Current Monitoring
ENERGY MONITORING
Applications And Products
CR Magnetics provides the tools needed for Energy Management.
Look inside for current solutions to today’s most pressing issue...
Visit us at www.crmagnetics.com
Transducers . Transformers . Relays . Indicators . Displays
3500 Scarlet Oak Blvd., St. Louis, MO 63122
Phone: 636-343-8518, Fax: 636-343-5119
Web: http://www.crmagnetics.com
E-mail: [email protected]
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
2
E-mail: [email protected]
A
Company Information, Product Guide, Selection Guide
Data Stream
Electrical Properties Measurement
with Digital Data Interface
B
Transducers
Analog Output Sensors
for Current, Voltage, Power, Frequency & Power Factor
C
Relays and Switches
Current, Voltage and Process Sensing Relays and
Switches
D
Indicators and Displays
Powerful Indicator Products for Power System Monitoring
E
Current Transformers
Commercial, ANSI, Split Core and Medium Voltage
Current Transformers
F
Potential Transformers
Low and Medium Voltage Potential Transformers
G
Application Guides
Useful technical Information on Power Systems
H
© 2008 CR Magnetics Inc. – All rights reserved
The information in this catalogue has been carefully checked and is believed to be accurate, however, no responsibility is assumed for any inaccuracies
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
3
E-mail: [email protected]
A
Introduction
Intro & Selection Guide
About Us
CR Magnetics specializes in Electrical Power Systems Monitoring
Introduction
A
CR Magnetics, Inc. has been in operation
since 1986, and is centrally located in St. Louis,
Missouri, where we maintain a 40,000 square
foot manufacturing facility and warehouse. CR
Magnetics also maintains manufacturing and
sales offices worldwide, including East Asia,
Europe, and the Americas.
CR Magnetics, Inc. Corporate Headquarters St. Louis, Missouri
Shenzhen, China
Manufacturing Facility
CR Magnetics philosophy is to provide a complete line of products and components that
enables our customers to solve the challenges they face in an ever changing competitive
environment. With rising energy costs and shrinking margins, maintaining efficiencies of
operations, processes, and capital equipment is of utmost concern to today’s Industrial and
Equipment Engineer. While we strive to provide the most cost effective and sophisticated
products available, we also provide expert engineering assistance when our customers
are working on tough applications. Our OEM support is also a primary advantage, giving
OEM’s access to low cost production for custom designs.
Recognizing the need for more products and improved customer support, CR Magnetics, Inc. is now part of the Khorporate
Holdings family of companies. The Khorporate Holdings companies are respected leaders in their industries for over 40 years.
Their expertise in distribution, customer service, and manufacturing will only help CR Magnetics continue to provide top quality
products, quickly and at a competitive price. CR Magnetics, Inc. has adopted the ISO9001:2008 Quality Management System.
Current Ring
Released in
1986
Today, CR Magnetics provides a complete line of sensors, transducers, and
components needed in today’s industry. Our new Current Mark
Indicators and Displays are further evidence of our continued
excellence. Our full line of Analog Transducers, ANSI and Commercial
Grade Current Transformers, Medium Voltage Products, Power Meter and
General Purpose components provide any user the tools they need to
improve any application. Our engineers are ready to answer any questions, and we won’’t rest until we get the right product for the right job at
the right price. Give us a call today, and find out why CR Magnetics are
the Professional Energy Monitoring experts.
Current Mark
Indicators
Newest Product
Release
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
4
E-mail: [email protected]
Technical Expertise and Support
CR Magnetics Focus on Service and Technology
CR Magnetics staff includes engineering and technical professionals who
bring a century’s worth of experience in the electrical monitoring and
power measurement industry. This experience provides our customers with
solutions in solving the most difficult application challenge.
A
All CR Magnetics parts meet the lead-free and other dangerous chemical requirements of
RoHS. Our most popular products carry CE, UL, and CSA certifications. Our facilities also
include the necessary equipment including high-pot testing, environmental testing, and load
testing to be able to provide our customers the information and source they need when
exploring custom solutions that require agency approvals. Our experience in working with
certified bodies make implementing new and exciting monitoring schemes much easier and
quicker.
CR Magnetics staff includes quality monitoring and assurance personnel.
These personnel have no other function than to make sure our products
are maintained with the highest quality level possible. All quality issues
are tabulated from customers, employees, and suppliers. Documentation
maintained includes customer complaints, corrective actions, and fully
traceable materials from supplier through customer. Statistical process
control is utilized in the winding, potting, and calibration areas, controlled
by documented setups, and re-verified on a regular basis. All procedures
are maintained and referenced in an industry standard quality manual.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
5
E-mail: [email protected]
Introduction
Our fully NIST traceable lab consists of six testing stations, each with laboratory
grade closed loop controlled power system references that are used to provide
exacting baseline inputs for proper calibration of all our products. These stations
can create the identical situation faced in the field by our customers, including any
voltage, current, or frequency level. The shape and form of these signals can also
be adjusted to provide data on how our products react in these situations. CR
Magnetics also maintains the proper power meter testing equipment which is
designed to meet the parallellogram method of the ANSI grade meters, as well as
an engineering based test system to verify absolute phase angle shifts with initial
inductance measurement of our sensing transformers. These stations are specifically
designed to provide the correct specifications for our products when applied in
unique or common applications.
Electrical Monitoring Products
DATA STREAM DIGITAL TRANSDUCERS
Introduction
A
Page 11
The DATA STREAM series of digital transducers are some of the industry’s most advanced devices to
measure and monitor electrical power systems. Available in multi-function and single function designs,
these products sense Voltage, Current, Power Factor, Real Watts, VARS, and Frequency in a
single compact package. The data is then sent over an RS485 bus to other digital based
systems for monitoring and controls. A simple command interface using short ASCII commands tells the device to send its data. Full user control over baud rate, scaling, and
addressing is available. An optional Modbus design is also available for industry standard
control and data systems. All types of electrical systems can be measured, including single,
and 3 phase systems, as well as DC systems.
ANALOG TRANSDUCERS
Page 27
CR Magnetics Analog Transducers are cost effective devices designed to be building
blocks for the designer who needs accurate and stable monitoring of electrical properties. The
product line includes Voltage, Current, Power, and Frequency measuring devices. Each product
is available with either a process level 0-5VDC output, or a process loop 4-20mA output. Selfpowered, loop powered, and supply powered devices are available. Calibration methods
include True RMS sensing for noisy or variable frequency, as well as Average Sensing for loads
run off utility power. Current sensing is available in split core designs so instrumentation can
be added without powering down electrical systems. Products can measure single phase, three phase, and
DC systems.
RELAYS AND SWITCHES
Page 59
CR Magnetics Relays and Switches are engineered components designed to provide electrical
power system sensing with a switching action output. These components are available in a wide range of
configurations depending on your application needs. Proving go/no go switches, adjustable switches for
limit applications, and fully adaptable relay products for safety and lockout protections. CR Magnetics
also provides a full line of AC and DC level controls for a wide variety of applications including
motors, loop alarms, and process monitoring. A wide variety of packaging includes DIN Rail mount, panel
mount, and wire mounted versions.
For more advanced switching options
See our DATA STREAM products
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
6
E-mail: [email protected]
Electrical Monitoring Products
CURRENT INDICATORS AND DISPLAYS
Page 75
Solid Core & Split Core Current Transformers
Page 83
CR Magnetics supplies a variety of standard Solid Core and Split Core Current Transformers
designed for measuring electrical systems. These components provide the building blocks to interface most industry
standard and customer designed electrical power monitoring systems and equipment. Our transformer line includes
ANSI and Commercial grade industry standard parts, as well as PC Board mounted designs for custom and OEM controls. We carry an extensive line of Medium Voltage (above 1KV) products for the utility and
industrial markets. Also unique to CR Magnetics are our Power Meter class of transformers with better than
0.2% accuracy. Finally, a line of Ground Fault transformers are available as well that provide
accurate measurement of extremely small ground fault currents. Whatever the application, CR
Magnetics can provide the exact product to meet industry’s continually changing
needs. Most products can be used as interfaces with other CR Magnetics products,
and are UL and CSA approved.
POTENTIAL TRANSFORMERS
Page 117
CR Magnetics carries an extensive line of Potential Transformers that are used to monitor and measure
various levels of AC Voltages. Typically modeled similarly to common power transformers, potential
transformers are specially designed to provide accurate input versus output curves over a wide range
of loading. Whereas power transformers are typically designed for 70 to 80 percent regulation, potential
transformers are desinged for 99% or better regulation.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
7
E-mail: [email protected]
A
Introduction
CR Magnetics Current Indicators are the recognized industry standard in simple but effective electrical circuit
monitoring. These indicators can be used to check the status of AC current carrying conductors, and can provide an
easy method to tell the operation of heaters, motors, fans, and other AC electrical equipment without disconnecting
power and physically measuring connections and equipment. AC current in a conductor induces the LED to light, indicating the presence of AC current in the conductor. Failure of the LED to indicate suggests open heater elements, broken motor leads, and failed fuses without physically measuring the circuits. Value priced and available in all-in-one and
remote indicating packages, these products provide payback by saving downtime and
maintenance costs.
Selection Guide
DATA STREAM
DIGITAL TRANSDUCERS
SECTION B, PAGE 11
ANALOG TRANSDUCERS
SECTION C, PAGE 27
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v
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OTHER
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CR
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CR
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CR
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CR
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CR
48
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CR
41
00
CR
42
10
CR
42
00
CR
44
00
CR
45
00
CR
D6
10
0
CR
D5
10
0
CR
D4
10
0
CR
D4
50
0
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OUTPUT
AC Current
AC Voltage
AC Power
AC Energy
DC Current
DC Voltage
DC Power
Frequency
Power Factor
True RMS
Average RMS
Multi-Phase
Digital
0-5 VDC/0-10 VDC
4-20 mA DC
0 +/- 5 VDC
0-5 VAC
12/24 VDC Power
Loop Powered
Self Powered
Din Rail Mount
Split Core
Panel Mount
UL/CSA Approved
CE Approved
RoHS Compliant
INPUT
Introduction
A
CR Magnetics manufactures many custom products for our customers. Whether it is a unique
input range or output style, we can handle any special request. If you can’t find what you
need, call our expert technical staff and we can suggest a solution!
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
8
E-mail: [email protected]
Selection Guide
RELAYS & SWITCHES
SECTION D, PAGE 59
CURRENT TRANSFORMERS
SECTION F, PAGE 83
CURRENT INDICATORS
AND DISPLAYS
SECTION E, PAGE 75
CR4
39
5
CR5
39
5
CR7
31
0
CR3
39
5
CR3
49
5
CR9
30
0
CR9
40
0
CR9
50
0
CR9
60
0
CR4
5
PH
-25
PH
-31
CR2
55
0
CRM
10
00
CRM
20
00
CRM
30
00
17
,18
,19
CR8
30
0
CR8
75
0
CR8
40
0
5A
SOL
ID
5A
SPL
IT
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Use CR Magnetics Current and Potential Transformers with any
transducer, relay, or indicator product to extend the measuring range
of the device. Currents as high as 10,000 Amps and voltages as high
as 33KV can be accurately and inexpensively measured.
POTENTIAL TRANSFORMERS
SECTION G, PAGE 117
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
9
E-mail: [email protected]
OTHER
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SUPPLY
AC Current
AC Voltage
DC Current
DC Voltage
Mechanical Relay
Solid State Relay
LED Indication
12/24 Vdc Power
120 Vac Power
240 Vac Power
Self Powered
Ground Fault
Split Core
Splash Proof
Remote Sensing
Wire Mount
Panel Mount
PCB Board Mount
DIN Rail Mount
UL/CSA Approved
..UL Listed
CE Approved
RoHS Compliant
Reach Compliant
Introduction
5A
ME
DIU
M
W.
PR
IM A
Y
A
Selection Guide Notes
Introduction
A
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
10
E-mail: [email protected]
Data Stream Transducers RS485 Output
D ata
Stream
TM
DATA STREAM Digital Transducers for Monitoring Current
Voltage, Power, Phase Angle and Frequency
The Data Stream series provides a digital stream of data that can contain complete electrical properties
information including current, voltage, power, phase angle and frequency. Additionally, an energy totalizer can
be configured to give total energy calculations. All data is transmitted via an RS485 bus, and a single bus can
communicate to up to multiple devices. MODBUS capable programming is also available.
The CRD4100 series are designed to provide AC current value information over
an RS485 bus. These units are available in single element, 3 Phase 3 Wire (DELTA)
systems, and 3 Phase 4 Wire (WYE) systems. Output information includes all all
line/phase currents, depending on system configuration.
The CRD4500 series are designed to provide AC voltage value information
over an RS485 bus. These units are available in single element, 3 Phase 3 Wire
(DELTA) systems, and 3 Phase 4 Wire (WYE) systems. Output information includes
all all line/phase voltages, depending on system configuration.
The CRD6100 series are designed to measure DC power systems. Available in
single element only, these units will provide current, voltage, and power
information across an RS485 Bus.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
11
E-mail: [email protected]
Data Stream
The CRD5100 series are designed to provide multifunction measurement of AC
power supplies, and output the information over an RS485 bus. These units are
available in single element, 3 Phase 3 Wire (DELTA) systems, and 3 Phase
4 Wire (WYE) systems. Output information includes all phase voltages, all line currents, overall power real and imaginary, frequency, and average phase angle.
There is also included an resettable energy totalizer function.
B
CR
D5
11
0
CR
D5
15
0
CR
D5
17
0
CR
D4
11
0
CR
D4
15
0
CR
D4
17
0
CR
D4
51
0
CR
D4
55
0
CR
D4
57
0
CR
D6
11
0
Selection Guide
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- ❑ - ❑ 1 ELEMENT, AC MULTIFUNCTION RS485 TRANSDUCER
- ❑ - ❑ 3 PHASE, 3 WIRE, AC MULTIFUNCTION RS485 TRANSDUCER
- ❑ - ❑ 3 PHASE, 4 WIRE, AC MULTIFUNCTION RS485 TRANSDUCER
- ❑ 1 ELEMENT AC CURRENT RS485 TRANSDUCER
- ❑ 2 ELEMENT AC CURRENT RS485 TRANSDUCER
- ❑ 3 ELEMENT AC CURRENT RS485 TRANSDUCER
-❑
1 ELEMENT AC VOLTAGE RS485 TRANSDUCER
-❑
2 ELEMENT AC VOLTAGE RS485 TRANSDUCER
-❑
3 ELEMENT AC VOLTAGE RS485 TRANSDUCER
-❑
1 ELEMENT DC CURRENT RS485 TRANSDUCER
1
5
15
25
150 - 0-150 VAC
300 - 0-300 VAC
(Available up to and including 600VAC)
-
0-1 AAC
0-5 AAC
0-15 AAC
0-25 AAC
(Above 25 Amps must use 5 Amp CT)
(See Section G)
Complete your system with 485/232 adapters and Power Supplies
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
12
E-mail: [email protected]
AGENCY
Data Stream
✔
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METHOD
CRD5110
CRD5150
CRD5170
CRD4110
CRD4150
CRD4170
CRD4510
CRD4550
CRD4570
CRD6110
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✔
APPLICATION
B
AC Current
AC Voltage
DC Current
DC Voltage
AC Power
DC Power
Phase Angle
Frequency
Single Phase
Three Phase 3 Wire
Three Phase 4 Wire
Power Totalizer
Panel Mount
DIN Rail Mount
UL/CSA Approved
CE Approved
RoHS Compliant
Data Stream RS485 Digital Transducer
DIN RAIL / PANEL MOUNT
The CRD5100 Series Data Stream Digital Transducers are designed for
complete monitoring of electrical power systems. The digital technology is used to measure voltage, current, power frequency and energy in
single and three phase designs. The data is streamed over an RS485
IEEE bus which enables multiple transducers to communicate thru a single master connection. These advanced sensors are ideal for entire
plant or zone monitoring. Also, the communication alagorithm can be
pre-ordered with ASCII based control or modified MODBUS based
control.
Sensing
Single Element - .26” Window
150 to 300 VAC
1 to 25 AAC Input Range
Applications
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
CRD5150
Two Element - .26” Window
150 to 300 VAC
1 to 25 AAC Input Range
Features
35mm DIN Rail or Panel Mount
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
Regulatory Agencies
CRD5170
Three Element - .26” Window
150 to 300 VAC
1 to 25 AAC Input Range
PART NUMBERS
CRD5110
CRD5150
CRD5170
150
300
-
0-150 VAC
0-300 VAC
Available up to and including 600 VAC
1 Element, AC Multifunction RS485 Digital Transducer
3 Phase, 3-Wire AC Multifunction RS485 Digital Transducer
3 Phase, 4-Wire AC Multifunction RS485 Digital Transducer
1
0-1 AAC
Note: Add an M at
5
0-5 AAC
15
0-15 AAC
the end for MODBUS
25
0-25 AAC
CRD5110-150-5-M
Above 30 AAC must use 5 amp CT
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
13
E-mail: [email protected]
B
Data Stream
Voltage, True RMS
Current, True RMS
Active Power, bi-directional
Active Energy, bi-directional
Reactive Power, bi-directional
Reactive Energy, bi-directional
Power Factor
Frequency
CRD5110
RS485 Digital Transducer
SPECIFICATIONS
Basic Accuracy: .......................0.5%
Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Thermal Drift: ..........................500 PPM/°C
Relative Humidity: ...............80% for temperatures up to
Calibration: ..............................True RMS Sensing
Operating Temperature : ..........0°C to +60°C
1
Installation Category: ..............CAT II
Vibration Tested To: .................IEC 60068-2-6,1995
Pollution Degree: ....................2
31°C
and decreasing linearly to 50% at 40°C
Output Resolution: ..................................................16 bit
Transducer fanout on common bus: ...................64 max.
Baud Rate :
3
...............1200, 2400, 4800, 9600,19.7K .bps
Insulation Voltage: ..................2500 VDC
A/D Conversion Type: ..................4th order Delta Sigma
Frequency Range: .................20 Hz - 5 KHz
Data Format: .... .....................................................ASCII
Cleaning: ................................Water-dampened cloth
Weight:.. ..............................................................0.5 lbs.
Altitude: ..................................2000 meter max
B
Response Time: .......................250 ms. max. 0-90% FS
Device Address :
............................................00 to FF
3
MTBF: ....................................Greater than 100K hours Supply Current:..................Typical 30mA
Supply Voltage : ......................24 VDC ±10%
2
1) RH 5% to 95%, non-condensing
Data Stream
2) 0.4% max. ripple Vpp
address 01, baud rate 9600, no parity, no flow control, 1 stop bit
3) Factory default settings:
LINE
LINE
NN
N
N
LL1
1
2
3
4
LOAD
9
8
7
6
5
L2
L1
L3
CRD5110
LINE
LINE
+
SUPPLY
9
8
7
6
5
LOAD
LOAD
SUPPLY
Single Element, 3-Wire
L1
+
L2
L3
L3
L2
485
9
8
7
6
5
SUPPLY
LOAD
LOAD
SUPPLY
CRD5170
3 Element, 4-Wire
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
RX
DIA.
1
2
3
4
1.06
(26.8)
2.874
(73)
LINE
-
Connection Diagram
2.874
(73)
L1
1
2
3
4
+ 485
-
3 Element, 3-Wire
9
8
7
6
5
-
L3
1
2
3
4
0.14
(3.5)
+
LOAD
LOAD
CRD5150
N
N
L1
+ 485
-
9
8
7
6
5
-
Single Element, 2-Wire
L2
L2
L2
1
2
3
4
LINE
LINE
CRD5150
L1
L1
+ 485
-
LOAD
1
2
3
4
Max 30mA
DATA STREAM
TRANSDUCER
DATA-
1 hole for single element
CRD485-232
GND
+5VDC
+
0.26 (6.5) Dia.
0.79
2 holes
(20)
DATA +
9
8
7
6
5
-
COM
RS232
GND
DB 9, FEMALE
SUPPLY
for two element
3 holes for three element
ASCII Simplified Programming Commands
2.99
(76)
A simplified data structure is used with only 6 commands required for full control of
the transducer.
Commands are : Read Transducer Name, Read Configuration, Set
Configuration, Read Measurements, Read Energy Totalizer and Clear Energy
Totalizer.
1.42
(36)
0.20
(5.1)
3.268
(83)
For illustration, the following commands are used to read data from a
CRD5170 3 Phase, 4 Wire Transducer with a device address of 00.
Command Transducer to Read Data:
Transducers Response:
#00A<cr>
>+[% FS Voltage
]+[% FS Current
]+[% FS
L1-N
L1
Voltage
]+[% FS Current
]+[% FS Voltage
]+[% FS Current
,][+/- % FS
L2-N
L2
L3-N
L3
OUTLINE DRAWING
Power][+/-% FS VARS][+/-Power Factor][Frequency]<cr>
Command Transducer to Read Energy Totalizer: #00W<cr>
Transducer Responds: 01[+/-KWHr]{\[+/-KVHr][check sum]<cr>
Note: This is for illustration purposes only, See Applications Guides (Section I
for complete instructions.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
14
E-mail: [email protected]
Data Stream RS485 Digital Current Transducer
DIN RAIL / PANEL MOUNT
The CRD4100 Series Data Stream Digital Current Transducers
are designed for applications where AC current waveforms are
not purely sinusoidal. The digital technology is used to measure voltage, current, power frequency and energy in single and three phase
designs. The data is streamed over an RS485 IEEE bus which enables
multiple transducers to communicate thru a single master connection.
These advanced sensors are ideal for entire plant or zone monitoring.
Also, the communication alagorithm can be pre-ordered with ASCII
based control or modified MODBUS based control.
Sensing
True RMS Current, Each Phase
CRD4110
Single Element - .26” Window
1 to 25 AAC Input Range
Applications
Features
35mm DIN Rail or Panel Mount
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
CRD4150
Two Element - .26” Window
1 to 25 AAC Input Range
Regulatory Agencies
CR Magnetics has a wide selection of Current and Potential
Transformers to extend the range of any part.
See Sections F & G for details.
CRD4170
Three Element - .26” Window
1 to 25 AAC Input Range
PART NUMBERS
CRD4110
CRD4150
CRD4170
-
Single Element, AC Current RS485 Digital Transducer
Two Element, AC Current RS485 Digital Transducer
Three Element, AC Current RS485 Digital Transducer
1
5
15
25
-
0-1 AAC
0-5 AAC
0-15 AAC
0-25 AAC
Above 30 AAC must use 5 amp CT
Note: Add an M at
the end for MODBUS
CRD4110-5-M
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
15
E-mail: [email protected]
Data Stream
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
B
RS485 Digital Current Transducer
SPECIFICATIONS
Basic Accuracy: .......................0.5%
Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Thermal Drift: ..........................500 PPM/°C
Relative Humidity: ...............80% for temperatures up to
Calibration: ..............................True RMS Sensing
Operating Temperature : ..........0°C to +60°C
1
Installation Category: ..............CAT II
Vibration Tested To: .................IEC 60068-2-6,1995
Pollution Degree: ....................2
31°C
and decreasing linearly to 50% at 40°C
Output Resolution: ..................................................16 bit
Transducer fanout on common bus: ...................64 max.
Baud Rate :
...............1200, 2400, 4800, 9600,19.7K .bps
3
Insulation Voltage: ..................2500 VDC
A/D Conversion Type: ..................4th order Delta Sigma
Frequency Range: .................20 Hz - 5 KHz
Data Format: .... .....................................................ASCII
Cleaning: ................................Water-dampened cloth
Weight:.. ..............................................................0.5 lbs.
Altitude: ..................................2000 meter max
B
Response Time: .......................250 ms. max. 0-90% FS
Device Address :
............................................00 to FF
3
MTBF: ....................................Greater than 100K hours Supply Current:..................Typical 30mA
Supply Voltage : ......................24 VDC ±10%
2
1) RH 5% to 95%, non-condensing
Data Stream
N
2) 0.4% max. ripple Vpp
address 01, baud rate 9600, no parity, no flow control, 1 stop bit
3) Factory default settings:
LINE
L1
L1
N
N
L
N
L2
L2
L1
1
2
3
4
9
8
7
6
5
1
2
3
4
+ 485
-
+
9
8
7
6
5
-
SUPPLY
LOAD
CRD4110
L2
L2
L3
L3
1
2
3
4
-
2.874
(73)
+
485485
+ -
LOAD
LOAD
CRD4170
3 Element, 4-Wire
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
RX
DIA.
1
2
3
4
1.06
(26.8)
2.874
(73)
L3
L3
SUPPLY
SUPPLY
Connection Diagram
9
8
7
6
5
L2
L2
-
3 Element, 3-Wire
0.14
(3.5)
SUPPLY
9
8
7
6
5
SUPPLY
SUPPLY
LOAD
LOAD
-
SUPPLY
1
2
3
4
+ 485485
+
+
Single Element, 3-Wire
L1
L1
N
N
9
8
7
6
5
CRD4150
CRD4150
Single Element, 2-Wire
L1
L1
+ 485
485
-
LOAD
LOAD
LOAD
1
2
3
4
Max 30mA
DATA STREAM
TRANSDUCER
9
8
7
6
5
0.26 (6.5) Dia.
for two element
GND
CRD485-232
-
COM
RS232
GND
DB 9, FEMALE
SUPPLY
3 holes for three element
2.99
(76)
DATA-
+5VDC
+
1 hole for single element
0.79
2 holes
(20)
DATA +
ASCII Simplified Programming Commands
A simplified data structure is used with only 6 commands required for full control of
the transducer.
Commands are : Read Transducer Name, Read Configuration, Set
Configuration, Read Measurements, Read Energy Totalizer and Clear Energy
1.42
(36)
Totalizer.
0.20
(5.1)
3.268
(83)
For illustration, the following commands are used to read data from a
CRD5170 3 Phase, 4 Wire Transducer with a device address of 00.
Command Transducer to Read Data:
Transducers Response:
Voltage
OUTLINE DRAWING
#00A<cr>
>+[% FS Voltage
]+[% FS Current
]+[% FS
L1-N
L1
]+[% FS Current
]+[% FS Voltage
]+[% FS Current
,][+/- % FS
L2-N
L2
L3-N
L3
Power][+/-% FS VARS][+/-Power Factor][Frequency]<cr>
Command Transducer to Read Energy Totalizer: #00W<cr>
Transducer Responds: 01[+/-KWHr]{\[+/-KVHr][check sum]<cr>
Note: This is for illustration purposes only, See Applications Guides (Section I
for complete instructions.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
16
E-mail: [email protected]
Data Stream RS485 Digital Voltage Transducer
DIN RAIL / PANEL MOUNT
The CRD4500 Series Data Stream Digital Transducers are
designed for applications where AC current waveforms are not
purely sinusoidal. The digital technology is used to measure voltage,
current, power frequency and energy in single and three phase
designs. The data is streamed over an RS485 IEEE bus which enables
multiple transducers to communicate thru a single master connection.
These advanced sensors are ideal for entire plant or zone monitoring.
Also, the communication alagorithm can be pre-ordered with ASCII
based control or modified MODBUS based control.
Sensing
True RMS Voltage, Each Phase
CRD4510
Single Element
150 to 300 VAC Input Range
Applications
Features
35mm DIN Rail or Panel Mount
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
CRD4550
Two Element
150 to 300 VAC Input Range
Regulatory Agencies
CRD4570
Three Element - .26” Window
150 to 300 VAC Input Range
PART NUMBERS
CRD4510
CRD4550
CRD4570
-
Single Element, AC Voltage RS485 Digital Transducer
Two Element, AC Voltage RS485 Digital Transducer
Three Element, AC RS485 Digital Transducer
150 300 -
0-150 VAC
0-300 VAC
Available up to and including 600 VAC
Note: Add an M at
the end for MODBUS
CRD4510-150-M
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
17
E-mail: [email protected]
Data Stream
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
B
RS485 Digital Voltage Transducer
SPECIFICATIONS
Basic Accuracy: .......................0.5%
Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Thermal Drift: ..........................500 PPM/°C
Relative Humidity: ...............80% for temperatures up to
Calibration: ..............................True RMS Sensing
Operating Temperature : ..........0°C to +60°C
31°C
1
Installation Category: ..............CAT II
Vibration Tested To: .................IEC 60068-2-6,1995
Pollution Degree: ....................2
and decreasing linearly to 50% at 40°C
Output Resolution: ..................................................16 bit
Transducer fanout on common bus: ...................64 max.
Baud Rate :
3
...............1200, 2400, 4800, 9600,19.7K .bps
Insulation Voltage: ..................2500 VDC
A/D Conversion Type: ..................4th order Delta Sigma
Frequency Range: .................20 Hz - 5 KHz
Data Format: .... .....................................................ASCII
Cleaning: ................................Water-dampened cloth
Weight:.. ..............................................................0.5 lbs.
Device Address :
Altitude: ..................................2000 meter max
B
Response Time: .......................250 ms. max. 0-90% FS
............................................00 to FF
3
MTBF: ....................................Greater than 100K hours Supply Current:..................Typical 30mA
Supply Voltage : ......................24 VDC ±10%
2
1) RH 5% to 95%, non-condensing
Data Stream
2) 0.4% max. ripple Vpp
address 01, baud rate 9600, no parity, no flow control, 1 stop bit
3) Factory default settings:
LINEN
Max 30mA
L2 N
L1
N L1
L2
L1
1
2
3
4
9
8
7
6
5
1
2
3
4
+
485
-
-
+
SUPPLY
LOAD
CRD4510
L3 L2
L2 L1
L3
L1
L3 L2
L2 L1
L1
L3
9
8
7
6
5
-
N
N
1
2
3
4
-
+ 485
485
-
9
8
7
6
5
-
+ SUPPLY
SUPPLY
SUPPLY
SUPPLY
LOAD
LOAD
-
+
Single Element, 3-Wire
+ 485
485
+
+ 485
485
SUPPLY
SUPPLY
LOAD
LOAD
CRD4550
Single Element, 2-Wire
1
2
3
4
9
8
7
6
5
LOAD
LOAD
CRD4550
CRD4570
3 Element, 3-Wire
Connection Diagram
0.14
(3.5)
1
2
3
4
9
8
7
6
5
3 Element, 4-Wire
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
RX
DIA.
1
2
3
4
1.06
(26.8)
DATA STREAM
TRANSDUCER
2.874
(73)
DATA +
9
8
7
6
5
DATAGND
+
2.874
(73)
CRD485-232
+5VDC
-
COM
RS232
GND
DB 9, FEMALE
SUPPLY
ASCII Simplified Programming Commands
2.99 (76)
A simplified data structure is used with only 6 commands required for full control of
the transducer.
Commands are : Read Transducer Name, Read Configuration, Set
Configuration, Read Measurements, Read Energy Totalizer and Clear Energy
1.42
(36)
Totalizer.
0.20
(5.1)
3.268
(83)
For illustration, the following commands are used to read data from a
CRD5170 3 Phase, 4 Wire Transducer with a device address of 00.
Command Transducer to Read Data:
Transducers Response:
Voltage
OUTLINE DRAWING
#00A<cr>
>+[% FS Voltage
]+[% FS Current
]+[% FS
L1-N
L1
]+[% FS Current
]+[% FS Voltage
]+[% FS Current
,][+/- % FS
L2-N
L2
L3-N
L3
Power][+/-% FS VARS][+/-Power Factor][Frequency]<cr>
Command Transducer to Read Energy Totalizer: #00W<cr>
Transducer Responds: 01[+/-KWHr]{\[+/-KVHr][check sum]<cr>
Note: This is for illustration purposes only, See Applications Guides (Section I
for complete instructions.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
18
E-mail: [email protected]
Data Stream RS485 Digital DC Current Series
The CRD6100 Series Data Stream Digital Transducers are
designed for applications with DC current and voltage. The digital technology is used to measure voltage, current, power in single
phase designs. The data is streamed over an RS485 IEEE bus which
enables multiple transducers to communicate thru a single master connection. These advanced sensors are ideal for entire plant or zone
monitoring. Also, the communication alagorithm can be pre-ordered
with ASCII based control or modified MODBUS based control. Note:
To calculate current an external DC Current Transducer with 0-5VDC is
necessary. Please see our CR5210 Series.
B
Sensing
Single Element
150 to 300 VAC Input Range
Voltage
Current
Power
Energy
Data Stream
DC
DC
DC
DC
CRD6110
Applications
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
Features
35mm DIN Rail or Panel Mount
24 VDC powered
Use with external DC Current Transducer
Highest precision available
Connection diagram printed on case
Regulatory Agencies
Requires External DC Current Transducer
CR5210 0-5VDC Output
(Recommended)
PART NUMBERS
CRD6110
150 300 -
0-150 VDC
0-300 VDC
Single Element, DC Current RS485 Digital Transducer
5
-
0-5 VDC
Available up to and including600 VDC
Note: Add an M at
the end for MODBUS
CRD6110-150-5M
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
19
E-mail: [email protected]
Data Stream RS485 Digital DC Current Series
SPECIFICATIONS
Basic Accuracy: .......................0.5%
Torque Specifications: ....................3.0 inch lbs (0.4Nm)
Thermal Drift: ..........................500 PPM/°C
Relative Humidity: ...............80% for temperatures up to
Calibration: ..............................True RMS Sensing
Operating Temperature : ..........0°C to +60°C
1
Installation Category: ..............CAT II
Vibration Tested To: .................IEC 60068-2-6,1995
Pollution Degree: ....................2
31°C
and decreasing linearly to 50% at 40°C
Output Resolution: ..................................................16 bit
Transducer fanout on common bus: ...................64 max.
Baud Rate :
3
...............1200, 2400, 4800, 9600,19.7K .bps
Insulation Voltage: ..................2500 VDC
A/D Conversion Type: ..................4th order Delta Sigma
Frequency Range: .................20 Hz - 5 KHz
Data Format: .... .....................................................ASCII
Cleaning: ................................Water-dampened cloth
Weight:.. ..............................................................0.5 lbs.
Altitude: ..................................2000 meter max
B
Response Time: .......................250 ms. max. 0-90% FS
Device Address :
3
............................................00 to FF
MTBF: ....................................Greater than 100K hours Supply Current:..................Typical 30mA
Supply Voltage : ......................24 VDC ±10%
2
1) RH 5% to 95%, non-condensing
2) 0.4% max. ripple Vpp
address 01, baud rate 9600, no parity, no flow control, 1 stop bit
Data Stream
3) Factory default settings:
Max 30mA
Connection Diagram
0.14
(3.5)
1
2
3
4
9
8
7
6
5
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
RX
DIA.
1
2
3
4
1.06
(26.8)
DATA STREAM
TRANSDUCER
2.874
(73)
DATA +
9
8
7
6
5
DATAGND
+
2.874
(73)
CRD485-232
+5VDC
-
COM
RS232
GND
DB 9, FEMALE
SUPPLY
ASCII Simplified Programming Commands
2.99 (76)
A simplified data structure is used with only 6 commands required for full control of
the transducer.
Commands are : Read Transducer Name, Read Configuration, Set
Configuration, Read Measurements, Read Energy Totalizer and Clear Energy
1.42
(36)
Totalizer.
0.20
(5.1)
3.268
(83)
For illustration, the following commands are used to read data from a
CRD5170 3 Phase, 4 Wire Transducer with a device address of 00.
Command Transducer to Read Data:
Transducers Response:
#00A<cr>
>+[% FS Voltage
]+[% FS Current
]+[% FS
L1-N
L1
Voltage
]+[% FS Current
]+[% FS Voltage
]+[% FS Current
,][+/- % FS
L2-N
L2
L3-N
L3
OUTLINE DRAWING
Power][+/-% FS VARS][+/-Power Factor][Frequency]<cr>
Command Transducer to Read Energy Totalizer: #00W<cr>
Transducer Responds: 01[+/-KWHr]{\[+/-KVHr][check sum]<cr>
Note: This is for illustration purposes only, See Applications Guides (Section I
for complete instructions.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
20
E-mail: [email protected]
AC/DC Power Supply
The CRPS24VDC Series Power supplies are designed to
meter CR Magnetics digital and analog transducers.
These switched mode power supplies are compact and
efficient with a modern clean looking case.
Features
CRPS24VDC - 120
120/240 VAC
35mm DIN Rail or Panel Mount
Available with 120Vac/Vdc and 240Vac/Vdc Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
CRPS24VDC - 240
V
1L
2
3 N
4
Regulatory Agencies
9
8
7
GND 6
VDD 5
.13
3.3
1.69
43
3.5)
1.42
36.07
Specifications
1.05
26.6
.13
3.3
Input Voltage
Rated Output
Output Voltage
Output Ripple
2.88
73
CONNECTION DIAGRAM
120V,240V±10% 50/60Hz
200mA
+24VDC
10mV
≤
PART NUMBERS
-
CRPS24VDC
Power Supply
120V Power Supply
240V Power Supply
120 240 -
with 24 VDC Output
CRD485-232
RS485 to RS232 Converter Accessory
Connect PC to RS485 Bus
TX
RX
1
2
3
4
DATA STREAM
TRANSDUCER
RS485
Terminals
DATA +
9
8
7
6
5
DATAGND
CRD485-232
+5VDC
+
-
COM
RS232
GND
DB 9, FEMALE
SUPPLY
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
21
E-mail: [email protected]
Data Stream
3.28
83
CL OF DIN
RAIL TRACK
.20
5
B
+24VDC
DATA STREAM RS485 DIGITAL TRANSDUCER
Application Notes
The range of any Data Stream Transducer can be extended with the use of CR Magnetics’ ANSI
grade current transformers and voltage transformers.
In these applications, current transformers
step down higher currents into standard 5 Amp AC current inputs, and voltage transformers step
down higher voltages into standard 120 VAC inputs.
This allows the designer to measure any
application with a single transducer.
Extending Current Range with Current Transformers
N
L1
L1
L2
L3
1
2
3
4
B
1
2
3
4
CT
CT
LOAD
Data Stream
Single Phase
LOAD
3 Phase 3 Wire
L1
L2
L3
N
1
2
3
4
CT
LOAD
3 Phase 4 Wire
Extending Voltage Range with Voltage Transformers
PT
L1
L2
L1
N
L3
PT
1
2
3
4
1
2
3
4
LOAD
LOAD
Single Phase
3 Phase 3 Wire
L1
N
PT
L2
L3
1
2
3
4
LOAD
3 Phase 4 Wire
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
22
E-mail: [email protected]
DATA STREAM RS485 DIGITAL TRANSDUCER
Programming
Programming of the CR Magnetics DATA STREAM Series is straight forward and easily implemented via user programs or
The DATA STREAM Software. The programming language is ASCII based and consists of Commands and Return data.
List of Common Commands
Preamble
Addr
Dir
Data
Read Transducer Name
$
00 to FF
M
N/A
Read Energy Totalizer
#
00 to FF
W
N/A
00 to FF
N/A
Command
Read All Data
#
Read Transducer Configuration
Set Transducer Configuration
Clear Energy Totalizer
$
%
&
00 to FF
00 to FF
Addr
[Dir]
[Data]
Addr
2 ASCII characters which selects
[Dir]
[Data]
<cr>
Example:
Input Voltage =300 VAC RMS,
Input current = 4 AAC
A single ASCII character directive which qualifies
Frequency of 50 Hz.
A set of ASCII characters required by certain
Send
command functions.
Receive
A carriage return must be placed as an
end of line character.
Thus the formula:
M
Value = Data(%) X Full Scale
00 to FF
Data
Will give the actual value of the parameter.
not used
Transducer Correct Response:
For this example:
!
Voltage = +0.6000% X 500 = 300 VAC RMS
Addr (00 to FF)
Current = +0.4000% X 5 = 4 AAC RMS
Name
Real Power = +0.4800% X 500 X 5 = 1200 Watts
<cr>
Transducer Wrong Response:
VARs = +0.0000 X 500 X 5 = 0.0000 Vars
Power Factor = +1.0000 X 100% = 100% PF (purely resistive)
?
Addr (00 to FF)
The Frequency Value is the Actual Data:
<cr>
Example:
Send
Receive
Frequency = 50.000 Hertz
$0AM<cr>
NOTE:
!0A51101205<cr>
Single function
units will return only the single function.
For
Multiphase units, the Voltage and Current Data will be
with a range of 120 Volts and 5 amps is programmed with the
returned in the following order:
address 0A, and returns its last 4 digits to the system.
3 Phase 3 Wire
Voltage
, Current , Voltage
, Current ,
12
1
32
3
Read All Data Command
Preamble
#
Dir
A
Data
Multifunction units will return Voltage, Current, Power,
Vars, Power Factor, and Frequency.
In this case, a CRD5110 Single Phase Multifunction transducer
Addr
#1BA<cr>
>+0.6000+0.8000+0.4800+0.0000+1.000050.000<cr>
All signed data is returned as a percent of Full Scale.
Read Transducer Name Command
Dir
RMS,
Power Factor = 1.000 (Pure resistive)
the command, not used on all commands.
$
Given a CRD5110, programmed with a Voltage range
Address 1B.
the address of the transducer.
Addr
Power, Vars, Power Factor, Frequency
00 to FF
3 Phase 4 wire
Voltage , Current , Voltage , Current , Voltage ,
1
1
2
2
3
not used
Transducer Correct Response:
Current , Power, Vars, Power Factor, Frequency.
3
Voltage %
(+/-X.XXXX)
Current % (+/-X.XXXX)
Power % (+/-X.XXXX)
VARS % (+/-X.XXXX)
Power Factor % (+/-X.XXXX)
Frequency (XX.XXX)
<cr>
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
B
of 500VAC RMS, and a Current range of 5 AAC RMS,
type of command.
Preamble
?
Addr (00 to FF)
23
E-mail: [email protected]
Data Stream
A single ASCII character which designates
Totalizer Period Number
N/A
<cr>
<cr>
Preamble
New Addr, Input Range, Baud
Transducer Wrong Response:
Each command sent to the DATA STREAM has the following structure:
Preamble
N/A
2
00 to FF
Command Structure
N/A
A
DATA STREAM RS485 DIGITAL TRANSDUCER
Programming (continued)
Example:
Read Energy Totalizer Command
Preamble
#
Dir
W
Addr
1.000 (Pure resistive) and a frequency of 50 Hz.
Energy data has not been requested since turn on of
the part.
Period Counter (00 to FF)
Send
KVHr Data (+/-XXXXXX)
Receive
Checksum (XX)
<cr>
B
#1BW<cr>
>01+0006C0+0000001E<cr>
Time Period = 01H = 1 Decimal
?
KwHr Data = +0006C0H = 1,728 Decimal
Addr (00 to FF)
KwHr Actual = 1,728 X 500 X 5 / 3600000 = 1.2 KwHrs
<cr>
KVARHr Data = +000000H = 0 Decimal
KVARHrs Actual = 0 KVARHrs
Description of Totalizer Function
Data Stream
The command is sent after the part has
been running one hour.
KWHr Data (+/-XXXXXX)
Transducer Wrong Response:
Input Voltage =300 VAC
RMS, Input current = 4 AAC RMS, Power Factor =
not used
Transducer Correct Response:
of 500VAC RMS, and a Current range of 5 AAC
RMS, and Address 1B.
00 to FF
Data
Given a CRD5110, programmed with a Voltage range
Checksum = 1EH
The energy totalizer function is a method by which the total
Doing the Check on the Checksum:
time can be measured.
3EH+31H+2BH+30H+30H+30H+36H+43H+30H+2BH+30H+30H
amount of energy in KwHrs and KVARHrs used over a period of
A data location within the program keeps
a running total of the amount of energy used.
This total starts
from zero and begins totalizing the instant power is turned on to
the transducer.
+30H+30H+30H+30H = 31EH AND FFH = 1EH
Read Transducer Configuration Command
Preamble
Totalizer data is outputted when the Read Energy Totalizer
Command is sent to the transducer.
period counter is set to zero.
Thus, at turn on, the
data increase the period counter by 1.
zero after 255 counts (FF).
not used
Transducer Correct Response:
After the first read of totalizer data,
the counter is incremented by 1 and reads 1.
2
Data
A counter called the time period counter, keeps track of
all instances of requested totalizer data.
00 to FF
Dir
outputs the amount of energy totaled since the last clear or
restart.
$
Addr
At this point, the transducer
Future requests for
This counter turns back to
Baud Rate Code (See Below)
Data Format (Always 01)
<cr>
This method
Transducer Wrong Response:
makes it very useful for total energy used calculations.
A Clear Totalizer Command function is also provided to reset the
?
Addr (00 to FF)
<cr>
totalizer as needed.
Example:
The largest period of totalizer data is 1,553.5 Hours with the full
scale voltage and current being input to the device.
Addr (00 to FF)
Input Range (Always 00)
It is important to know that the output data represents the amount
of energy used since the last clear or restart.
!
Longer peri
Send
Receive
$0A2<cr>
!0A000601<cr>
ods are possible with lower input voltages and currents.
In this case, a CRD5110 Multifunction transducer is programmed
The data output has gain and function factors that must be
the address, 00 for the Input Range (fixed), 06 for 9600 bps
included when calculating actual KwHr/KVARHr.
with the address 0A.
The formula is:
Baud rate, and 01 for no check sum on standard data (Data
Format is fixed).
Energy = Data Read X Volt Range X Current Range / 3600000
Baud Rate Codes are as follows:
Units are KwHrs and KVARHrs depending on data read.
Please note:
03 = 1200 bps
Unlike other data read from the transducer, the
04 = 2400 bps
energy data is transmitted as the ASCII representation of the
HEX value.
Reading the configuration returns 0A for
05 = 4800 bps
Hence, when the data would return as ASCII "FF",
06 = 9600 bps (Default)
this is equivalent to the decimal value 255.
07 = 19200 bps
Checksum data is provided as a verifier of correct data communi
cation.
The Checksum data is generated by totaling the sum of
all byte by byte data, in HEX, sent from the transducer after the
Read Energy Totalizer Command is accepted, then taking this
HEX value and performing a logical AND with the value FFH, and
outputting it.
value.
The data is an ASCII representation of the HEX
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
24
E-mail: [email protected]
Programming (continued)
Send:
Set Transducer Configuration Command
Preamble
%
Dir
not used
Addr
Data
Receive:
00 to FF
The command was sent properly, as the correct time period
New Addr - 00 to FF
been increased by 1, so the next Read Totalizer Command will
Input Range
number was sent.
- Always Set
Baud Rate - 03 to 07
To 00
Data Format - Always Set to 01
Transducer Correct Response:
Transducer Wrong Response:
Send
give a time period number of 4.
Reset to Factory Defaults Command
As an aid to system startup, a Reset to Factory Defaults
<cr>
to Address 01 and Baud rate 9600 bps, no address is needed to
New Addr (00 to FF)
Command is provided.
Addr (00 to FF)
NOTE:
Send:
Receive:
Clear Energy Totalizer Command
Dir
not used
Need to reset a transducer to Factory settings via a
RS232 comm port.
@CEAFW<cr>
!01<cr>
00 to FF
Data
Time Period Count
Transducer Correct Response:
!
Addr (00 to FF)
<cr>
Transducer Wrong Response:
?
Addr (00 to FF)
<cr>
Description of Clear Totalizer Function
The Clear Energy Totalizer Command is a method by which the
internal energy totalizer can be reset to zero.
The programmer
simply addresses the transducer with the appropriate address, and
also sends the correct time period number which will then clear
the totalizer to zero.
The correct time period number is the value that was received with
the last Read Totalizer Data Command.
An incorrect period num
ber will result in a command error, and the totalizer will not be
cleared. Clearing the totalizer properly does not reset the Time
Period
Counter.
Upon proper totalizer clear, the Time Period
Counter will be increased by 1.
Should an invalid Clear Totalizer Command be refused (because
of an incorrect address or an incorrect Time Period Number), the
totalizer will not be cleared, energy data will continue to be
totalized to the sum, and the Time Period Counter will not be
incremented.
Example:
A CRD5110 with Address 0A needs to have its totalizer
cleared.
times.
Send:
Receive:
The totalizer data has been read 3 previous
&0A04<cr>
?0A<cr>
The CRD5110 received an order to clear the totalizer, but an
improper time period number was received.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
25
E-mail: [email protected]
Data Stream
Example:
and sets the baud rate to 19,200 bps.
&
B
THIS IS FOR ONE TO ONE CONFIGURATIONS ONLY!!!!
The command changes the address to 0B,
Preamble
ALL TRANSDUCERS ON THE NET ORK
CAUSE NUMEROUS BUS CONFLICTS.
!0B<cr>
Addr
THIS COMMAND CANNOT BE USED ON NETWORKED
TRANSDUCERS.
WILL BE RESET, AND THE RESULTING RETURN INFO WILL
In this case, a CRD5110 Multifunction transducer is programmed
with the address 0A.
Since this command resets the transducer
run the command.
?
%0A0B000701<cr>
Receive
Please note that the Time Period Counter has
!
<cr>
Example:
&0A03<cr>
!0A<cr>
Notes about CR Magnetics Products
Data Stream
B
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
26
E-mail: [email protected]
Analog Transducers
Analog Transducers for Monitoring Current
Voltage, Power, Power Factor, and Frequency
CR Magnetics Analog Transducers provide the easy to use tools to monitor any electrical power system, power
supply, or electrical load. From simple DC to DC voltage transducers, to complex real and imaginary power
transducers, CR Magnetics has the exact input, output, and sensing technology to meet the needs of any
electrical power sensing application.
Various outputs are available which include 0-5 VDC, 0-10 VDC, 4-20 mADC.
Custom ranges include +/- 5 VDC, +/- 10 VDC and Bi-directional 4-20 mADC. Contact
factory for deatails.
CR Magnetics offers single element split core devices that can be installed without
interrupting the power system. CR Magnetics also offers monitoring solutions for 3 phase
Delta and Wye systems for connected AC power systems.
CR Magnetics has a large offering of Analog Voltage Transducers to realize all
types of voltage sensing. The CR4500 Series are True RMS devices that can
accurately measure variable frequencies and waveforms, from single element and 3 phase
systems. The CR4800 Series are Average RMS devices for measuring sinusoidal
utility based power systems. The CR5300 Series measure DC voltages. All are
available with 0-5 VDC, 0-10 VDC, 4-20 mADC.
CR Magnetics also provides Analog Power, Frequency and Power Factor
Transducers to fully measure all characteristics of AC power systems. The CR6200
Series Power Transducers can measure Active and Reactive power in single and 3 phase
systems. The CR6600 Series Frequency transducers provide a way to sense the
frequency of an AC voltage signal, and the CR6300 Series Power Factor transducers
provide a method for sensing the power factor of an AC power system.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
27
E-mail: [email protected]
C
Transducers
CR Magnetics Analog Current Transducers come in a variety of packages and
technologies for any current sensing need. The CR4100 Series current transducers
are True RMS devices for sensing non-sinusoidal AC waveforms. The CR4400 Series
Average sensing RMS units are designed to measure current derived from utility power
busses. The CR4200 Series are loop powered 2 wire transducers for average AC
sensing. CR5200 DC Current transducers are available bipolar or unipolar output
designs, and the CR5400 Series AC/DC current transducers output a waveform that
tracks the input waveform at a calibrated voltage output.
✔
CR
63
00
CR
66
00
CR
53
00
CR
54
00
CR
62
00
CR
42
10
CR
42
00
CR
44
00
CR
45
00
CR
46
00
CR
48
00
CR
52
00
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
AGENCY
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
METHOD
Transducers
✔
APPLICATION
C
AC Current
AC Voltage
AC Power
AC Power Factor
AC Frequency
3 Phase
DC Current
DC Voltage
Variable Frequency
Waveform Tracking
True RMS
Average RMS
Hall Effect
Magnetic Resonator
UL/CSA Approved
CE Approved
RoHS Compliant
CR
41
00
Selection Guide
CR ❑❑❑❑ - ❑ - ❑
41XX
421X
42XX
44XX
45XX
46XX
48XX
52XX
53XX
54XX
62XX
63XX
66XX
-
TRUE RMS CURRENT
SELF POWERED CURRENT
LOOP-POWERED CURRENT
AVERAGE RMS CURRENT
TRUE RMS VOLTAGE
LOOP POWERED VOLTAGE
AVERAGE RMS VOLTAGE
DC CURRENT
DC VOLTAGE
AC/DC CURRENT
AC POWER
POWER FACTOR
FREQUENCY
* FULL SCALE INPUT
RANGE
(CR6200
AAC only)
FULL SCALE INPUT RANGE
(all units)
XX10
XX11
XX20
XX50
XX51
XX60
XX70
XX71
XX80
-
SINGLE ELEMENT 0-5 VDC OUTPUT
SINGLE ELEMENT 0-10 VDC OUTPUT
SINGLE ELEMENT 4-20 mA OUTPUT
TWO ELEMENT 0-5 VDC OUTPUT
TWO ELEMENT 0-10 VDC OUTPUT
TWO ELEMENT 4-20 mA OUTPUT
THREE ELEMENT 0-5 VDC OUTPUT
THREE ELEMENT 0-10 VDC OUTPUT
THREE ELEMENT 4-20 mA OUTPUT
All single element current transducers are available in split
core design. Simply put an “S” at the end of the prefix
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
28
E-mail: [email protected]
Typical Applications
INDUSTRIAL APPLICATIONS FOR ELECTRICAL TRANSDUCERS
VOLTAGE MONITORING
This illustrates a typical application for monitoring the voltage
supply to a motor. The transmitter is attached to the incoming
voltage supply leads. Using the CR4600 Series for AC Voltage
Sensing, the transmitter output is attached to standard 4-20 mA,
loop-powered panel meter. The transmitter may also be attached to
a PLC to monitor for over/under voltage and phase loss.
DC CURRENT MONITORING
L1
C
L2
1
2
3
4
XXXX
9
8
7
6
5
M
+
Transducers
DC current may be monitored by using the voltage transducer
attached to a resistive shunt. The illustration shows a CR5310-.05
transducer with an input range of 0-50 mV attached to a standard
50 mV resistive shunt. The output is attached to a standard 0-5
VDC panel meter.
-
POWER TRANSDUCER
A university campus needs to monitor the power coming into each
building and record the results at a central location. The incoming
feeds are rated at 480/277, 2000 amps, 3-phase, 4-wire Y.
An ANSI Metering Class Current Transformer, part number CR170RL202, is selected from the CR Magnetics Current Transformer Catalog
Section F to convert the full-load current down to 5 Amps for input to
the transducer. The voltage legs are connected directly to the
transducer.
L2
L1
L4
L3
1
2
3
4
9
8
7
6
5
X1
+
-
H1
X1
H1
X1
H1
LOAD
LOOP-POWERED AC CURRENT TRANSMITTER
Looping the primary current-carrying wire several times through the
window opening may change the scaling factor. The “actual”
measurement range will be the nameplate rating of the transducer
divided by the number of wire passes. For example, the CR4220-30
has a nameplate rating of 0-30 AAC. Three passes of the wire through
the window opening will then provide an effective range of 0-10 AAC
(30/3).
1
2
3
4
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Web: http://www.crmagnetics.com
29
E-mail: [email protected]
9
8
7
6
5
Typical Applications
INDUSTRIAL APPLICATIONS FOR ELECTRICAL TRANSDUCERS
DC POWER MEASUREMENT
CHARGER
A plant manager needs to record the total charge to a bank of
batteries. A CR5210 DC Current Transducer is attached to one of the
incoming current lead and a CR5310 is attached to the incoming
voltage lines. The output from each transducer is attached to a 0-5
VDC analog input module on a PLC. The PLC computates the product
of the current and voltage for the total power usage.
1
2
3
4
9
8
7
6
5
1
2
3
4
9
8
7
6
5
+
-
C
Transducers
EXTERNAL CURRENT TRANSFORMERS
The transducers and transmitters may be used with an external
split-core or solid-core current transformer. The external
transformer can be used to access remote loads or where the
current-carrying wire is too large to fit through the window
opening of the unit. A standard, 5 Amp secondary, commercial
grade current transformer would be attached with the secondary
leads threaded through the window opening. A transducer or
transmitter with a 0-5 Amp input range would be selected.
Request CR Magnetics Current Transformer Catalog Section F.
OVER/UNDER CURRENT MONITORING
This illustrates a typical application for monitoring current to a 3Phase motor. External current transformers attached to each of the
three incoming power lines. The secondary leads from each current
transformer are routed through the window openings in the CR4170
True RMS Current Transducer. A standard 5 Amp secondary current
transformer is recommended to be attached to a transducer rated for
5 Amp input. With the transducer attached to a PLC the over/under
current and phase loss conditions can be monitored.
L1
L2
L3
1
2
3
4
M
9
8
7
6
5
+
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
30
E-mail: [email protected]
-
AC MOTOR LOAD CHART
AC MOTOR LOAD CHART
MAXIMUM LOCKED ROTOR CURRENTS
MOTOR FULL LOAD CURRENTS
SINGLE
PHASE
230V
4.9
6.9
8
10
12
17
28
40
50
115V
4
5.6
7.2
10.4
13.6
200V 230V 460V
2.3
2
1
3.2
2.8
1.4
4.15
3.6
1.8
6
5.2
2.6
7.8
6.8
3.4
11
9.6
4.8
17.5
15.2
7.6
25
22
11
32
28
14
48
42
21
62
54
27
78
68
34
92
80
40
120
104
52
150
130
65
177
154
77
221
192
96
285
248
124
358
312
156
415
360
180
550
480
240
2.75
2.40
1.20
575V
.8
1.1
1.4
2.1
2.7
3.9
6.1
9
11
17
22
27
32
41
52
62
77
99
125
144
192
3 PHASE A.C. INDUCTION
2300V
4160V
16
20
26
31
37
49
.96
8.9
11
14.4
17
20.5
27
.24
200V 220/230V 440/460V 550/575V 2300V 4160V
23
20
10
8
29
34.5
46
57.5
73.5
106
146
186
267
334
420
500
667
834
1000
1250
1670
2085
2500
3340
25
30
40
50
64
92
127
162
232
290
365
435
580
725
870
1085
1450
1815
2170
2900
12.5
15
20
25
32
46
63
81
116
145
182
217
290
362
435
592
725
907
1085
1450
10
12
16
20
25
37
51
65
93
116
146
174
232
290
348
435
580
726
870
1160
1.33
*This information provided as reference only. Consult motor manufacturer and related standards for additional information.
U.S. Standard Voltages
SINGLE-PHASE
POLYPHASE
A
A
A
LINE
N GROUND
B LINE
240 (480)
120 (240) [480]
120 (240)
240 (480)
B
208 (416)
B
120 (240)
120 (240) [480]
240 (480)
120 (240)
240/120 V, 4 W (480/240 V, 4 W)
THREE-PHASE, FOUR-WIRE DELTA
120 V, 3 W (240 V, 3 W) [480 V, 3 W]
THREE-PHASE, THREE-WIRE
LINE
A
GROUND
120 (277)
B
120 (240) [480]
N
N
120 (240) [480]
120 (240)
120/240 V, 3 W (240/480 V, 3 W)
THREE-WIRE
A
C
C
208 (480)
208 (480)
120 (277)
208 (480)
N
120 V, 2 W (240 V, 2 W) [480 V, 2 W]
TWO-WIRE
120 (277)
C
208Y/120 V, 4 W (480Y/277 V, 4 W)
THREE-PHASE, FOUR-WIRE WYE
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
31
E-mail: [email protected]
35
41
55
69
83
104
139
173
208
278
19
23
30
38
46
57
76
96
115
153
C
Transducers
HP 115V
1/2
9.8
3/4
13.8
1
16
1.5
20
2
24
3
34
5
56
7.5
80
10
100
15
20
25
30
40
50
60
75
100
125
150
200
OVER
200HP
APPROX.
AMPS/HP
3-PHASE A.C. INDUCTION
True RMS AC Current Transducer
The CR4100 Series True RMS Current Transducers and
Transmitters are designed for applications where AC
current waveforms are not purely sinusoidal. More
precise and accurate than other transducers, these
devices are ideal in chopped wave and phase fired
control systems.
DIN RAIL / PANEL MOUNT, TRUE RMS
Applications
Phase fired controlled heaters
Quickly varying motor loads
Chopped wave form drivers
Harmonic currents
CR4110 CR4120
CR4111
Single Element - 0.79” Window
0.5 to 150 AAC Input Range
Features
35mm DIN Rail or Panel Mount
Available with 0-5 VDC, 0-10 VDC, 4-20 mADC output
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
Transducers
C
Regulatory Agencies
CR4150
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4160
Two Element - 0 .26” Window
0.5 to 30 AAC Input Range
E199795
Use a 5 Amp Secondary
Current Transformer to extend
the ranges of all CR Magnetics
Current Transducers
CR4170
CR4180
Three Element - 0.26” Window
0.5 to 30 AAC Input Range
Add suffix for input range
PART NUMBERS
-
Single element with 0 - 5 VDC output (split core design)
Single element with 0 - 10 VDC output (split core design)
Single element with 4 - 20 mADC output (split core design)
Two element with 0 - 5 VDC output **
Two element with 4 to 20 mADC output **
Three element with 0 - 5 VDC output **
Three element with 4 - 20 mADC output **
*Two and three element transducers are available only in ranges of 0.5 to 30 AAC
CR4110(S)
CR4111(S)
CR4120(S)
CR4150
CR4160
CR4170
CR4180
All single phase current
transducers are available in split
core design. Simply put an “S” at
the end of the prefix*
I.E. CR4110S-10
* Not UL Recognized
5
10
15
20
25
30
40
50
75
100
150
-
0- 5 AAC **
0-10 AAC **
0-15 AAC **
0-20 AAC **
0-25 AAC **
0-30 AAC **
0-40 AAC
0-50 AAC
0-75 AAC
0-100 AAC
0-150 AAC
Ranges available up to and including
600 AAC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
32
E-mail: [email protected]
True RMS AC Current Transducer
DIN RAIL / PANEL MOUNT, TRUE RMS
SPECIFICATIONS
Basic Accuracy:............................... 0.5%
Response Time:.............
Linearity:......................................... 10% to 100% FS
Calibration:..................................... True RMS Sensing
31°C
Thermal Drift:.................................. 500 PPM/°C
Operating Temperature:.................
Installation Category:....................
Weight:.............................0.5 lbs.
CAT II
Supply Current:
2
Altitude:.........................................
2000 meter max.
Frequency Range:.........
CR4110/11......................Typical 15mA
2500 VDC
Cleaning:........................
Supply Voltage:..............
Output Load:..................
Max 25mA
CR4120...........................Typical 25mA
Max 40mA
CR4150...........................Typical 25mA
20 Hz - 5 KHz
MTBF:............................
and decreasing linearly to 50% at 40°C
Torque Specs.:................ 3.0 inch lbs. (0.4Nm)
0°C to +60°C
Pollution Degree:...........................
Insulation Voltage:........................
250 ms max. 0-90%
FS Relative Humidity:.......80% for temperatures up to
Max 75mA
CR4160...........................Typical 40mA
Greater than 100 K hours
Max 70mA
CR4170...........................Typical 20mA
Water-dampened cloth
Max 60mA
CR4180...........................Typical 55mA
24 VDC ± 10%
Max 110mA
CR4110S.........................Typical 15mA
4-20 mADC - 0 to 300
0-5 VDC - 2K Ω or Greater
C
Max 25mA
CR4120S.........................Typical 25mA
Max 40mA
(36)
0.14
(3.5)
1
2
3
4
1
2
9
3
8
4
7
6
1.06
(26.8)
OUTPUT
+
+
1
2
3
4
+
9
8
7
6
5
OUTPUT
+
6
5
-
3.5)
-
9
8
7
SUPPLY
SUPPLY
5
2.874
(73)
2.874
(73)
0.79 1.22
(20) (31)
CR4110 One Element 0 - 5 VDC Output
CR4111 One Element 0 - 10 VDC Output
0.79 1.22 Split core
(20) (31) DIA.
9
8
7
6
5
2.99 3.86 Split core
(76) (98)
+
OUTPUT 1
OUTPUT 2
-
OUTPUT 2
1
2
9
3
4
7
+
+
6
+
-
-
OUTPUT 1
8
-
5
SUPPLY
L1
SUPPLY
L2
L2
L1
CR4150 Two Element 0 - 5 VDC Output
3.268
(83)
1 hole: 0.79(20) Dia. for CR4110, CR4111& 4120 (shown)
2 holes: 0.26(6.5) Dia. for CR4150 & 4160
3 holes: 0.26(6.5) Dia. for CR4170 & 4180
CR4160 Two Element 4 - 20 mADC Output
+
OUTPUT 3
1
2
3
4
9
8
7
6
5
L1
L2
L3
+
OUTPUT 2
+
OUTPUT 1
+
1.42
+
1
2
3
4
9
8
7
6
5
SUPPLY
CR4170 Three Element 0 - 5 VDC Output
L1
L2
L3
OUTPUT 3
+
-
OUTPUT 2
+
+
-
OUTPUT 1
-
SUPPLY
CR4180 Three Element 4 - 20 mADC Output
CONNECTION DIAGRAM
(36)
OUTLINE DRAWING
-
+
+
1
2
3
4
0.20
(5.1)
CR4120 One Element 4 - 20 mADC Output
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the
operator. The switch or circuit breaker shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
33
E-mail: [email protected]
Transducers
1.42
Self Powered AC Current Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
The CR4210 and CR4211 Series Current Transducers
are self powered. These transducers are calibrated to
provide a 0-5 VDC and 0-10 VDC signal that is
proportional to the average RMS input AC current.
Designed for multi-point current sensing, these devices
provide excellent features in a high value package.
Applications
Multi-point current sensing and control panels
Remote current sensing
Monitor motor faults
Monitor heating elements
Monitor lighting elements
CR4210 CR4211
Transducers
C
Features
Single Element - .79” Window
2 to 200 AAC Input Range
35mm DIN Rail or Panel Mount
Available with 0 - 5 VDC or 0-10 VDC outputs
Self powered, requires no external power source
Use with external current transformers
Low cost
Connection diagram printed on case
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4210S CR4211S
Single Element - 1.22” Window
2 to 200 AAC Input Range
E199795
All single phase current transducers are
available in split core design. Simply put
an “S” at the end of the prefix*
I.E. CR4210S-10
* Not UL Recognized
Average 3 Phase Sensing
PART NUMBERS
-
Single element with 0 - 5 VDC output (split core design)
Single element with 0 - 10 VDC output (split core design)*
*CR4210S and CR4211S only available in ranges 20 amps and above
CR4210(S)
CR4211(S)
Add suffix for input range
2
5
10
20
50
70
100
150
200
-
0-2 AAC
0-5 AAC
0-10 AAC
0-20 AAC
0-50 AAC
0-70 AAC
0-100 AAC
0-150 AAC
0-200 AAC
Ranges available up to and including
600 AAC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
34
E-mail: [email protected]
Self Powered AC Current Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:.............................. 0.5%
Cleaning:........................
Thermal Drift:.................................. 500 PPM/°C
Response Time:.............
Linearity:......................................... 10% to 100% FS
Operating Temperature:.................
0°C to +60°C
CAT II
Pollution Degree:...........................
2
Altitude:.........................................
2000 meter max.
Vibration Tested To:........................IEC 60068-2-6,1995
Frequency Range:.........................
250 ms max., 0-90%FS
Relative Humidity:..........
Installation Category:....................
Insulation Voltage:........................
Water-dampened cloth
1M Ω or Greater
Output Load:..................
2500 VDC
50Hz - 400Hz
Calibration:..............Average Sensing, RMS Calibrated
MTBF:....................................Greater than 100 K Hours
80% for temperatures up to
31°C
and decreasing linearly to
50% at 40°C
Supply Power:................
Self powered (output voltage is
obtained from current-sensing
conductor)
Torque Specs.:................
3.0 inch lbs. (0.4Nm)
Weight:............................
0.5 lbs.
C
OUTLINE DRAWING
(36)
Transducers
0.14
(3.5)
1
2
9
3
8
4
7
1.06
(26.8)
6
5
2.874
(73)
2.874
(73)
0.79 1.22
0.79 1.22 Split core
(20) (31) DIA.
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
1.42
3.268
(83)
(36)
1 hole: 0.79(20) Dia. for CR4210 & 4211 (shown)
CONNECTION DIAGRAM
1
Request CR Magnetics Low & Medium Voltage
Current Transformers Catalog.
2
3
4
9
8
7
6
5
+
OUTPUT 1
-
CR4210 Single Element 0 - 5 VDC Output
CR4211 Single Element 0 - 10 VDC Output
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
35
E-mail: [email protected]
Loop-Powered AC Current Transmitter
DIN RAIL / PANEL MOUNT, AVERAGE RMS
The CR4200 Series, Current Transmitters produce a calibrated
4-20 mADC signal that is proportional to the average RMS
input AC current. Designed for multi-point current sensing,
these devices provide excellent features in a high value
package. The output signal is generated from a user supplied
24 VDC power supply within the output current loop.
Applications
Multi-point current sensing and control panels
Remote current sensing
Monitor motor faults
Monitor heating elements
Monitor lighting elements
CR4220
Transducers
C
Features
Single Element - .79” Window
0.5 to 50 AAC Input Range
Relatively low cost
35mm DIN rail or panel mount
High Accuracy
Easy wiring
Interfaces with most commercially available instrumentation
Connection diagram printed on case
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4260
Two Element - .26” Window
0.5 to 30 AAC Input Range
E199795
All single phase current transducers are
available in split core design. Simply put an
“S” at the end of the prefix*
I.E. CR4220S-10
* Not UL Recognized
CR Magnetics has a wide selection of current transformers to
extend the range of any part. Contact factory for more
information.
Add suffix for input range
PART NUMBERS
CR4220(S)
CR4260
-
Single element with 4 - 20 mADC output (split core design)
Two element with 4 - 20 mADC output*
*Two element transducers are only available in ranges of 0.5 to 30 AAC
5
10
15
20
25
30
40
50
-
0- 5 AAC
0-10 AAC
0-15 AAC
0-20 AAC
0-25 AAC
0-30 AAC
0-40 AAC
0-50 AAC
Ranges available up to and
including 600 AAC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
36
E-mail: [email protected]
Loop-Powered AC Current Transmitter
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:.............................
Linearity:........................................
Thermal Drift:.................................
Operating Temperature:.................
0.5%
MTBF:...........................
10% to 100% FS
HoursCleaning:.............
500 PPM/°C
Output Load:..................
0°C to +60°C
Installation Category:.....................
CAT II
Pollution Degree:...........................
2
Altitude:.........................................
2000 meter max.
Frequency Range:........................
Water-dampened cloth
Response Time:.............
Relative Humidity:..........
Vibration Tested To:.......................IEC 60068-2-6,1995
Insulation Voltage:.........................
Greater than 100 K
2500 VDC
Supply Power:................
Compliance Voltage:......
20Hz - 4KHz
Torque Specs.:................
Calibration:.............Average Sensing, RMS Calibrated
Weight:............................
1M Ω or Greater
250 ms max., 0-90%FS
80% for temperatures up to
31°C
and decreasing linearly to
50% at 40°C
Loop Voltage 24 Vdc
16 to 28 Vdc
3.0 inch lbs. (0.4Nm)
0.5 lbs.
C
(36)
0.14
(3.5)
9
8
4
7
6
1.06
(26.8)
3.5)
2.874
(73)
2.874
(73)
0.79 1.22
(20) (31
1
2
3
4
OUTPUT 1
9
8
7
6
5
3
4
5
-
+
-
+
1
2
Vdc
+
9
8
7
6
5
L1
+
OUTPUT 2
Vdc
-
+
OUTPUT 1
+ Vdc
-
-
L2
0.79 1.22 Split core
(20) (31) DIA.
CR4220
One Element - 4 - 20 mADC Output
CR4260
Two Element 4 - 20 mADC Output
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
-
+
1
2
3
4
3.268
(83)
OUTPUT 1
9
8
7
6
5
1 hole: 0.79(20) Dia. for CR4220 (shown)
2 holes: 0.26(6.5) Dia. for CR4260
+
9
8
7
6
5
+
+
+
OUTPUT 2
OUTPUT 1
-
Vdc
CR4260
Two Element with external
current transformer *
CR4220
One Element with external
current transformer *
1.42
Vdc
-
+
1
2
3
4
*Request CR Magnetics Low & Medium Voltage Current Transformers Catalog.
(36)
OUTLINE DRAWING
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
37
E-mail: [email protected]
Transducers
1
2
3
-
Average RMS AC Current Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
The CR4400 Series, Current Transmitters produce a calibrated
4-20 mADC signal that is proportional to the average RMS
input AC current. Designed for multi-point current sensing,
these devices provide excellent features in a high value
package. The output signal is generated from a user supplied
24 VDC power supply within the output current loop.
Applications
Multi-point current sensing and control panels
Monitor motor faults
Monitor heating elements
Monitor lighting elements
Single Element - .79" Window
0.5 to 150 AAC Input Range
Features
Low cost
DIN rail or panel mount
Available with 0-5 VDC, 0-10VDC or 4-20 mADC output
High Accuracy
Interfaces with most commercially available instrumentation
Connection diagram printed on case
Transducers
C
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4450 CR4460
Two Element - .26" Window
0.5 to 30 AAC Input Range
E199795
CR4470 CR4480
Three Element - .26" Window
0.5 to 30 AAC Input Range
Use a 5 Amp Secondary
Current Transformer to extend
the ranges of all CR Magnetics
Current Transducers
All single phase current
transducers are available in split
core design. Simply put an “S” at
the end of the prefix*
I.E. CR4410S-10
* Not UL Recognized
Add suffix for input range
PART NUMBERS
CR4410(S)
CR4411(S)
CR4420(S)
CR4450
CR4460
CR4470
CR4480
-
Single element with 0 - 5 VDC output (split core design)
Single element with 0 - 10 VDC output (split core design)*
Single element with 4 - 20 mADC output (split core design)
Two element with 0 - 5 VDC output *
Two element with 4 to 20 mADC output *
Three element with 0 - 5 VDC output *
Three element with 4 - 20 mADC output *
Two and three element transducers are available only in ranges of 0.5 to 30 AAC
* CR4411 Series not UL Recognized
5
10
15
20
25
30
40
50
75
100
150
-
0-5 AAC
0-10 AAC
0-15 AAC
0-20 AAC
0-25 AAC
0-30 AAC
0-40 AAC
0-50 AAC
0-75 AAC
0-100 AAC
0-150 AAC
Ranges available up to and
including 600 AAC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
38
E-mail: [email protected]
Average RMS AC Current Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:.....................
0.5%
Thermal Drift:.........................
500 PPM/°C
Installation Category:............
CAT II
Linearity:................................
Relative Humidity:................80% for temperatures up
10% to 100% FS
Operating Temperature:.........
to 31°C and decreasing
linearly to 50% at 40°C
0°C to +60°C
Vibration Tested To:...............
Supply Voltage:....................24 VDC ±10%
Supply Current:
IEC 60068-2-6,1995
Pollution Degree:....................
2
MTBF:....................................
Greater than 100 K hours
Response Time:.....................
Calibration:...............
2000 meter max.
Average Sensing, RMS Calibrated
Insulation Voltage:.................
2500 VDC
Power Source:.......................
1
2
9
3
8
4
7
6
1.06
(26.8)
1
2
3
4
9
8
7
6
5
2.874
(73)
3.5)
Max -----mA
0.79 1.22
(20) (31)
0.79 1.22 Split core
(20) (31) DIA.
+
OUTPUT
+
6
5
-
CR4420 One Element 4 - 20 mADC Output
9
8
7
6
5
L1
+
OUTPUT 1
OUTPUT 2
1
OUTPUT 2
-
2
9
3
4
8
+
OUTPUT 1
7
+
6
+
-
5
-
SUPPLY
SUPPLY
L2
L2
L1
CR4460 Two Element 4 - 20 mADC Output
CR4450 Two Element 0 - 5 VDC Output
1 hole: 0.79(20) Dia. for CR4410 & 4420 (shown)
2 holes: 0.26(6.5) Dia. for CR4450 & 4460
3 holes: 0.26(6.5) Dia. for CR4470 & 4480
-
+
+
1
2
3
4
SUPPLY
CR4410 One Element 0 - 5 VDC Output
CR4411 One Element 0 - 10 VDC Output
3.268
(83)
+
OUTPUT 3
1
2
3
4
9
8
7
6
5
L1
C
-
9
8
7
SUPPLY
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
Max -----mA
+
1
2
3
4
+
OUTPUT
-
5
2.874
(73)
Max 120mA
Weight:.............................0.5 lbs.
Water-dampened cloth
0.14
(3.5)
Max 110mA
CR4480................................Typical 55mA
L2
L3
+
OUTPUT 2
+
OUTPUT 1
+
+
1
2
3
4
9
8
7
6
5
SUPPLY
CR4470 Three Element 0 - 5 VDC Output
L1
OUTPUT 3
+
-
OUTPUT 2
+
+
L3
OUTPUT 1
-
SUPPLY
CR4480 L 2 Three Element 4 - 20 mADC Output
*Request CR Magnetics Low & Medium Voltage Current Transformers Catalog.
1.42
CONNECTION DIAGRAM
(36)
OUTLINE DRAWING
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
39
E-mail: [email protected]
-
Transducers
(36)
Max 90mA
CR4470................................Typical 25mA
Torque Specs.:................ 3.0 inch lbs. (0.4Nm)
2K Ω or greater
Cleaning:...............................
Max 75mA
CR4460................................Typical 40mA
CR4420S..............................Typical ---mA
50Hz - 400Hz
Output Load:..........................
CR4450................................Typical 20mA
Max 45mA
CR4410S..............................Typical ---mA
24 VDC
Frequency Range:.................
Max 40mA
CR4420................................Typical 25mA
250 ms max., 0-90% FS
Altitude:..................................
CR4410/11...........................Typical 20mA
True RMS AC Voltage Transducer
DIN RAIL / PANEL MOUNT, TRUE RMS
The CR4500 Series, True RMS Voltage Transducers and
Transmitters are designed for applications where AC voltage
waveforms are not purely sinusoidal. More precise and
accurate than other devices, these units are ideal in chopped
wave and phase fired control systems.
Applications
Phase fired controlled devices
Quickly varying voltage supplies
Chopped waveform drivers
Harmonic voltages
Features
35mm DIN rail mount or panel mount
Available with 0-5 VDC, 0-10VDC or 4-20 mADC output
24 VDC powered
Highest precision available
Outputs isolated from inputs
Connection diagram printed on case
CR4510 CR4511 CR4520
Transducers
C
Single Element
50 to 500 VAC Input Range
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4550
CR4570
CR4560
CR4580
E199795
Three Element
50 to 500 VAC Input Range
Add suffix for input range
PART NUMBERS
CR4510
CR4511
CR4520
CR4550
CR4560
CR4570
CR4580
-
Single element with 0 - 5 VDC output
Single element with 0 - 10 VDC output
Single element with 4 - 20 mADC output
3-Phase 3-Wire with 0 to 5 VDC Output
3-Phase 3-Wire with 4 - 20 mADC Output
3-Phase 4-Wire with 0 to 5 VDC Output
3-Phase 4-Wire with 4 - 20 mADC Output
50
150
250
500
-
0-50 VAC
0-150 VAC
0-250 VAC
0-500 VAC
Ranges available up to and
including 600 VAC
* UL Recognized up to 300 Vac
CR Magnetics has a wide selection of Potential Transformers to extend the range of any part. Contact factory for more information.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
40
E-mail: [email protected]
True RMS AC Voltage Transducer
DIN RAIL / PANEL MOUNT, TRUE RMS
SPECIFICATIONS
Basic Accuracy:........................
Linearity:................................
Calibration:...............................
Thermal Drift:...........................
Operating Temperature:...........
Installation Category:...............
Vibration Tested To:.................
Pollution Degree:.....................
Response Time:.......................
0.5%
10% to 100% FS
True RMS Sensing
500 PPM/°C
0°C to +60°C
Water-dampened cloth
2500 Vdc
20 Hz - 5 KHz
1
9
7
6
Max 25mA
CR4550/70:................... Typical 20mA
Max 60mA
CR4560/80:................... Typical 55mA
1.06
(26.8)
Max 110mA
C
Weight:.......................... 0.5 lbs.
9
8
7
6
5
3.5)
+
1
2
3
4
INPUT 1
OUTPUT 1
-
+
9
8
7
6
5
-
OUTPUT
SUPPLY
CR4520 Single Phase - 4 - 20 mADC Output
CR4510 Single Phase - 0 - 5 VDC Output
CR4511 Single Phase - 0 - 10 VDC Output
0.79 1.22
(20) (31)
-
+
SUPPLY
5
2.874
(73)
Max 40mA
Torque Specs.:.............. 3.0 inch lbs. (0.4Nm)
1
2
3
4
INPUT 1
8
CR4510:........................ Typical 15mA
(73)
L1
L2
L3
L1
L3-L1
1
2
L3
L2-L3
9
8
7
6
3
4
-
+
5
L3-L1
1
2
L1-L2
L1-L2
-
+
5
2.20 (56)
CR4510/11/20
(56) for CR4620
2.20
(76) for CR4640
2.99
2.99 (76)
CR4550/60/70/80
SUPPLY
SUPPLY
CR4560 3 Phase, 3 Wire - 4-20 mADC Output
CR4550 3 Phase, 3 Wire - 0 - 5 VDC Output
0.20
(5.1)
L2
L2-L3
9
8
7
6
3
4
3.268
(83)
L1
Dimensions for Models CR4550, CR4560, CR4570, CR4580
(shown)
L2
L3
N
1
2
3
4
L3-N
9
8
7
6
5
L2-N
L1-N
+
L1
L2
L3
N
+
1
2
3
4
-
9
8
7
6
5
SUPPLY
CR4570 3 Phase, 4 Wire - 0 - 5 VDC Output
1.42
(36)
+
L3-N
L2-N
+
L1-N
+
-
SUPPLY
CR4580 3 Phase, 4 Wire - 4 - 20 mADC Output
USE CR MAGNETICS LOW AND MEDIUM VOLTAGE POTENTIAL TRANSFORMERS
(SECTION G)
OUTLINE DRAWING
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
41
E-mail: [email protected]
Transducers
0.14
(3.5)
4
and decreasing linearly to
50% at 40°C
CR4520:........................ Typical 25mA
Cleaning:..................................
2
Relative Humidity:......... 80% for temperatures up to
250 ms
24 Vdc ±10%
3
4-20 mADC - 0 to 300
Supply Current:
Supply Voltage:........................
(36)
0-5 VDC - 2 K Ω or greater
IEC 60068-2-6,1995
2
2000 meter max.
Frequency Range:...................
Greater than 100 K hours
Output Load:...............
31°C
CAT II
Altitude:....................................
Insulation Voltage:....................
MTBF:.........................
Loop-Powered AC Voltage Transmitter
DIN RAIL / PANEL MOUNT, AVERAGE RMS
The CR4600 Series, Loop-Powered AC Voltage Transmitters
are designed to provide a 4 - 20 mADC output that is
proportional to the average RMS AC voltage input. These
devices are best suited for general applications, such as fixed
frequency voltage supplies.
Applications
Monitor for over/under voltage
Sense phase loss
Power monitoring
Multi-point instrumentation needs
Features
CR4620
35mm DIN Rail or Panel Mount
Outputs isolated from inputs
One or two element
Connection diagram printed on case
Single Element Transmitter
50 to 500 VAC Input Range
C
Transducers
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
E199795
CR4640
Two Element Transmitter
50 to 500 VAC Input Range
SINGLE PHASE
CENTER TAP
RESIDENTIAL
CR Magnetics has a wide selection of Potential
Transformers to extend the range of any part.
Contact factory for more information.
CR4640
TYPICAL APPICATION
RESIDENTIAL POWER
Add suffix for input range
50
150
250
500
PART NUMBERS
CR4620
CR4640
-
Single element with 4 - 20 mADC output
Two element with 4 - 20 mADC output
-
0-50 VAC
0-150 VAC
0-250 VAC
0-500 VAC *
Ranges available up to and including
600 VAC
* UL Recognized up to 300 Vac
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
42
E-mail: [email protected]
Loop-Powered AC Voltage Transmitter
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:........................
0.5%
Cleaning:..................
Water-dampened cloth
Thermal Drift:............................
500 PPM/°C
Frequency Range:....
50 Hz - 400 Hz
Installation Category:................
CAT II
Calibration:...........
Average Sensing, RMS Calibrated
Operating Temperature:............
Vibration Tested To:..................
0°C to + 60°C
Typical Load:.............
Relative Humidity:.....
IEC 60068-2-6,1995
Pollution Degree:....................... 2
Response Time: ......................
Altitude:.....................................
Insulation Voltage:....................
MTBF:.......................
Greater than 100 K hours
0 - 300 Ω @ 24 VDC
80% for temperatures up to
31°C and decreasing linearly to
50% at 40°C
250 ms
Torque Specs.:........... 3.0 inch lbs. (0.4Nm)
2000 meter max.
Weight:....................... 0.5 lbs.
2500 VDC
Supply Voltage:.................Loop Powered 24 Vdc ±10%
(36)
0.14
(3.5)
1
9
8
4
7
OUTPUT 1
9
8
7
6
5
1.06
(26.8)
+
6
5
2.874
(73)
-
SUPPLY
One Element4 - 20 mADC Output
CR4620
0.79 1.2
(20) (31
+
1
2
3
4
INPUT 1
Vdc
+
9
8
7
6
5
INPUT 2
+
Vdc
+
-
OUTPUT 2
-
OUTPUT 1
-
SUPPLY
1.16
(29.5)
0.20
(5.1)
Two Element 4 - 20 mADC Output
CR4640
3.268
(83)
-
+
1
2
3
4
INPUT 1
OUTPUT 1
9
8
7
6
5
+
Vdc
-
SUPPLY
CR4620 One Element with External Voltage
Transformers * *
+
1
2
3
4
INPUT 1
INPUT 2
9
8
7
6
5
Vdc
+ - +
Vdc
+
OUTPUT 2
OUTPUT 1
-
-
-
SUPPLY
CR4640 Two Element with External Voltage
Transformers * *
1.42
(36)
OUTLINE DRAWING
CONNECTION DIAGRAM
* * USE CR MAGNETICS LOW AND MEDIUM VOLTAGE POTENTIAL TRANSFORMERS (SECTION G)
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit
breaker shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
43
E-mail: [email protected]
Transducers
2
3
C
-
+
1
2
3
4
INPUT 1
Average RMS AC Voltage Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
The CR4800 Series, Average RMS Voltage Transducers and
Transmitters are designed to provide a DC output proportional
to the AC voltage input. These devices are best suited for
general applications, such as fixed frequency voltage supplies.
Applications
Monitor Motor Faults
Monitor Heating Elements
Monitor Lighting Elements
Remote Voltage Sensing
CR4810
Transducers
C
CR4811
CR4820
Single Element
0 to 5 VDC Output or 4 - 20 mADC outputs
Features
35mm DIN Rail or Panel Mount
Available with 0-5 Vdc, 0-10Vdc or 4-20 mADC outputs
24 Vdc powered
Outputs isolated from inputs
Connection diagram printed on case
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR4850
CR4860
CR4870
CR4880
E199795
Three Element
0 to 5 VDC or 4 - 20 mADC outputs
Add suffix for input range
PART NUMBERS
CR4810
CR4811
CR4820
CR4850
CR4860
CR4870
CR4880
-
Single Element with 0 - 5 VDC output
Single Element with 0 - 10 VDC output*
Single Element with 4 - 20 mADC output
3-Element 3-Wire with 0 to 5 VDC Output
3-Element 3-Wire with 4 - 20 mADC Output
3-Element 4-Wire with 0 to 5 VDC Output
3-Element 4-Wire with 4 - 20 mADC Output
50
150
250
500
-
0-50
0-150
0-250
0-500
VAC
VAC
VAC
VAC
Ranges available up to and including
600 VAC
* UL Recognized up to 300 Vac
* CR4811 Series not UL Recognized
CR Magnetics has a wide selection of Potential Transformersto extend the range of any part. See Section G for details.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
44
E-mail: [email protected]
Average RMS AC Voltage Transducer
DIN RAIL / PANEL MOUNT, AVERAGE RMS
SPECIFICATIONS
Basic Accuracy:........................
Linearity:...................................
0.5%
Output Load:......0-5 VDC................
10% to 100% FS
4-20 mADC...........
Calibration:................Average Sensing, RMS Calibrated
Thermal Drift:...........................
500 PPM/°C
Installation Category:...............
CAT II
Operating Temperature:...........
Vibration Tested To:.................
31°C
Altitude:...................................
2000 meter max.
Response Time:......................
Insulation Voltage:...................
Supply Voltage:.......................
Frequency Range:..................
Cleaning:................................
Typical 15mA
Max 30mA
CR4850:.....................
Typical 25mA
Max 110mA
Typical 23mA
CR4860:.....................
2500 Vdc
24 Vdc ±10%
Max 110mA
Typical 55mA
Torque Specs.:...........
Water-dampened cloth
Max 110mA
Typical 25mA
CR4880:.....................
20 Hz - 400 Hz
Max 45mA
Typical 55mA
CR4870:.....................
Max 110mA
0.5 lbs.
Transducers
0.14
(3.5)
1
2
9
3
8
4
7
1.06
(26.8)
1
2
3
4
INPUT 1
6
5
2.874
(73)
9
8
7
6
5
3.5)
+
OUTPUT
SUPPLY
CR4820 Single Element - 4-20 mA DC
Output
CR4810 Single Element - 0 - 5 VDC Output
L1
L1
L2
2.20 (56) for CR4620
2.99 (76) for CR4640
L3
+
1
2
3
4
L3-L1
L2-L3
9
8
7
6
3
4
2.20 (56) CR4810/11/20
2.99 (76)
CR4850/60/70/80
L2
L3
1
2
L1-L2
+
L1
L2
L3
N
L2-N
L1-N
+
L2
L3
N
+
1
2
3
4
-
9
8
7
6
5
+
L3-N
L2-N
+
L1-N
+
-
SUPPLY
SUPPLY
CR4870 3 Element, 4 Wire - 0 - 5 VDC Output
-
-
+
CR4860 3 Element, 3 Wire - 4-20 mA DC Output
L1
L3-N
9
8
7
6
5
-
L1-L2
SUPPLY
CR4850 3 Element, 3 Wire - 0 - 5 VDC Output
1
2
3
4
1.42
L2-L3
SUPPLY
3.268
(83)
-
L3-L1
+
9
8
7
6
5
-
+
5
-
+
SUPPLY
0.79 1.22
(20) (31)
Dimensions for Models CR4850, 4860, 4870, 4880
(shown)
-
+
9
8
7
6
5
-
(73)
0.20
(5.1)
1
2
3
4
INPUT 1
OUTPUT 1
C
3.0 inch lbs. (0.4Nm)
Weight:.......................
MTBF:....................................Greater than 100 K hours
(36)
CR4810:.....................
CR4820:.....................
250 ms
and decreasing linearly
to 50% at 40°C
Supply Current:
IEC 60068-2-6,1995
2
0 - 300 Ω
Relative Humidity:....... 80% for temperatures up to
0°C to +60°C
Pollution Degree:.....................
2 K Ω or greater
CR4880 3 Element, 4 Wire - 4 - 20 mA DC Output
USE CR MAGNETICS LOW AND MEDIUM VOLTAGE POTENTIAL TRANSFORMERS (SECTION G)
(36)
OUTLINE DRAWING
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
45
E-mail: [email protected]
DC Current Transducer
DIN RAIL / PANEL MOUNT, RMS
The CR5200 Series, DC Current Transducers are designed to
provide a DC signal which is proportional to a DC sensed
current. These devices are designed for direct current only,
targeting them towards general and daily applications. The
ranges 2 to 10 Amp utilize an advanced Magnetic Modulator
technology and the ranges 20 amps and above utilize Hall
Effect technology.
Applications
CR5210
Transducers
C
CR5211
Battery chargers and systems
DC motor drives
Power supply management
Mobile applications
CR5220
Features
Single Element - .79” Window
2 to 300 ADC Input Range
Closed loop sensing for accuracy
35mm DIN rail or panel mount
Available with ±5 VDC, ±10 VDC or 4 - 20 mADC outputs
Non-contact DC current sensing
Connection diagram printed on case
Regulatory Agencies
Constructed to meet UL 61010B-1
Constructed to meet CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR5210S
CR5211S
CR5220S
Single Element - 1.2” Window
20 to 300 ADC Input Range
Contact Factory for Custom ±5 VDC, ±10 VDC
or 4 - 20 mADC Output Options
All single phase current transducers are available in split
core design. Simply put an “S” at the end of the prefix*
I.E. CR5210S-30
Add suffix for input range
PART NUMBERS
CR5210(S)
CR5211(S)
CR5220(S)
-
Single Element with 5 VDC output (split core design)
Single Element with 10 VDC output (split core design)
Single Element with 4 - 20 mADC output (split core design)
NOTE: DC Split Core Transducers Available in 20 Amps and Higher
NOTE: CR5200 Series is available with 12V Power Supply. Use same application as 24V Power Supply.
Example Part Number: CR5210-300-12V
2
5
10
20
30
50
75
100
150
300
-
0-2 ADC
0-5 ADC
0-10 ADC
0-20 ADC
0-30 ADC
0-50 ADC
0-75 ADC
0-100 ADC
0-150 ADC
0-300 ADC
Ranges available up to and
including 600 ADC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
46
E-mail: [email protected]
DC Current Transducer
DIN RAIL / PANEL MOUNT, RMS
SPECIFICATIONS
Basic Accuracy:........................
1.0 %
Linearity:...................................
10% to 100% FS
Operating Temperature:............
0°C to +50°C
Thermal Drift:............................
Installation Category:................
500 PPM/°C
CAT II
MTBF:.........................
2
Altitude:...................................
2000 meter max.
Response Time: .....................
Response Time: .....................
Insulation Voltage:...................
Supply Voltage:.......................
Frequency Range:..................
Cleaning:................................
250 ms. max.,0-90% FS
2500 VDC
24 VDC ±10%
DC Only
Water-dampened cloth
CR5210:....................
Typical 35mA
Max 40mA
CR5220:....................
Typical 60mA
Max 100mA
CR5210S:..................
CR5220S:..................
Torque Specs.:...........
Weight:.......................
9
8
4
3.5)
7
1.06
(26.8)
1
2
3
4
6
5
2.874
(73)
2.874
(73)
0.79 1.22 Sp
(20) (31) D
Max 35mA
Typical 40mA
Max 50mA
3.0 inch lbs. (0.4Nm)
0.5 lbs.
C
+
9
8
7
6
5
OUTPUT
+
SUPPLY
CR5210
CR5211
0.79 1.22 Split core
(20) (31) DIA.
5 VDC Output
10 VDC Output
+
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
Typical 30mA
+
1
2
31°C and decreasing linearly to
50% at 40°C
Supply Current:
0.14
(3.5)
3
0 - 300 Ω
80% for temperatures up to
Transducers
(36)
250 ms
2 K Ω or greater
4-20 mADC...........
Relative Humidity:.....
Vibration Tested To:................... IEC 60068-2-6,1995
Pollution Degree:.....................
Greater than 100 K hours
Output Load:...... ±5 or ±10 VDC......
+
1
2
3
4
9
8
7
3.268
(83)
6
5
OUTPUT
+
SUPPLY
-
1 hole: 0.79(20) Dia. for CR5210 & 5220 (shown)
CR5220 4 - 20 mADC Output
1.42
(36)
CONNECTION DIAGRAM
OUTLINE DRAWING
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit
breaker shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
47
E-mail: [email protected]
DC Voltage Transducer
DIN RAIL / PANEL MOUNT, RMS
The CR5300 Series, DC Voltage Transducers and Transmitters,
are designed to provide an output DC signal that is
proportional to the input DC voltage. These devices are
especially suited for applications with a current shunt to
monitor DC current.
Applications
Power Supply over/under sensing
Battery chargers and systems
Mobile applications
Power sensing
CR5310
Features
CR5320
Output isolated from input
Available with 0-5 VDC, 0-10 VDC or 4 - 20 mADC outputs
35mm DIN rail or panel mount
Connection diagram printed on case
Single Element
1 - 200 VDC Input Range
C
Transducers
CR5311
Regulatory Agencies
If you need a relay output, use a CR3395.
See Section for Details.
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR5310 with Resistor Application is
shown below (optional).
L1
E199795
L2
1
2
3
4
9
8
7
6
5
M
XXXX
+
-
Add suffix for input range
PART NUMBERS
CR5310
CR5311
CR5320
-
Single Element with 5 VDC output
Single Element with 10 VDC output
Single Element with 4 - 20 mADC output
NOTE: CR5300 Series is available with 12V Power Supply. Use same application as 24V Power Supply.
1
5
10
50
150
200
-
0-1 VDC
0-5 VDC
0-10 VDC
0-50 VDC
0-150 VDC
0-200 VDC
Ranges available up to and including
600 VDC
* UL Recognized up to 300 Vdc
Example Part Number: CR5310-300-12V
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
48
E-mail: [email protected]
DC Voltage Transducer
DIN RAIL / PANEL MOUNT, RMS
SPECIFICATIONS
Basic Accuracy:.......................
1.0 %
Supply Voltage:............. 24 VDC ±10%
500 PPM/°C
Output Load:.................. ±5 or ±10 VDC.2 K Ω or greater
Linearity:...................................
10% to 100% FS
Operating Temperature:...........
0°C to +50°C
Thermal Drift:...........................
Installation Category:...............
Vibration Tested To:.................
CAT II
IEC 60068-2-6,1995
Pollution Degree:.....................
2
Altitude:...................................
2000 meter max.
Insulation Voltage:...................
2500 VDC
Response Time: .....................
250 ms
Response Time: ....................250 ms. max.,0-90% FS
Cleaning:.................................
Water-dampened cloth
(36)
Relative Humidity:........
Supply Current:
4-20 mADC 0 - 300 Ω
80% for temperatures up to
31°C and decreasing linearly
to 50% at 40°C
CR5310:........................ Typical 10mA
Max 15mA
CR5320:........................ Typical 35mA
Max 35mA
Torque Specs.:.............. 3.0 inch lbs. (0.4Nm)
Weight:.......................... 0.5 lbs.
C
0.14
(3.5)
3.5)
2
9
3
8
4
7
1.06
(26.8)
6
5
2.874
(73)
+
0.79 1.2
(20) (31
INPUT 1
-
1
2
3
4
+
9
8
7
6
5
OUTPUT 1
-
+ SUPPLY
CR5310 5 VDC Output
CR5311 10 VDC Output
1.16
(29.5)
0.20
(5.1)
3.268
(83)
Dimensions for All CR5300 Series (shown)
+
INPUT 1
-
1
2
3
4
+
9
8
7
6
5
OUTPUT 1
+
-
-
SUPPLY
CR5320 4 - 20 mADC Output
1.42
(36)
OUTLINE DRAWING
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
49
E-mail: [email protected]
Transducers
1
Frequency Range:........ DC only
AC/DC Hall Effect Current Transducer
DIN RAIL / PANEL MOUNT, TRACING OUTPUT
The CR5400 Series, AC/DC Hall Effect Current Transducers,
are designed to provide a bipolar output that proportionally
reflects (traces) the waveform of the input current. These
devices are specifically targeted to be used in applications
where multi-mode current sensing is required.
Applications
Inverter and multi-frequency drives
Multi-mode ground paths carrying both AC and DC signals
Feed back loop building block
CR5410
Features
CR5411
Output isolated from input
Non-contact current sensing
35mm DIN Rail or Panel Mount
Connection diagram printed on case
Single Element - .79” Window
20 TO 300 AAC/DC Input Range
C
Regulatory Agencies
Transducers
Constructed to meet UL 61010B-1
Constructed to meet CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
All single phase current transducers are
available in split core design. Simply put an
“S” at the end of the prefix*
I.E. CR5410S-30
Add suffix for input range
PART NUMBERS
CR5410(S)
CR5411(S)
-
Single Element with ±5 VAC/VDC output (split core design)
Single Element with ±10 VAC/VDC output (split core design)
NOTE: AC/DC Split Core Transducers Available in 20 Amps and Higher
20
30
50
75
100
150
300
-
±20 AAC/ADC
±30 AAC/ADC
±50 AAC/ADC
±75 AAC/ADC
±100 AAC/ADC
±150 AAC/ADC
±300 AAC/ADC
Ranges available up to and
including 600 AAC/ADC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
50
E-mail: [email protected]
AC/DC Hall Effect Current Transducer
DIN RAIL / PANEL MOUNT, TRACING OUTPUT
SPECIFICATIONS
Basic Accuracy:.......................
1.0 %
Linearity:...................................
10% to 100% FS
Operating Temperature:...........
0°C to +50°C
Thermal Drift:...........................
Installation Category:...............
Vibration Tested To:.................
500 PPM/°C
CAT II
IEC 60068-2-6,1995
Supply Voltage:..............24 VDC ±10%
Frequency Range:.........DC only
Output Load:................... ±5 or ±10 VDC.2 K Ω or greater
Relative Humidity:......... 80% for temperatures up to
31°C and decreasing linearly
to 50% at 40°C
Pollution Degree:.....................
2
Output Load:................. 2 K Ω or greater
Altitude:...................................
2000 meter max.
CR5410:........................ Typical 35mA
Insulation Voltage:...................
2500 VDC
Response Time: .....................
250 ms
Response Time: .....................250 ms. max.,0-90% FS
Cleaning:.................................
Water-dampened cloth
Supply Current:
Weight:.......................... 0.5 lbs.
9
8
4
7
1.06
(26.8)
9
8
7
6
5
6
5
2.874
(73)
2.874
(73)
3.5)
+
SUPPLY
0.79 1.22
(20) (31
CR5410 ±5 VAC/VDC Output
CR5411 ±10 VAC/VDC Output
0.79 1.22 Split core
(20) (31) DIA.
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
+
OUTPUT
-
CONNECTION DIAGRAM
3.268
(83)
1 hole: 0.79(20) Dia. for CR5410 (shown)
CRPS24VDC - 120
1.42
CRPS24VDC - 240
(36)
OUTLINE DRAWING
Power Supply
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
51
E-mail: [email protected]
Transducers
1
2
3
4
1
2
C
+
0.14
(3.5)
3
Max 35mA
Torque Specs.:.............. 3.0 inch lbs. (0.4Nm)
1.42
(36)
Max 40mA
CR5410S:..................... Typical 30mA
AC Power Transducer
DIN RAIL / PANEL MOUNT, ACTIVE / REACTIVE
The CR6200 Series, Power Transducers and Transmitters are
designed to provide a controlled output that is proportional to
the average power. These devices are specifically targeted to
provide an efficient solution to most power sensing needs.
Units are designed for operation in systems with sinusoidal
voltage and current wave forms.
Applications
Energy Management
Motor Efficiency
Multi-point power sensing
Remote power sensing over long distances
CR6210 CR6211
CR6220 CR6221
Features
35mm DIN Rail or Panel Mount
Ranges available for any power sensing need
Active and Reactive power sensing
0 - 5 VDC and 4 - 20 mADC outputs
Connection diagram printed on case
Transducers
C
Regulatory Agencies
Recognized to UL 61010B-1
Recognized to CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
CR6230 CR6231
CR6240 CR6241
E199795
CR6250 CR6251
CR6260 CR6261
V
CR Magnetics has a wide selection of
Current and Potential Transformers to
extend the range of any part.
I
- ACTIVE POWER
- REACTIVE POWER
POWER TRANSDUCERS CAN BE ORDERED
TO MEASURE ACTIVE OR REACTIVE POWER
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
52
E-mail: [email protected]
AC Power Transducer
DIN RAIL / PANEL MOUNT, ACTIVE / REACTIVE
Add suffix for input range
-
PART NUMBERS
CR6210
CR6211
CR6220
CR6221
CR6230
CR6231
CR6240
CR6241
CR6250
CR6251
CR6260
CR6261
-
-
1 Phase, Active Power with 0 - 5 VDC Output
1 Phase, Reactive Power with 0 - 5 VDC Output
1 Phase, Active Power with 4 - 20 mADC Output
1 Phase, Reactive Power with 4 - 20 mADC Output
3-Phase, 3-Wire, Active Power with 0 - 5 VDC Output
3-Phase, 3-Wire, Reactive Power with 0 - 5 VDC Output
150
250
500
Custom ranges available
* not UL recognized
3-Phase, 3-Wire, Active Power with 4 - 20 mADC Output
3-Phase, 3-Wire, Reactive Power with 4 - 20 mADC Output
5
25
3-Phase, 4-Wire, Active Power with 0 - 5 VDC Output
3-Phase, 4-Wire, Reactive Power with 0 - 5 VDC Output
3-Phase, 4-Wire, Active Power with 4 - 20 mADC Output
3-Phase, 4-Wire, Reactive Power with 4 - 20 mADC Output
SPECIFICATIONS
Basic Accuracy:......................... 0.5%
10% to 100% FS
Operating Temperature:............
0°C to +60°C
Thermal Drift:............................
Relative Humidity:...
500 PPM/°C
-
0-5 AAC
0-25 AAC
CR Magnetics has a wide selection of
current and potential transformers
to extend the range of any part.
Water-dampened cloth
80% for temperatures up to
31°C
and decreasing linearly
to 50% at 40°C
Installation Category:................. CAT II
Supply Current:
Pollution Degree:........................2
CR6220:
Typical 75mA
Max 110mA
CR6240:
Typical 75mA
Max 110mA
CR6260:
Typical 75mA
Max 120mA
Vibration Tested To:................... IEC 60068-2-6,1995
Response Time: ....................... 250 ms max. 0-90% FS
Supply Voltage:.........................
12 to 24 VDC
MTBF:.......................................Greater than 100 K hours
Frequency Range:....................50 Hz - 400 Hz, sine wave
Insulation Voltage:....................
Altitude:....................................
Load:........................................
2500 VDC
2000 meter max.Output
4-20 mADC -0 to 300 Ω
CR6210:......................Typical 35mA
CR6230:......................Typical 50mA
CR6250:......................Typical 50mA
Max 45mA
Max 70mA
Max 70mA
Torque Specs.:.............3.0 inch lbs. (0.4Nm)
Weight:.........................0.5 lbs.
0-5 VDC - 2K Ω or Greater
2.874
(73)
1.42
(36)
0.14
(3.5)
0.26 (6.5) Dia.
0.79 1.22 Sp
1(20)
Hole(31)
Single Element
D
2 Holes two element
3 Holes for three element
1
2
9
3
8
4
7
1.06
(26.8)
2.99 3.86 Sp
(76) (98)
6
5
2.874
(73)
0.79 1.22
( ) (31)
1.42
0.20
(5.1)
(36)
3.268
(83)
OUTLINE DRAWING
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
53
C
E-mail: [email protected]
Transducers
Linearity:...................................
Cleaning:.................
0-150 VAC
0-250 VAC
0-500 VAC *
-
AC Power Transducer
DIN RAIL / PANEL MOUNT, AVERAGE SENSING
N L1
N L1
1
2
3
4
7
6
5
+ -
-
+
1
2
3
4
OUTPUT 1
9
8
9
8
OUTPUT 1
7
6
-
+
5
SUPPLY
Supply
LOAD
LOAD
CR6210 CR6211
Single element, 0 - 10 VDC Output
CR6220
CR6221
Single element, 4 - 20 mADC Output
N
N
1
2
3
4
L1
1
2
3
4
9
8
7
6
5
OUTPUT 1
+ -
OUTPUT 1
C
L1
L2
SUPPLY
CR6220
CR6221
Single element, 4 - 20 mADC Output
with external voltage transformers
L3
1
2
1
OUTPUT 1
8
7
+ -
6
5
L3
L1
L2
9
3
4
2
9
3
4
8
7
6
+
-
OUTPUT 1
+ -
5
SUPPLY
LOAD
SUPPLY
LOAD
CR6230
CR6231
3 element - 3 Wire, 0 - 5 VDC Output
CR6240
CR6241
3 element - 3 Wire, 4 - 20 mADC output
L1
L3
L2
L3
L2
+
1
1
2
3
4
OUTPUT 1
9
8
7
6
5
2
9
3
4
8
7
-
+
OUTPUT 1
+ -
6
5
SUPPLY
SUPPLY
LOAD
LOAD
CR6230
CR6231
3 element - 3 Wire, 0 - 5 VDC Output
shown with external voltage and current transformers
CR6240
CR6241
3 element - 3 Wire, 4 - 20 mADC Output
shown with external current transformer
L1
L1
L2
-
+ -
LOAD
CR6210
CR6211
Single element, 0 - 5 VDC Output
with external voltage transformers
L1
+
9
8
7
6
5
SUPPLY
LOAD
Transducers
L1
L3
L2
L3
N
N
1
2
3
4
9
8
7
6
5
1
2
3
4
OUTPUT 1
+
SUPPLY
+
9
8
7
6
5
OUTPUT 1
+
-
SUPPLY
LOAD
LOAD
CR6250
CR6251
3 element - 4 Wire, 0 - 5 VDC Output
shown with external voltage and current transformers
CR6260
CR6261
3 element - 4 Wire, 4 - 20 mADC Output
shown with external current transformers
CONNECTION DIAGRAMS
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
54
E-mail: [email protected]
Power Factor Transducer
DIN RAIL / PANEL MOUNT, AVERAGE SENSING
The CR6300 Series, Power Factor Transducers, are designed to
sense the Phase Angle difference between AC Current and
Voltage signals.
Applications
Motor Loading
Correct Power Factor
Measure Timing
Features
CR6310
CR6311
Bandwidth is 5 KHz
Up to 500V Input on Voltage
Up to 25A Input on Current
Extend Ranges with External CT’s & PT’s
Measure -90 to +90 Phase Difference
Available with 0-5 VDC, 0-10 VDC or 4-20 mADC Outputs
35mm DIN Rail or Panel Mount
CR6320
Single Element
0 - 5 VDC, 0 - 10 VDC,
4 - 20 mADC Outputs
Constructed to meet UL 61010B-1
Constructed to meet CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
V
I
INDUCTIVE - CURRENT LAGGING VOLTAGE
I
Custom units can measure the phase angle difference
between two AC Voltages or two AC currents are
available. Contact factory for details.
V
CAPACITIVE - CURRENT LEADING VOLTAGE
PART NUMBERS
CR6310
CR6311
CR6320
-
-
Single Element with 0 - 5 VDC Output
Single Element with 0 - 10 VDC Output
Single Element with 4 - 20 mADC Output
Add suffix for input range
110
220
500
-
0-110 VAC
0-220 VAC
0-500 VAC *
Ranges available up to and
including 600 VAC
25
0-25 AAC
-
Use a 5 amp CT to extend
the range of this product line
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
55
E-mail: [email protected]
Transducers
Regulatory Agencies
C
Power Factor Transducer
DIN RAIL / PANEL MOUNT, AVERAGE SENSING
SPECIFICATIONS
Basic Accuracy:......................... 0.5%
Insulation Voltage:................. 2500 VDC
Thermal Drift:............................
Output Load:............ 4-20 mADC -0 to 300 Ω
Linearity:...................................
10% to 100% FS
Operating Temperature:............
0°C to +60°C
500 PPM/°C
Installation Category:................. CAT II
Vibration Tested To:................... IEC 60068-2-6,1995
Pollution Degree:........................2
Response Time: ....................... 250 ms max. 0-90% FS
Supply Voltage:.........................
12 to 24 VDC
MTBF:.......................................Greater than 100 K hours
Frequency Range:....................50 Hz - 400 Hz, sine wave
C
Altitude:................................. 2000 meter max.
Cleaning:.................
Relative Humidity:...
0-5 VDC - 2K Ω or Greater
Water-dampened cloth
80% for temperatures up to
31°C
and decreasing linearly
to 50% at 40°C
Torque Specs.:................ 3.0 inch lbs. (0.4Nm)
Weight:.............................0.5 lbs.
1.42
(36)
0.14
(3.5)
Transducers
1
2
9
3
8
4
7
3.5)
1.06
(26.8)
6
5
2.874
(73)
N L1
0.79 1.22
(20) (31)
1
2
3
4
5
2.874
(73)
0.26”
_____1.22
0.79
Split core
(6.5)
(20) (31) DIA.
9
8
7
6
5
OUTPUT 1
+ SUPPLY
LOAD
CR6310 0 - 5 VDC Output
CR6311 0 - 10 VDC Output
2.99 3.86 Split core
(76) (98)
0.20
(5.1)
3.268
(83)
N L1
1 hole: 0.26(6.5) Dia. for CR6310, CR6311,CR6320 (shown)
1
2
3
4
9
-
+
OUTPUT 1
8
7
6
+ -
5
LOAD
Supply
CR6320 4 - 20 mADC Output
1.42
(36)
0.14
CONNECTION DIAGRAM
OUTLINE DRAWING
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit
breaker shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
56
E-mail: [email protected]
Frequency Transducer
DIN RAIL / PANEL MOUNT
The CR6600 Series, Frequency Transducers and Transmitters
are designed to give a DC output that is proportional to an
input frequency value. These devices are especially suited to
variable frequency systems.
Applications
CR6610
CR6611
CR6612
Outputs isolated from inputs
Ranges available for any application
Sine, square and zero crossover waveforms
35 DIN rail or panel mount
Connection diagram printed on case
CR6620
CR6621
CR6622
Features
100 - 5000 Hz Input Range
Regulatory Agencies
Constructed to meet UL 61010B-1
Constructed to meet CAN/CSA-C22.2, No. 61010-1-2004
Meets requirement of IEC 61010-1 and BS EN 61010-1
Custom calibrations of unique full scale and zero
scale values including parametric measurements are
available. Contact factory for details.
Add suffix for input range
PART NUMBERS
CR6610
CR6611
CR6612
CR6620
CR6621
CR6622
-
Sine wave sensing with 0 - 5 VDC Output
Square wave sensing with 0 - 5 VDC Output
100 500 5000 -
0-100 Hz
0-500 Hz
0-5000 Hz
other ranges available
Zero crossover sensing with 0 - 5 VDC Output
Sine wave sensing with 4 - 20 mADC Output
Square wave sensing with 4 - 20 mADC Output
Zero crossover sensing with 4 - 20 mADC Output
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
57
E-mail: [email protected]
C
Transducers
35mm DIN Rail or Panel Mount
Available with 0 - 5 VDC, 0 - 10, or 4 - 20 mADC output
24 VDC powered
Use with external current transformers
Highest precision available
Connection diagram printed on case
Frequency Transducer
DIN RAIL / PANEL MOUNT
SPECIFICATIONS
Basic Accuracy:......................... 0.5%
Linearity:.................................... 10% to 100% FS
Thermal Drift:............................
Operating Temperature:............
500 PPM/°C
0°C to +60°C
Installation Category:................. CAT II
Output Load:................
GreaterCleaning:........... Water-dampened cloth
Relative Humidity:......... 80% for temperatures up to
31°C
Vibration Tested To:................... IEC 60068-2-6,1995
and decreasing linearly
to 50% at 40°C
Pollution Degree:........................2
Input Voltage:................ 20 to 250 V Peak,
Supply Voltage:.........................
Supply Current:
Response Time: ....................... 250 ms max. 0-90% FS
12 to 24 VDC
MTBF:.......................................Greater than 100 K hours
Frequency Range:....................50 Hz - 400 Hz, sine wave
C
4-20 mADC -0 to 300 Ω
0-5 VDC - 2K Ω or
Insulation Voltage:....................
Altitude:...................................
2500 VDC
2000 meter max.
(other voltage ranges available)
CR6610:....................... Typical 30mA
Max 40mA
CR6620:....................... Typical 50mA
Torque Specs.:.............
Max 95mA
3.0 inch lbs. (0.4Nm)
Weight:......................... 0.5 lbs.
Transducers
1.42
(36)
0.14
(3.5)
1
2
9
3
8
4
7
6
1.06
(26.8)
3.5)
5
2.874
(73)
INPUT 1
0.79 1.22
(20) (31)
1
2
3
4
9
8
7
6
5
OUTPUT 1
+
SUPPLY
CR6610 0 - 5 VDC Output
CR6611 0 - 5 VDC Output
CR6612 0 - 5 VDC Output
2.20 (56) for CR4620
2.99 (76) for CR4640
INPUT 1
0.20
(5.1)
3.268
(83)
Dimensions for All CR6600 Series (shown)
1
2
3
4
-
+
9
8
7
6
5
OUTPUT
+
-
SUPPLY
CR6620 4 - 20 mADC Output
CR6621 4 - 20 mADC Output
CR6622 4 - 20 mADC Output
1.42
(36)
OUTLINE DRAWING
CONNECTION DIAGRAM
NOTE: The building installation must have a switch or circuit-breaker that is in close proximity and within easy reach of the operator. The switch or circuit breaker
shall be marked as the disconnecting device for the equipment.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
58
E-mail: [email protected]
Sensing Relays and Switches
Sensing Relays and Switches
CR Magnetics Sensing Relays and Switches provide a simple method of monitoring electrical properties and alerting a system to
a fault or event condition. These products are available with a wide variety of configurations, including time delays, various output
styles and logic. From simple proving switches, to fully featured high performance ground fault sensing, our relays and switches will
provide the designer with the tools needed to implement many different control and event sensing schemes.
The CR4395 Series of AC Current Sensing Relays are designed to provide a
contact output that becomes active when the setpoint AC Current is reached. Available in active high or active low, this relay is a fully featured product, with an adjustable activation delay, adjustable setpoint, dry contact relay or solid state outputs,
and remote sensing capabilities.
The CR7310 Ground Fault Sensor provides an easy method in realizing
equipment AC ground fault protection. Using the same footprint as our other fully
featured products, the CR7310 can sense currents down to 10 mAAC and up to
100 AAC. Various power supplies, current ranges, and sensor configurations are
available.
The CR3395 and CR3495 Process Alarms are products that can be added
to standard analog process signals and create alarms and level indication. Adjustable time delays, various power supplies, current ranges, and sensor configurations are available.
The CR9300, CR9400, CR9500 and CR9600 Current Switches
and Sensors are go/no-go proving switches that are self powered with solid state
dry contact modeled outputs. Output styles are designed to provide the highest current switching capability possible at the lowest possible switchpoint. Normally closed
and normally open logic are available.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
59
E-mail: [email protected]
D
Relays and Switches
The CR5395 Series of DC Current Sensing Relays are designed to provide a
contact output that becomes active when the setpoint DC Current is reached. Similar
to the CR4395, this product includes adjustable activation delay, adjustable setpoint,
and choice of output styles. An important feature of this design is the use of a magnetic modulator to detect the magnetic fields generated by current in the conductor.
This enables the use of torroid current transformer technology that inherently rejects
the effects of outside magnetic influences. Hall effects and other types of technologies must be on-site calibrated to adjust for stray magnetic fields present in most industrial applications.
CR
43
95
CR
53
95
CR
73
10
CR
33
95
CR
34
95
CR
93
21
CR
93
50
CR
93
80
CR
94
21
CR
94
50
CR
94
80
CR
95
21
CR
95
50
CR
95
80
Selection Guide
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
AGENCY
UL/CSA Approved
RoHS Compliant
✔
✔
APPLICATIONS
✔
SENSE
AC Current Sensing
DC Current Sensing
DC Voltage Sensing
Ground Fault
Relay Output
Solid State Output
Time Delay
Adjustable Setpoint
Wire Mount
DIN Rail Mount
Panel Mount
Remote Sensing
Split Core
PART ORDERING FOR CR4395, CR5395 CR7310
Relays and Switches
D
-
CR
MODEL NUMBER
4395 - AC CURRENT
5395 - DC CURRENT
7310 - GROUND FAULT
-
POWER SUPPLY
120 - 120 VAC
240 - 240 VAC
24D - 24VDC
ACV - 80 TO 240 VAC
LOGIC
EH - ENERGIZE HIGH
LH - LATCH HIGH
EL - ENERGIZE LOW
LL - LATCH LOW
-
-
TRIP RANGE
.011 - 10 mA to 100 mA*
.11 - 100 mA to 1 A*
110 - 1 A to 10 A
330 - 3 A to 30 A
660 - 6 A to 60 A
101 - 10 A to 100 A
* - 7310 ONLY
-
-
-
CALIBRATION
CD - CALIBRATED DIAL
FP - FIXED SETPOINT
TIME DELAY
A - .5 TO 6 SEC
B - 2 TO 25 SEC
C - .1 TO 1 SEC
X - NO DELAY
SENSOR
STYLE
I - INTERNAL
R - REMOTE
OUTPUT STYLE
ELR - FORM C RELAY
NPN - ISOLATED TRANSISTOR
TRC - ISOLATED TRIAC
PART ORDERING FOR CR3395, CR3495, CR9321 AND CR9600
CR
CR
MODEL NUMBER
3395 - 4-20 mA LOOP ALARM
3495 - 0-5 VDC PROCESS ALARM
-
MODEL NUMBER
9321 - WIRE MOUNTED
9480 - SPLIT CORE
9350 - WIRE MOUNTED
9521 - WIRE MOUNTED
9380 - SPLIT CORE
9550 - WIRE MOUNTED
9421 - WIRE MOUNTED
9580 - SPLIT CORE
9450 - PANEL MOUNTED
OUTPUT STYLE
NPN - PULL LOW NPN
PNP - PUSH HIGH PNP
ACA - AC VOLTAGE SWITCH
M MountingCase
(Optional)
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
60
E-mail: [email protected]
Typical Applications
TYPICAL RELAY APPLICATIONS
CR
CR
CR
30
3
5
10
15
20
25
15
20
10
53 25
30
CR
MM
30
3
5
10
15
20
25
1520
10
53 25
30
MOTOR
OVER
/ UNDER
MONITOR
MOTOR
OVER
/ UNDER
MONITOR
Therelay
relaymay
maybebeused
usedto tomonitor
monitor
operational
of a motor.
The
thethe
operational
loadload
of a motor.
One One
legofofthe
themotor
motorwiring
wiring
is routed
through
the window
opening.
With the
leg
is routed
through
the window
opening.
With the
"EH"(Energized
(Energizedonon
High)
option,
when
the motor
current
exceeds
"EH"
High)
option,
when
the motor
current
drawdraw
exceeds
thetrip
trippoint,
point,thetherelay
relay
energize
the motor
starter.
The time
the
willwill
energize
andand
openopen
the motor
starter.
The time
delaywould
wouldbebe
long
enough
to inhibit
tripping
during
high inrush
delay
setset
long
enough
to inhibit
tripping
during
high inrush
startingcurrent.
current.Note
Note
electrical
overload
devices
starting
thatthat
an an
electrical
fusefuse
andand
otherother
overload
devices
willstill
stillbeberequired
required
complete
motor
protection.
will
forfor
complete
motor
protection.
CONNECTION
TO INDICATOR
CONNECTION
TO INDICATOR
LAMP LAMP
Thecurrent
currentswitch
switchmay
maybebeused
usedto to
drive
directly
an indicating
The
drive
directly
an indicating
lamp.lamp.
Whenusing
usingthetheACAC
output
version,
either
of the
When
output
version,
either
of the
two two
blackblack
leadsleads
may may
be be
attachedtotothethepower
power
source.A snubber
A snubber
network
is required
attached
source.
network
is required
whenwhen
connectingtotoananindictive
indictive
device
such
electromechanical
relay.
connecting
device
such
as as
an an
electromechanical
relay.
30
25
20
15
10
3
"B"
"B"
5
"A"
"A"
OPEN
HEATER
/ LAMP
DETECTOR
OPEN
HEATER
/ LAMP
DETECTOR
Therelay
relaymay
maybebeused
usedto toprovide
provide
alarm
signal
to indicate
an open
The
an an
alarm
signal
to indicate
an open
heaterelement.
element.The
Thecurrent-carrying
current-carrying
wire
is routed
through
the window
heater
wire
is routed
through
the window
opening.With
With
the"EL"
(Energized
on Low
current)
option,
opening.
the"EL"
(Energized
on Low
current)
option,
whenwhen
the the
ONE-WIRE
PASS
THREE-WIRE
PASS
ONE-WIRE
PASS
THREE-WIRE
PASS
heaterelement
elementdraws
drawscurrent
current
above
point,
the relay
remains
heater
above
thethe
triptrip
point,
the relay
remains
de- deenergized.If Ifthetheelement
elementbecomes
becomes
open,
current
level
open,
thethe
current
level
will will
be be
Thetrip
tripranges
rangesshown
shownonon
page
represent
through
The
page
15 15
represent
oneone
wirewire
passpass
through
the the energized.
reduced,causing
causingthetherelay
relay
become
energized.
Supply
power
reduced,
to to
become
energized.
Supply
power
is is
windowopening.
opening.
range
be changed
by threading
window
TheThe
triptrip
range
maymay
be changed
by threading
the the
constantly
supplied
to
the
relay
with
the
"A"
connection
and
the relay
constantly
supplied
to
the
relay
with
the
"A"
connection
and
the
relay
will will
current-carryingwire
wire
through
window
opening
several
current-carrying
through
the the
window
opening
several
times,times,
as as
cycleevery
everytime
timethe
thetemperature
temperaturecontroller
controller
cycles.
Using
alternate
cycle
cycles.
Using
the the
alternate
shownabove.
above.The
The"actual"
"actual"
range
would
berelay
the relay
shown
triptrip
range
would
be the
namename
plate plate
connectionwith
withline
line"B","B",
power
is provided
the relay
only when
connection
power
is provided
to thetorelay
only when
the the
rangedivided
dividedbyby
number
of wire
passes
through
the opening.
range
thethe
number
of wire
passes
through
the opening.
For For
temperature
controller
is
cycled
on.
With
this
connection,
the
relay
temperature
controller
is
cycled
on.
With
this
connection,
the
relay
will will
example,a aname
nameplate
plate
range
of 6.0
60 ACA
with three
wire passes
example,
range
of 6.0
to 60toACA
with three
wire passes
energizeonly
onlywhen
when
element
is open.
thethe
element
is open.
wouldprovide
provide
actual
range
of 2.0
20 ACA
(6÷3=2.0
& 60÷3=20). energize
would
anan
actual
range
of 2.0
to 20toACA
(6 3=2.0
& 60 3=20).
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
61
E-mail: [email protected]
D
Relays and Switches
EXTERNAL
CURRENT
TRANSFORMERS
EXTERNAL
CURRENT
TRANSFORMERS
Therelay
relaymay
maybebeused
usedwith
with
external
or solid-core
current
The
anan
external
splitsplit
or solid-core
current
transformer.The
Theexternal
externaltransformer
transformer
used
to access
remote
transformer.
cancan
be be
used
to access
remote
loadsororwhere
wherethethecurrent-carrying
current-carrying
is large
too large
fit through
loads
wirewire
is too
to fit to
through
the the
windowopening
opening
in the
relay.
A standard,
5 Amp
secondary,
commercial
window
in the
relay.
A standard,
5 Amp
secondary,
commercial
gradecurrent
currenttransformer
transformer
(Section
F, Pages
92-105)
would
grade
(see
page 25)
would be
attached
with be
theattached with the
secondaryleads
leadsthreaded
threaded
twice
through
window
opening,
secondary
twice
through
the the
window
opening,
as as
illustrated.The
Thetrip
triprange
range
option
"110"
10 ACA)
illustrated.
option
"110"
(1.0 (1.0
to 10toACA)
would would
then then
providefull-scale
full-scaleadjustment
adjustment
transformer.
provide
forfor
thethe
transformer.
15
20
10
53 25
30
CONNECTION
TO PLC
CONNECTION
TO PLC
Thecurrent
currentswitch
switchmay
maybebeconnected
connected
directly
a PLC.
Supply
power
The
directly
to atoPLC.
Supply
power
maybebeprovided
provided
from
PLC,
shown,
or from
an external
power
may
from
thethe
PLC,
as as
shown,
or from
an external
power
source. When
Whenusing
usinga transistor
a transistor
output,
negative
or black
source.
output,
the the
negative
or black
lead lead
from from
theswitch
switchisisattached
attachedtotothethenegative
negative
side
of the
supply.
the
side
of the
supply.
Current Sensing Relay
The CR4395 Series, Current Sensing Relay provides an effective and highly stable method for monitoring electrical current.
The current-carrying wire is routed through the opening extending from the top of the case. When current reaches the level set
by the trip point adjustment, the relay trips and starts the adjustable timer. After the timer cycles the electromechanical relay
is energized. A precision voltage reference circuit ensures a
highly repeatable trip point.
CR4395 Series
Applications
Monitor Electrical Heater Elements
Sense Motor Over/Under Loads
Detect Lamp burn-out
Indicate Phase Loss
OUTPUT OPTIONS
The Relay is available with three different output
configurations, electromechanical relay, optoisolated NPN transistor or optoisolated triac.
Specify desired selection in part number.
RELAY (-ELR)
Relays and Switches
D
Arrangement: 1 Form C (SPDT)
Contact Material: Silver-cadmium oxide
Terminals: 3 1/4” Male QC
Mechanical Life: 10 million operations,
[email protected] rated load
Electrical Life: 100,000 operations,
typ. @ rated load
Initial Contact Resistance:
50 milliohms max. @ 500 mA, 12 VDC
Contact Rating: UL508/873 & CSA
DC SWITCHING (-NPN)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Features
Variable Trip Point and Time Delay
Monitors Currents from 1 AC to 100 AC Amps
Electrical Isolation Between Circuits
Output Relay Rated up to 20 Amps
LED Trip Status Indicator
Dead Band Prevents Relay Chatter
Calibrated Dial Option Available
External Current Transformers Available
Specifications
Mounting:
3/16” dia. clearance holes on 115/16” by 215/16”centers
Environmental:
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Power-On Delay: 100 MS MAX
Hysteresis: 5% Max.
Input Supply Power:
Typical 80mA
Max 100mA
Sensed Current:
Max. Continuous: 200% Full Scale
Frequency: 60-400 Hz *
*All specifications for operation at 60 Hz only
Weight 0.5 LBS.
Regulatory Agencies
AC SWITCHING (-TRC)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 0.5 AAC RMS max. continuous
Switching mode: Zero crossing
Off state leakage: 60 ua @ 240 VAC max.
Terminals: 2 @ 1/4” Male QC
E234389
VOLTAGE
240 VAC
240 VAC
125 VAC
28 VDC
LOAD TYPE
Resistive
Motor
Motor
Resistive
N.O. CONTACT
20A
2HP
1HP
20A
N.C. CONTACT
10A
1/2 HP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
62
E-mail: [email protected]
1/4 HP
10A
Current Sensing Relay
CR4395 Series
OUTLINE DRAWING
€
€
‡ˆ‰‡ˆŠ‹
‚ƒ„
€
Top view of Current Sensing Relay
C
D
-200
3.25 1.75
12
0.82
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A
D
C
B
B
-100
„„
…
„
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12
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…„… CRGFS
Remote Current Transformers CRGFS - Series
Shown with Remote Current
Transformer Option (-R)
PART NUMBER
-
I - INTERNAL TRANSFORMER
R - REMOTE TRANSFORMER
TRIP POINT DIAL
CD - Calibrated Dial
FP - Fixed Trip Point
TRIP RANGE
110 - 1.0 to 10 AAC
330 - 3.0 to 30 AAC
660 - 6.0 to 60 AAC
101 - 10 to 100 AAC
15
20
The trip ranges shown are for
one wire pass through the
window opening. The trip range
may be proportionally lowered
with additional wire passes
through the window.
30
25
(Specify value of fixed
trippoint with order)
No adjustment
dial provided with
the fixed set
point option
D
All supply voltage tolerances
are ± 10 %
-
- CD
- FP
-3.30 trip range shown
OUTPUT OPTIONS
TRIP ON DELAY
A - .5 to 6 Sec.
B - 2 to 25 Sec.
C - .1 to 1 Sec.
X - none
NC
COM
+
+
-
Time-on delay is the time from when the relay trips to
when the output energizes. The ranges are
guaranteed minimum, actual range may be slightly
greater.
CRGFS -
NO
ELR
Electromechanical
Relay
NPN
Optoisolated
NPN Transistor
EXTERNAL CURRENT SENSING RING TRANSFORMER
100 - 1.60 dia. Window
200 -2.00 dia. Window
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
63
E-mail: [email protected]
TRC
Optoisolated
Triac, Zero Crossing
D
Relays and Switches
SUPPLY VOLTAGE
AC
120 - 120 VAC
240 - 240 VAC
DC
24D - 24 VDC
TRIP STATUS
EH - Energized on High, trips
when sense current is above trip
point and returns to non-trip
status when sense current is
below the trip point.
EL - Energized on Low, trips
when sense current is below trip
point and returns to non-trip
status when sense current is
above the trip point.
LH - Latch on High, trips when
sense current is above trip point
and remains tripped until
supply power is removed.
LL - Latch on Low, trips when
sense current is below trip point
and remains tripped until supply
power is removed.
-
CURRENT TRIP
-
3
-
5
-
10
CR4395
Direct Current Sensing Relay
The CR5395 Series, Direct Current Sensing Relay provides a
precision and cost effective method for monitoring Direct Current. Magnetic Modulator Technology is utilized for the current
sensing to provide a stable and highly repeatable current trip.
The current-carrying wire is routed through the opening extending through the top of the case. When current reaches the level
set by the trip point adjustment, the relay trips and starts the adjustable timer. After the timer cycles the electromechanical relay
energizes.
CR5395 Series
Applications
OUTPUT OPTIONS
The Relay is available with three different output
configurations, electromechanical relay, optoisolated NPN transistor or ZeroCrossing optoisolated triac. Specify desired selection in part
number.
RELAY (-ELR)
Relays and Switches
D
Arrangement: 1 Form C (SPDT)
Contact Material: Silver-cadmium oxide
Terminals: 31/4” Male QC
Mechanical Life: 10 million operations,
[email protected] rated load
Electrical Life: 100,000 operations,
typ. @ rated load
Initial Contact Resistance:
50 milliohms max. @ 500 mA, 12 VDC
Contact Rating: UL508/873 & CSA
DC SWITCHING (-NPN)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Terminals: 21/4” Male QC
DC motor drives
Battery Chargers
Power Supply Management
Uninterruptible Power Systems
Motor Application
Features
Variable Trip Point and Time Delay
Bi-polar
Monitors Currents from 1.0 ADC to 100 ADC
Electrical Isolation Between Circuits
Output Relay Rated up to 20 Amps
LED Trip Status Indicator
Dead Band Prevents Relay Chatter
Calibrated Dial
External Current Transformers Available
Specifications
Mounting:
3/16” dia. clearance holes on 115/16”by 215/16”centers
Environmental:
Operating Temperature: -30° C to +70° C
Storage Temperature: -55° C to +85°
0-95% RH, Non-condensing
Input Supply Power:
Typical 80mA
Max 100mA
Sensed Current:
Max. Continuous: 200% Full Scale
Weight 0.5 LBS.
Regulatory Agencies
AC SWITCHING (-TRC)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 500 mA RMS max. continuous
Switching mode: Zero Crossing
Off state leakage: 60 ua @ 240 VAC max.
Terminals: 2 @ 1/4” Male QC
VOLTAGE
240 VAC
240 VAC
125 VAC
28 VDC
LOAD TYPE
Resistive
Motor
Motor
Resistive
N.O. CONTACT
20A
2HP
1HP
20A
N.C. CONTACT
10A
1/2 HP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
64
E-mail: [email protected]
1/4 HP
10A
Direct Current Sensing Relay
CR5395 Series
OUTLINE DRAWING
CRDCS
OUTPUT RELAY TERMINALS
1/4 MALE TAB (3) PLACES
SUPPLY TERMINAL
1/4 TAB (2) PLACES
23
15/16"
7.4
5/16"
53.5
2 1/8"
7.1
1/4"
49.2
1 15/16"
38.3
1 1/2"
63.4
2 1/2"
Top view of Current Sensing Relay
90
80
B
C
D
-100
2.88 1.60
12
0.79
73.16 40.58 304.8 20.07
-200
3.25 1.75
12
0.82
82.55 44.45 304.8 20.83
A
D
C
TRIPPED
30
20
10
CURRENT TRIP100
% FULL SCALE
70
60
50
40
DANGER
MIN MAX
INDICATE LED
"ON" WHEN
RELAY IS TRIPPED
HIGH VOLTAGE
22.4
7/8"
TIME
DELAY
THE "ON" DELAY
TURN CLOCKWISE
TO INCREASE
REMOTE C.T.
90
80
10
20
30
CURRENT TRIP 100
TRIPPED % FULL SCALE
70
MAX
MIN
60
40
74.6
2 15/16"
50
89.4
3 1/2"
TIME DELAY
13.2
1/2"
WINDOW
SUPPLY
SUPPLY
3/16 [4.75] DIA.
MOUNTING
(2) HOLES
A
B
REMOTE CRGFS
CURRENT TRANSFORMER
TERMINAL BLOCK CONNECTION
DANGER: HIGH VOLTAGE
Shown with Remote Current
Transformer Option (-R)
Remote Current Transformers CRDCS - Series
PART NUMBER
I - INTERNAL TRANSFORMER
R - REMOTE TRANSFORMER
TRIP POINT DIAL
CD - Calibrated Dial
FP - Fixed Trip Point
TRIP RANGE
110 - 1.0 to 10 ADC
330 - 3.0 to 30 ADC
660 - 6.0 to 60 ADC
101 - 10 to 100 ADC
30
The trip ranges shown are for
one wire pass through the
window opening. The trip range
may be proportionally lowered
with additional wire passes
through the window.
3
CURRENT TRIP
(Specify value of fixed
trippoint with order)
No adjustment
dial provided with
the fixed set
point option
D
All supply voltage tolerances
are ± 10 %
-
25
ACV - 85 to 265 VAC/VDC
24D - 24 VDC
-
20
SUPPLY VOLTAGE
-
5
-
- CD
- FP
-3.30 trip range shown
OUTPUT OPTIONS
TRIP ON DELAY
A - .5 to 6 Sec.
B - 2 to 25 Sec.
C - .1 to 1 Sec.
X - none
NC
COM
+
+
-
Time-on delay is the time from when the relay trips to
when the output energizes. The ranges are
guaranteed minimum, actual range may be slightly
greater.
CRDCS -
NO
ELR
Electromechanical
Relay
NPN
Optoisolated
NPN Transistor
EXTERNAL CURRENT SENSING RING TRANSFORMER
100 - 1.60 dia. Window
200 - 2.00 dia. Window
Available with external ring sensors
capable of over 1000A of sensing
range. Contact Factory for details.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
65
E-mail: [email protected]
TRC
Optoisolated
Triac, Zero Crossing
D
Relays and Switches
TRIP STATUS
EH - Energized on High, trips
when sense current is above trip
point and returns to non-trip
status when sense current is
below the trip point.
EL - Energized on Low, trips
when sense current is below trip
point and returns to non-trip
status when sense current is
above the trip point.
LH - Latch on High, trips when
sense current is above trip point
and remains tripped until
supply power is removed.
LL - Latch on Low, trips when
sense current is below trip point
and remains tripped until supply
power is removed.
-
15
-
10
CR5395
Ground Fault Sensor
The CR7310 Series, Ground Fault Sensor provides a reliable
and cost effective method for sensing ground faults. The current-carrying wires are routed through the opening extending
from the top of the case. When ground current reaches the
level set by the trip point adjustment, the relay trips, illuminates
the tripped LED and provides an output signal. A precision
voltage reference circuit ensures a highly repeatable trip point.
The Sensor is rated as a Class 1 device.
CR7310 Series
Applications
Monitor Motor Ground Faults
Sense Early Failure of Heater Elements
Equipment Protection
OUTPUT OPTIONS
The Relay is available with three different ouput
configurations, electromechanical relay, optoisolated NPN transistor or zero-crossing optoisolated triac. Specify desired selection in part
number.
RELAY (-ELR)
Relays and Switches
D
Arrangement: 1 Form C (SPDT)
Contact Material: Silver-cadmium oxide
Terminals: 31/4” Male QC
Mechanical Life: 10 million operations,
[email protected] rated load
Electrical Life: 100,000 operations,
typ. @ rated load
Initial Contact Resistance:
50 milliohms max. @ 500 mA, 12 VDC
Contact Rating: UL508/873 & CSA
DC SWITCHING (-NPN)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Terminals: 21/4” Male Q C
Features
Variable Trip Point
Monitors Currents from 10 mA to 100 AC Amps
Electrical Isolation Between Circuits
Output Relay Rated up to 20 Amps
LED Trip Status Indicator
Dead Band Prevents Relay Chatter
Calibrated Dial
External Current Transformers Available
Specifications
Mounting:
3/16” dia. clearance holes on 115/16” by 215/16” centers
Environmental:
Operating Temperature: -30° C to +70° C
Storage Temperature: -55° C to +85° C
0-95% RH, Non-condensing
Input Supply Power:
Typical 80mA
Max 100mA
Sensed Current:
Max. Continuous: 200% Full Scale
Frequency: 50-400 Hz *
*All specifications for operation at 60 Hz only
Weight 0.5 LBS.
Regulatory Agencies
AC SWITCHING (-TRC)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 500 mA RMS max. continuous
Switching mode: Zero crossing
Off state leakage: 60 ua @ 240 VAC max.
Terminals: 2 @ 1/4” Male QC
E211244
VOLTAGE
240 VAC
240 VAC
125 VAC
28 VDC
LOAD TYPE
Resistive
Motor
Motor
Resistive
N.O. CONTACT
20A
2HP
1HP
20A
N.C. CONTACT
10A
1/2 HP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
66
E-mail: [email protected]
1/4 HP
10A
Ground Fault Sensor
CR7310 Series
OUTLINE DRAWING
€
€
‡ˆ‰‡ˆŠ‹
‚ƒ„
€
Top view of Current Sensing Relay
C
D
2.88 1.60
12
0.79
73.16 40.58 304.8 20.07
-200
3.25 1.75
12
0.82
82.55 44.45 304.8 20.83
D
C
B
B
A
„„
…
„
A
-100
„
†…
…„… CRGFS
Remote Current Transformers CRGFS - Series
Shown with Remote Current
Transformer Option (-R)
PART NUMBER
-
I - INTERNAL TRANSFORMER
R - REMOTE TRANSFORMER
TRIP POINT DIAL
CD - Calibrated Dial
FP - Fixed Trip Point
20
30
25
(Specify value of fixed
trippoint with order)
15
The trip ranges shown are for
one wire pass through the
window opening. The trip range
may be proportionally lowered
with additional wire passes
through the window.
No adjustment
dial provided with
the fixed set
point option
D
All supply voltage tolerances
are ± 10 %
TRIP RANGE
.011 - .01 to 0.1 AAC
.11 - 0.1 to 1.0 AAC
110 - 1.0 to 10 AAC
330 - 3.0 to 30 AAC
660 - 6.0 to 60 AAC
101 - 10 to 100 AAC
-
- CD
- FP
-3.30 trip range shown
OUTPUT OPTIONS
TRIP ON DELAY
A - .5 to 6 Sec.
B - 2 to 25 Sec.
C - .1 to 1 Sec.
X - none
NC
COM
+
+
-
Time-on delay is the time from when the relay trips to
when the output energizes. The ranges are
guaranteed minimum, actual range may be slightly
greater.
CRGFS -
NO
ELR
Electromechanical
Relay
NPN
Optoisolated
NPN Transistor
EXTERNAL CURRENT SENSING RING TRANSFORMER
100 - 1.60 dia. Window
200 -2.00 dia. Window
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
67
E-mail: [email protected]
TRC
Optoisolated
Triac, Zero Crossing
D
Relays and Switches
SUPPLY VOLTAGE
AC
120 - 120 VAC
240 - 240 VAC
DC
24D - 24 VDC
TRIP STATUS
EH - Energized on High, trips
when sense current is above trip
point and returns to non-trip
status when sense current is
below the trip point.
EL - Energized on Low, trips
when sense current is below trip
point and returns to non-trip
status when sense current is
above the trip point.
LH - Latch on High, trips when
sense current is above trip point
and remains tripped until
supply power is removed.
LL - Latch on Low, trips when
sense current is below trip point
and remains tripped until supply
power is removed.
-
CURRENT TRIP
-
3
-
5
-
10
CR7310
Process Alarm Switch
The CR3395 and CR3495 Series, Process Alarm Switch provides an
effective method for signaling alarm status. The Process Alarm Switch
can be fed by any 0-5V or 4-20mA process control loop. When the
control loop signal exceeds the set point the board LED illuminates
and the relay becomes energized.
CR3395/3495 Series
Applications
Process Control Systems
Reporting of Alarm Conditions
Monitor Heater Status
Monitor Motor Operation
Features
35mm DIN Rail or Panel Mountable
Adjustable Dial for Setting Trip Point
Super Bright Red LED Indicator for Alarm Status
Fully Isolated Input from Power Supply and Output
Connection Drawing Printed on Case
Process Alarm Switch
Specifications
+24 VDC +/-10% Power Supply
Form C Relay, 7A @ 250 VAC,
12A @ 125 VAC,
10A @ 28 VDC
Input: 4-20 mADC (CR3395) and 0-5VDC (CR3495)
Operating Temperature: 0 to 50°C
Weight 0.25 LBS
D
Relays and Switches
Regulatory Agencies
Load Center
CONNECTION DRAWING
MECHANICAL
1 IN +
INPUT
2 N.C.
9
3 COM
4 N.C.
8
7
GRD 6
+24V 5
Control Panel
N.C.
COM
N.O.
+ -
ORDER INFORMATION
Part Number
Input Range
CR3395
4 to 20 mADC
CR3495
0 to 5 VDC
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
68
E-mail: [email protected]
Current Switch Normally Open
CR9300 Series
The CR9300 Series is a low cost, self powered, fixed set-point Current Switch
designed for applications that require an on-off indication of current flow.
Current levels above the guaranteed full-on level will turn the output to full on.
The Current Switch is recommended only for applications where the continuous
operating current is above the rated full on level of 350 mA. Operation below
this point will not drive the output device full-on and derate the output ratings.
The unit is available with a NPN or PNP output transistor for switching DC and a
SCR output for switching AC. Connections can be made directly to items such as
a PLC or electromechanical relay. Note that connections made directly to an in-
DC SWITCHING (-NPN or -PNP)
ductive device such as an electromechanical relay will require a customer supplied clamping diode for DC operation or a snubber network for AC operation.
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (reverse polarity voltage): 1.2 VDC @
100 mADC
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Applications
Continuity
Proving Switch
Features
Low Cost
Low Fixed Trip Point
Fully Isolated
Reverse Output Polarity Protected
Self-Powered
AC SWITCHING (-ACA)
Off state voltage: 240 VAC RMS max.
Minimum holding current: 10 mA
On state current: 0.8 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
CR9321
CR9350
0.59 (15.0) DIA.
1.081
(27.46)
1.012
(25.70)
AWG # 22, 12 (304) LONG
30.30
1.19
1.775
(45)
*All specifications for operation at 60 Hz only
0.875
(22.2)
0.834
(21.18)
Rated Full-on: 0.350 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Frequency*: 50 to 400 Hz
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Weight 0.08 LBS.
in
(mm)
Regulatory Agencies
1.062
(27)
0.875
(22.2)
ELECTRICAL CONNECTIONS
PART NUMBER
CURRENT SWITCH
-
V+
VAC
RED +
CR
V+
I sink
ORANGE +
BLACK
Vce
BLACK
BLACK -
Vce
BLACK -
.27 dia. Window
.61 dia. Window
I source
-NPN
-ACA
9321
9350
NPN Transistor Output
PNP Transistor Output
ACA AC Output
M MountingCase
(Optional)
-PNP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
69
E-mail: [email protected]
Relays and Switches
OUTLINE DRAWING
0.27
(6.86)
D
Specifications
Split Core Current Switch - Normally Open
CR9380 Series
The CR9380 Series is a low cost, self powered, fixed set-point Current Switch
designed for applications that require an on-off indication of current flow.
Current levels above the guaranteed full-on level will turn the output to full on.
The Current Switch is recommended only for applications where the continuous
operating current is above the rated full on level of 350 mA. Operation below
this point will not drive the output device full-on and derate the output ratings.
The unit is available with a NPN or PNP output transistor for switching DC and a
SCR output for switching AC. Connections can be made directly to items such as
a PLC or electromechanical relay. Note that connections made directly to an inductive device such as an electromechanical relay will require a customer sup-
DC SWITCHING (-NPN or -PNP)
plied clamping diode for DC operation or a snubber network for AC operation.
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (reverse polarity voltage): 1.2 VDC @
100 mADC
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Applications
Continuity
Proving Switch
Features
Low Cost
Low Fixed Trip Point
Fully Isolated
Reverse Output Polarity Protected
Self-Powered
AC SWITCHING (-ACA)
Relays and Switches
D
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 0.8 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
Specifications
Rated Full-on: 0.350 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Weight 0.08 LBS.
OUTLINE DRAWING
AWG #22, 12 (304) LONG
0.92
23.39
0.4 (10) DIA.
0.40
10.17
*All specifications for operation at 60 Hz only
0.40
10.17
0.98
24.91
Regulatory Agencies
2.00
50.84
1.45
36.86
1.12
1.95
49.57
1.00
25.42
1.83
ELECTRICAL CONNECTIONS
V+
I sink
VAC
PART NUMBER
SPLIT CORE CURRENT SWITCH
-
CR
V+
RED +
ORANGE +
9380
0.40 dia. Window
BLACK
Vce
BLACK
BLACK -
Vce
M
BLACK I source
-NPN
-ACA
NPN Transistor Output
PNP Transistor Output
ACA AC Output
-PNP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
70
E-mail: [email protected]
Mounting Case
(optional)
Current Switch - Normally Closed
The CR9400 Series is a low cost, self powered, fixed set-point Current
Switch designed for applications that require an on-off indication of
current flow.
The normal state of the switch is On when the current level is zero. Current levels above the guaranteed full-off level will turn the output to Off.
The Current Switch is recommended only for applications where the
continuous operating level is above the rated full on level of 350 mA.
Operation below this point will not drive the output device full-on and
derate the output ratings.
The unit available with a SCR output for switching AC. Connections can
be made directly to items such as a PLC or electro-mechanical relay.
Note that connections made directly to an inductive device such as an
electro-mechanical relay will require a customer supplied clamping
diode for DC operation or a snubber network for AC operation.
CR9400 Series
DC SWITCHING (-NPN or -PNP)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (reverse polarity voltage): 1.2 VDC @
100 mADC
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Applications
Continuity
Proving Switch
Features
Low Cost
Low Fixed Trip Point
Fully Isolated
Self-Powered
AC SWITCHING (-ACA)
Off state voltage: 240 VAC RMS max.
Minimum holding current: 10 mA
On state current: 0.8 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
Specifications
OUTLINE DRAWING
CR9421
CR9450
AWG # 22, 12" (304) LONG
AWG # 22, 12 (304) LONG
30.30
1.19
11.46
0.45
6.86
0.27
*All specifications for operation at 60 Hz only
1.775
(45)
41.02
1.62
29.21
1.15
in
(mm)
27.00
1.06
Regulatory Agencies
0.875
(22.2)
1.062
(27)
0.875
(22.2)
22.23
0.88
ELECTRICAL CONNECTIONS
V+
V+
I sink
VAC
RED +
CR
ORANGE +
BLACK
Vce
BLACK
BLACK -
Vce
BLACK -
9421
9450
.27 dia. Window
.61 dia. Window
I source
-NPN
-ACA
PART NUMBER
CURRENT SWITCH
NPN Transistor Output
PNP Transistor Output
ACA AC Output
M Mounting Case
(Optional)
-PNP
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
71
E-mail: [email protected]
Relays and
0.59 (15.0) DIA.
D
Rated Full-off: 0.400 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Frequency*: 50 to 400 Hz
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Weight 0.08 LBS.
Split Core Current Switch - Normally Closed
CR9480 Series
The CR9480 Series is a low cost, self powered, fixed set-point Current Switch
designed for applications that require an on-off indication of current flow.
Current levels above the guaranteed full-on level will turn the output to full Off.
The Current Switch is recommended only for applications where the continuous
operating current is above the rated full on level of 350 mA. Operation below
this point will not drive the output device full-on and derate the output ratings.
The unit is available with a NPN or PNP output transistor for switching DC and a
SCR output for switching AC. Connections can be made directly to items such as
DC SWITCHING (-NPN or -PNP)
a PLC or electromechanical relay. Note that connections made directly to an inductive device such as an electromechanical relay will require a customer sup-
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (reverse polarity voltage): 1.2 VDC @
100 mADC
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
plied clamping diode for DC operation or a snubber network for AC operation.
Applications
Continuity
Proving Switch
Features
AC SWITCHING (-ACA)
Relays and Switches
D
Low Cost
Low Fixed Trip Point
Fully Isolated
Reverse Output Polarity Protected
Self-Powered
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 0.8 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
Specifications
Rated Full-on: 0.400 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Weight 0.08 LBS.
OUTLINE DRAWING
AWG #22, 12 (304) LONG
0.92
23.39
0.4 (10) DIA.
0.40
10.17
0.40
10.17
0.98
24.91
*All specifications for operation at 60 Hz only
2.00
50.84
1.45
36.86
1.12
1.95
49.57
Regulatory Agencies
1.00
25.42
1.83
46 41
ELECTRICAL CONNECTIONS
V+
V+
I sink
VAC
RED +
PART NUMBER
SPLIT CORE CURRENT SWITCH
-
CR
ORANGE +
BLACK
Vce
BLACK
BLACK -
Vce
BLACK I source
-NPN
-ACA
9480
0.40 dia. Window
-PNP
NPN Transistor Output
PNP Transistor Output
ACA AC Output
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
72
E-mail: [email protected]
M
Mounting Case
(optional)
Adjustable Current Switch Normally Open
CR9600 Series
The CR9600 Series is a low cost, self powered, adjustable set-point Current
Switch designed for applications that require an on-off indication of current flow.
Current levels above the setpoint will turn the output to full on. The Current
Switch is recommended only for applications where the continuous operating
current is above the rated full on level of 1.0 Amps. Operation below this point
will not drive the output device full-on and derate the output ratings.
The unit is available with a NPN or PNP output transistor for switching DC and a
SCR output for switching AC. Connections can be made directly to items such as
a PLC or electromechanical relay. Note that connections made directly to an in-
DC SWITCHING (-NPN or -PNP)
ductive device such as an electromechanical relay will require a customer supplied clamping diode for DC operation or a snubber network for AC operation.
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC [email protected] rated full-on
Vce (reverse polarity voltage): 1.2 VDC @
100 mADC
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Applications
Continuity
Proving Switch
Features
Low Cost
Adjustable Trip Point
#22 AWG 12” Lead Length
Reverse Output Polarity Protected
Self-Powered
AC SWITCHING (-ACA)
Off state voltage: 240 VAC RMS max.
Minimum holding current: 10 mA
On state current: 1.0 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
Part Number A
A
#22 AWG
TWISTED
LEADS
LED FUNCTION
INDICATOR
25.70
1.012
30.30
1.19
CR9650
B
B
C
6.86
0.27
15.00
0.59
40.64
1.60
48.26
1.90
ADJUSTMENT
DIAL
1.83
46.41
C
0.97
24.73
0.14
3.61
0.51
12.84
0.10
2.54
Rated Full-on: 1.0 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Frequency*: 50 to 400 Hz
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Weight 0.08 LBS
*All specifications for operation at 60 Hz only
Regulatory Agencies
1.02
25.78
ELECTRICAL CONNECTIONS
V+
RED +
PART NUMBER
-
V+
I sink
VAC
CR
ORANGE +
CURRENT SWITCH
BLACK
Vce
BLACK
BLACK -
Vce
BLACK I source
-NPN
-ACA
-PNP
9621
9650
0.27 dia. Window
0.59 dia. Window
INPUT
RANGE
10
25
50
NPN Transistor Output
PNP Transistor Output
ACA AC Output
M Mounting Case
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
73
E-mail: [email protected]
Relays and Switches
OUTLINE DRAWING
CR9621
D
Specifications
Current Sensor
The CR9500 Series Current Sensors provides a cost effective
method for monitoring electrical current. The sensor generates a
0-5 VDC signal proportional to the input AC current. The output
signal is average sensing, calibrated to RMS.
The sensor is used with process control and industrial instrumentation equipment. Especially suited for OEM applications that
require a low cost solution for numerous monitoring locations.
The DC output can be connected directly to an analog input
connection without additional signal conditioning. Care must be
taken to ensure the burden impedance of the instrumentation is
greater than 1.0 megohm. The unit will operate with lower burden impedance but at reduced accuracy.
Applications
OUTLINE DRAWING
OEM Current Sensing
Home Automation
Monitor Motor Operation
CR9521 and CR9550
0.27 (6.8) DIA. CR9521
0.61 (15.5) DIA. CR9550
AWG #22, 12 (304) LONG
Features
Low Cost
Low Fixed Trip Point
Fully Isolated, Reverse Polarity Protected
Self-Powered
Available in Mountable Package
Output Overload Protected
+
CR9521
1.614(41)
CR9550
1.775 (45)
0.875
(22.2)
IN
(MM)
Relays and Switches
D
1.062
(27)
0.875
(22.2)
Specifications
0.92
23.39
CR9580
Accuracy: ±0.5% Full Scale (FS)
Ripple: 1% Max
Signal Out: 0-5 VDC
Max. Signal Out: 12 VDC
Frequency * : 50 to 400 Hz
Insulation Class: 600 V
Operating Temperature: -30 C to + 60 C
Storage Temperature: -55 C to + 85 C
Shipping Weight: 2 oz. (.06 Kg.)
Dielectric Withstand: 2,500 Vrms
Response Time:
250 ms. max. 10-90% FS
Calibration: Avg. Sensing, RMS Calibrated
Output Load: 1.0 Megohm or greater for rated accuracy
Weight 0.11 LBS.
* All specifications for operation at 60 Hz
0.40
10.17
0.40
10.17
0.98
24.91
2.00
50.84
1.45
36.86
1.95
49.57
1.00
25.42
1.83
46.41
0.14
3.61
0.51
12.84
FootPrint
PART NUMBER
-
CR
9521
9550
9580
.27 dia. Window
.61 dia. Window
.40 Splitcore
INPUT
RANGE
10
20
50
Regulatory Agencies
M
Mounting Case
(optional)
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
74
E-mail: [email protected]
Indicators & Displays
Indicators & Displays
CR Magnetics Indicators are designed to give the designer an easy and low cost method of sensing electrical properties. The
simple indicating LED represents the presence of AC current in a conductor placed through the sensing ring. Useful for quick and
easy analysis of heater elements, lighting filaments, and motor operation, these products save money by increasing
efficiency, decreasing down time, and improving maintenance operations.
The CR45 Current Indicator is our most popular indicator product.
Self powered and in a complete self contained package, the CR45 is a wire
mountable unit shipped complete with a wire mounting anchor. Use the MB45
bracket for panel mounting. The CR45 is available in red, green, blue, white,
yellow and amber LEDs.
The PH31 Series are remote panel mounted indicators designed to provide remote AC current indication and status. The bezel
mounting design allows for use in NEMA and fluid spray cabinets.
Use with the Model 18 or Model 19 remote current sensors.
The PH25 Series remote panel mounted indicators are for use in less
stringent environment panels. Identical electrically to the PH31, the snap-in
panel mount action makes assembly quick and easy. Available in all colors.
The Current Mark Displays are designed as a low cost method
for providing a visual indication and measurement of electrical current
flow. The current-carrying wire is routed through the window opening in
the current sensing transformer, providing sensing and power for the
instrument.
CRM1000 Series high efficiency, 7 LED indicator that illuminates as the
current approachs the full scale range.
CRM2000 Series is a modern looking light bar with nice visual appeal.
CRM3000 Series is an auto-ranging display with an input range up to
50 AAC.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
75
E-mail: [email protected]
E
Indicators and Dispalys
The CR2550 Low Cost Current Indicator is designed for use
in high volume applications. Entirely self contained
construction provides a complete low cost solution that is easily
mounted and provides snap in panel construction.
AC Current Sensing
✔
Self Contained
Panel Mount
Wire Mount
NEMA Rated
Low Cost
Remote Sensing
MB-18 Bracket
MB45 Bracket
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
MO
D
19 EL
MO
DE
18 L
CR
25
50
PH
25
PH
31
CR
45
Selection Guide
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
INDICATOR PART ORDERING
CR45 - ❑
R - Red
G - Green
B - Blue
W - White
Y - Yellow
A - Amber
PH31 - ❑
Indicators and Displays
E
PH25 - ❑
CR2550 - ❑
MODEL 18-600 Sensor
MODEL 19 Sensor
MB-18 Mounting Bracket
MB45 Mounting Bracket
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
76
E-mail: [email protected]
Wire Mounted Current Indicator
CR45 Series
MB45 Bracket
The CR45 Series, Wire Mounted Electrical Current Indicators
provide an effective method of monitoring electrical current.
The indicator is attached directly to a current-carrying wire.
When the current exceeds the turn-on point, the LED will illuminate to indicate the presence of current.
Applications
Monitor Status of Heater Elements
Observe Remote Loads
Indicate Phase Loss
Monitor Motor Operation
Two-Wire Passes
One-Wire Pass
Three-Wire Passes
Features
Self Powered
Red, Green, Blue, White, Yellow and Amber Indicators
Easy to Install
Supplied with a plastic wire tie
Bright Yellow Case for Easy Identification
Panel Mounting Bracket available
Specifications
Panel Mount
Load Center
PART NUMBERS
LED Color
Turn On Point (1 pass)
CR45-R
Red
2.0 AAC
CR45-G
Green
2.5 AAC
CR45-B
Blue
2.0 AAC
CR45-W
White
2.0 AAC
CR45-Y
Yellow
2.0 AAC
CR45-A
Amber
2.0 AAC
MB45
Regulatory Agencies
PENDING
Panel Mounting Bracket
7.9mm DIA.
(.31")
29.5 mm Max
5.1mm DIA.
(1.16")
3.7mm DIA.
4.4mm Max
(.144" )
(.175")
2 PLACES
(.20")
6.4mm
(.25")
.19.8mm
(.781")
26.
4mm
(1.04)
1.04” 26.4mm
NOT FURNISHED
24.1mm
(.95")
39.7mm
TWO #6 SCREWS
5.2mm DIA.
(1.562")
(.203")
11.7mm
(.46")
RUBBER
CR-45
WASHER
FURNISHED
MB45
Recommended
Mounting Hole Pattern
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
77
E-mail: [email protected]
E
Indicators and Dispalys
Part Number
100 AAC Max, 600 VAC Max rating
Thermoplastic Case Material
14.2 g / 0.5 oz weight
50 - 1Khz Bandwidth
-100C to +850C Operating Temperature
Mounting Bracket Non-Magnetic Aluminum Material
Weight 0.03 LBS.
Remote Current Indicator
PH Series
PH-25 Snap In
The Remote Electrical Current Indicators provide an effective method for remote monitoring of electrical current. The
remote current sensing transformer is installed around the
current-carrying wire and is connected directly to the LED
panel indicator. When the current exceeds the turn-on point
of the sensing transformer, the LED illuminates to indicate the
presence of current. Two sizes of remote current sensing
transformers are available for use with either one of two
types of LED indicators. The panel indicators are available
with either red, green, blue, white, yellow or amber LEDs.
PH-31 Splash Proof
Model 19
Applications
Monitor Status of Heater Elements
Observe Remote Loads
Indicate Phase Loss
Monitor Motor Operation
Model 18 (w/ Bracket)
Features
PART NUMBERS
Part Number
PH-25-A
PH-25-B
PH-25-G
PH-25-R
PH-25-W
PH-25-Y
PH-31-A
PH-31-B
PH-31-G
PH-31-R
PH-31-W
PH-31-Y
Model 19
Model 18
MB-18
Indicators and Displays
E
Self Powered
Red, Green, Blue, White, Yellow and Amber Indicators
Panel Mounting Bracket available
LED Color Model 18 Turn On Model 19 Turn On
Amber
3.0 AAC
2.5 AAC
Blue
2.5 AAC
2.0 AAC
Green
3.0 AAC
2.5 AAC
Red
2.5 AAC
2.0 AAC
White
2.5 AAC
2.0 AAC
Yellow
2.5 AAC
2.0 AAC
Amber
3.0 AAC
2.5 AAC
Blue
2.5 AAC
2.0 AAC
Green
3.0 AAC
2.5 AAC
Red
2.5 AAC
2.0 AAC
White
2.5 AAC
2.0 AAC
Yellow
2.5 AAC
2.0 AAC
Wire Mount Current Transformer, 7.4mm window
Panel Mount Current Transformer, 14mm window
Panel Mounting Bracket for Model 18
Specifications
100 AAC Max, 600 VAC Max rating
50 - 1Khz Bandwidth
-100C to +850C Operating Temperature
Mounting Bracket Non-Magnetic Aluminum Material
Weight 0.03 LBS.
Regulatory Agencies
Model 18 and Model 19 Only
PH25 & PH31 Pending
#22 AWG UL
UL STYLE 1213
. .95 (24.1)
PANEL
NTS
.29 (7.4)DIA.
THICKNESS
12 (304.8)
1.04 (26.4)
Bore Hole Size = 5/16”
.16 (4.1) MAX.
12 (304.8)
.39 (9.9) DIA
NTS
.46 (11.7)
CURRENT LIMITING RESISTOR
Model 19 Dimensions
WASHER
PH31 Dimensions
PH25 Mounting
4) DIA.
#6 (M3.5) SCREW
NOT FURNISHED
(2.7)
H1
1.49
[37.8]
X1
.25 (6.4)
12 (304.8)
[14]
.55
.105 max.
.875 (22.2)
.25 (6.4)
1.37 (34.8)
MB-18 Dimensions
.750 (19.1)
1.25 (31.08)
#4-40 FLAT HEAD
X2
0.95
[24.1]
1.33 [33.8]
NTS
#20 AWG
UL STYLE 1015
0.79
[28.1]
[6.2]
0.25
0.19
[4.8]
#4-40 INSET
0.17 DEEP
0.25 [609.6]
[13.2]
0.52
CURRENT LIMITING RESISTOR
SCREW FURNISHED
Model 18 Dimensions
PH25 Outline
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Low Cost Remote Current Indicator
The CR2550 Series Remote Current Indicators are designed
as a low cost method for providing a visual indication of
electrical current flow. The current-carrying wire is routed
through the window opening in the current sensing transformer. Attached to the transformer is a high efficiency, bipolar LED that illuminates when the current is above the turnon point. The indicator is available as standard with an 11
inch long lead and a red, green, blue, white, amber or yellow LED indicator.
CR2550 Series
Applications
PART NUMBERS
Monitor Status of Heater Elements
Observe Remote Loads
Indicate Phase Loss
Monitor Motor Operation
Part Number
LED Color
Turn On Point (1 pass)
CR2550-R
Red
0.75 AAC
CR2550-G
Green
1.5 AAC
CR2550-B
Blue
1.0 AAC
CR2550-W
White
0.75 AAC
CR2550-Y
Yellow
1.0 AAC
Self Powered
Red, Green, Blue, White, Yellow and Amber Indicators
Low fixed trip point
Low Cost for high Volume OEM Applications
CR2550-A
Amber
1.5 AAC
Specifications
Features
Typical Installation
Regulatory Agencies
PENDING
11.0(279.4)
0.87 (22.0)
-Available in Custom Lengths
0.35 (9) Dia.
1.09 (27.8)
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E
Indicators and Dispalys
20 AAC Max, 600 VAC Max rating
Thermoplastic Case Material
14.2 g / 0.5 oz weight
50 - 400 Hz Bandwidth
-300C to +600C Operating Temperature
-550C to +850C Storage Temperature
T-13/4, Bipolar, Red/Red or Green/Green Diffused,
Indicator is supplied with LED attached to current sensing
transformer. Supplied with both one-piece press in lens and
two-piece mounting clip.
Weight 0.03 LBS.
Current Mark Displays
CRM1000 Series
The Current Mark Displays are designed as a low cost
method for providing a visual indication and measurement of
electrical current flow. The current-carrying wire is routed
through the window opening in the current sensing transformer, providing sensing and power for the instrument.
CRM1000 Series high efficiency, 7 LED indicator that illuminates as the current approachs the full scale range.
CRM2000 Series is a modern looking light bar with nice visual appeal. CRM3000 Series is an auto-ranging display with
an input range up to 50 AAC.
Applications
Monitor Status of Heater Elements
Observe Remote Loads
Indicate Phase Loss
Monitor Motor Operation
CRM2000 Series
Features
Self Powered
Quick Visual Marking of AC Current
Compact
Low Cost for high Volume OEM Applications
Specifications
300AAC In-Rush 100AAC Continuous
600 VAC Max rating
Thermoplastic Case Material
50/60 Hz Bandwidth*
-300C to +600C Operating Temperature
-550C to +850C Storage Temperature
CRM3000 Series
Indicators and Displays
E
50 AAC Rated
* Contact Factory for additional input frequency ranges
Regulatory Agencies
LISTED
MEASURING EQUIPMENT
4ST7
PART NUMBERS
-
CRM1000
CRM2000
CRM3000
Add suffix for input range
25
50
-
0-25 AAC
0-50 AAC
7-LED Indicator
Light Bar
Auto Ranging to 50 AAC
50
Current Transformer:
-I Internal
-R Remote Split CR3110-1500-36
CR3110-1500-36
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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Current Mark Displays
OUTLINE DRAWING
0.880
[22.352]
0.880
[22.352]
3.160
[80.26]
#8-32 STUD
TYP 2 PLACES
0.700
[17.78]
0.380
[9.652]
3.160
[80.26]
0.700
[17.78]
#8-32 STUD
TYP 2 PLACES
0.380
[9.652]
0.350
[8.890]
1.800
[45.72]
1.800
[45.72]
0.250
[6.35]
0.760
[19.304]
0.800
[20.32]
SIDE VIEW
BACK VIEW
SIDE VIEW
BACK VIEW
CRM1000 - R UNIT DIMENSIONS
CRM1000 - I UNIT DIMENSIONS
1.160
[29.464]
1.160
[29.464]
3.160
[80.26]
#8-32 STUD
TYP 2 PLACES
0.700
[17.78]
0.380
[9.652]
0.350
[8.890]
3.160
[80.26]
0.700
[17.78]
#8-32 STUD
TYP 2 PLACES
0.380
[9.652]
1.800
[45.72]
1.800
[45.72]
0.250
[6.35]
0.760
[19.304]
0.800
[20.32]
SIDE VIEW
BACK VIEW
SIDE VIEW
CRM2000 - I UNIT DIMENSIONS
1.00
[25.4]
BACK VIEW
CRM2000 - R UNIT DIMENSIONS
3.160
[80.28]
0.700
[17.78]
0.700
[17.78]
#8-32 STUD
TYP 2 PLACES
1.800
[45.72]
1.800
[45.72]
.250
[6.35]
ALARM CONNECTION
.800
[20.32]
.800
[20.32]
SIDE VIEW
ALARM CONNECTION
SIDE VIEW
BACK VIEW
CRM3000-50-I UNIT DIMENSIONS
BACK VIEW
CRM3000-50-R UNIT DIMENSIONS
CR3110-1500-36
For Remote Application
CRM3000 SPECIFICATIONS
CRM3000-50-I
BASIC ACCURACY
CRM3000-50-R
BASIC ACCURACY
CALIBRATION
10 AAC
25 AAC
50 AAC
10 AAC
25 AAC
50 AAC
LOW SCALE
9.9
24.25
49.50
9.8
24.50
49.00
HIGH SCALE
10.1
25.25
50.50
10.2
25.50
51.00
READABLE RANGE FROM 2 AAC TO 51 AAC
ACCURACY
1.0 %
1.0 %
1.0 %
2.0 %
2.0 %
2.0 %
A
B
D
C
PART NUMBER
CR3110-1500-36
F
A
B
C
81
D
E
1.04 0.40 1.58 36.0 1.04
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E
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F
0.24
Indicators and Displays
.380
[9.652]
250V PTR
2.5 AK793
.350
[8.89]
E
3.160
[80.28]
1.00
[25.4]
#8-32 STUD
TYP 2 PLACES
.380
[9.652]
Current Mark Displays
CRM3000 CABLE ASSEMBLY CONNECTION DIAGRAM
1
2
3
Red
Active
High,High
3.3 VDC
RED- -Alarm:
Alarm
Active
3.3(1mA
Vdc Max.)
(1mA
Max)
BLACK
State
Switch
-NPN-(20mA
200 Max,
VDC)
BLACK- Solid
- Solid
State
Switch
NPN Max.,
(20mA
Green
- Ground
GREEN
- Ground
ALARM PROGRAMMING AND OPERATING INSTRUCTIONS
Models:
CRM3000-50-I
CRM3000-50-R
Indicators and Displays
E
1.
2.
3.
4.
5.
6.
7.
8.
Provide power to the unit.
Determine desired current level to activate alarm
Press and hold alarm button for two seconds and release
LCD display blinks either the last alarm setting or “Aoff”.
(Unit is factory set in “Aoff” mode)
Depress and release alarm button until desired set-point is reached
Press and hold alarm button for two seconds
Set-point is stored in memory and unit returns to normal operation
To deactivate alarm, press and hold alarm button for two seconds in “Aoff” mode
CRM3000 ALARM CABLE & PIN CONNECTOR (Optional)
CRM3000-CBL-36
CRM3000 Alarm Cable Assembly 36” Lead
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200 Vdc)
Current Transformers
Current Transformers
CR Magnetics supplies an extensive line of current transformers for any need. With offerings measuring
from 10,000 Amps to a few milliamps, we guarantee we will find a product that works for your application.
Our facilities in the USA and Asia insure a low lead time on small and large quantity orders. We also maintain
a healthy stock of the most popular sizes and current ratios.
The CR8400 Current Transformers are wire lead, wire mount versions of the
same transformers offered in the CR8300 series. Additionally, some special ratios
are available for ground fault and indicator applications. Available in stock standard ratios, with fast turn around times for special designs.
ANSI and Commercial Class Current Transformers are standard 5 Amp secondary devices available in the most common footprints and mounting styles. Doughnut or
Panel mounting, with leads or terminals are available. ANSI Class grades have been
certified to meet most revenue grade meter requirements, and Commercial grade
devices provide consistent, accurate monitoring for most industrial applications. Our
short run capability is also available for unique non-standard ratio applications.
Competitively priced, with UL, CSA, CE, and RoHS approvals.
Split Core and Horizontal Current Transformers are special packages
provided for unique requirements. Split core devices allow the CT to be installed
over existing power cables. Horizontal PC mount current transformers allow for
unique wire placement within your products. Our most popular units are in stock,
and we also offer quick turn around for custom designs.
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Current Transformers
The CR8300 Series Current Transformers are printed circuit board mounted
products designed to provide AC current measurement capability to any application.
Typically high ratio devices, these products are designed to be applied to modern
signal processing techniques and ICs to provide extremely accurate monitoring and
measurement. Specific core and winding construction are available including nickel
cores for power meter and ground fault applications, silicon steel core for standard
applications, ferrite core for high frequency sensing, and a DC immune type core for
dirty power measurement.
F
Selection Guide
WIRE MOUNTED
WIRE LEADS
✔
✔
CT
W5
60
0,6
01
17
,18
,19
CR
87
50
CT
W3
61
3
CR
1,2
CR
2D
A
CR
5,6
,7
CR
8,
17
0
CR
56
,76
CR
83
00
CR
83
00
G
CR
83
00
N
CR
83
00
F
CR
84
00
CR
84
00
N
CR
84
00
G
CR
84
00
F
CR
31
00
61
0
✔ ✔
✔
✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔
✔
✔
✔
✔ ✔ ✔
✔ ✔ ✔
✔
✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔
✔
✔
✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔
✔
✔
✔
✔
✔
✔ ✔
✔
✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔ ✔ ✔ ✔
✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔
✔ ✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔
✔
✔ ✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
PRINTED CIRCUIT
BOARD MOUNT
SPLIT CORE 5 AMP &
HIGH RATIO
✔ ✔
✔ ✔
✔ ✔
✔ ✔
INDICATOR
GENERAL PURPOSE
CR Magnetics supplies many products not shown here. High current CTs, special
medium voltage CTs, and custom designs. Please contact the factory for details!
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AGENCY
ANSI Class
Commercial Class
Power Meter
Current Meter
Motor Current
Ground Fault
Indicator
High Frequency
DC Immune
Medium Voltage
5 Amp Secondary
High Ratio
Split Core
PC Mount
Wire Mount
Horizontal Mount
Panel Mount
UL/CSA Approved
CE Approved
RoHS Compliant
PACKAGE
F
MEDIUM VOLTAGE
WOUND PRIMARY
APPLICATION
Current Transformers
ANSI & COMMERCIAL
GRADE 5 AMP
Typical Applications
Changing Current Transformer Ratios
The actual current ratio may be changed from the nameplate ratio by
wrapping the primary and/or secondary leads through the window
opening.
ACTUAL
TURNS
RATIO
NAMEPLATE RATIO
=
±
NUMBER OF SECONDARY TURNS
THROUGH WINDOW OPENING
NUMBER OF PRIMARY TURNS
THROUGH WINDOW OPENING
Wire from X1 terminal is routed through
the H1 side and out the H2 side
+ Wire from X1 terminal is routed through
the H2 and out the H1 side
Example
This illustration shows how a current transformer with a nameplate
turns ratio of 125:5 can be rescaled to operate as a non-standard
55:5 ratio transformer.
WHERE:
Nameplate ratio = 125 (125/5)
Number of secondary turns through window = - 3
Use -3 because the secondary wire is routed from X1 terminal first
through the H1 side and out the H2 side
(Use + if the wire was routed first through the X2 side)
F
Number of primary turns through window = 2
125
5
—
2
3
=
PRIMARY
(55 AAC)
11
SECONDARY
(5 AAC)
TURNS RATIO = 11:1
CURRENT RATIO = 55:5
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Current Transformers
-
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Typical Applications
Winding Polarity
X2
Black
Current Transformers
This illustration shows the internal construction of a current transformer.
The outside face of the transformer is identified as H1. The opposite
face is identified as H2. The secondary leads are identified as X1 and
X2.
Current flowing out of terminal X1 will have the same polarity as current flowing into terminal H1.
F
X1
White
H1
Window Openings
The current transformer window opening should be sized according to
the outside diameter of the wire and the number of wires, with ample
clearance added to facilitate installation.
Use the below formula for multiple wires of the same diameters
through the current transformer window opening.
Minimum Window
Diameter
=
K x
Outside Wire
Diameter
Number of
Wires Through
Opening
K
2
3
4
5
6
7
8
9
2
2.165
2.414
2.704
3.0
3.0
3.73
3.83
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Wire Lead Current Transformers
Model 17, 18, 19 Series
CR Magnetics offers a versatile line of rugged wire lead current transformers. Installed around a
current-carrying wire, the sensor provides a current output
relative to the AC input current (within
specification limits). With the output connected across a
resistive load (burden), the voltage
developed is proportional to the input current.
Applications
Current Transformers
Remote monitoring of electrical loads
Input to electrical control system
Detect open heater elements
Indicate phase loss
Model 17 & 18
Shown with optional mounting bracket MB-18
Monitor motor operation
Features
Low cost
Non-contact, isolated current measurement
Surface mounting bracket available for Models 17 and 18
Two case sizes, three different standard ratios
Specifications
Frequency: 50-60 Hz
Case Material: Black thermoplastic
Maximum Continuous Primary Current
4 X Ir
Insulation Voltage
Model 19
Regulatory Agencies
ORDER INFORMATION
Part Number
Description
Model 17-2000
Current Transformer with wire leads,
.55 dia. opening, 2000 turns
Model 17-1000
Current Transformer with wire leads,
.55 dia. opening, 1000 turns
Model 18-600
Current Transformer with wire leads,
.55 dia. opening, 600 turns
MB-18
Surface Mounting Bracket
for Model 17 or Model 18
Model 19
Current Transformer with .29 dia. opening,
230 turns
3500 Vac/1min
F
BASIC SPECIFICATIONS
Part Number
Te (typ.) DCR Ω
Imax
Vmax
Model 17-2000
200
10
2010
120
50 - 2KHz
Model 17-1000
200
7.5
1010
31
50 - 2KHz
Model 18-600
100
5
605
23
50 - 2KHz
Model 19
100
2
235
3
50 - 2KHz
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Frequency
Wire Lead Current Transformers
Outline Drawings
Secondary Voltage
4.5
4
10 OHM
3.5
20 OHM
3
47 OHM
2.5
#22 AWG UL
UL STYLE 1213
. .95 (24.1)
1 ohm
2
.29 (7.4)DIA.
1.5
1
NTS
0
Current Transformers
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Primary Current
.46 (11.7)
Model 19 - 230 Turns
Model 19:
Current Sensing Transformer
7
SECONDARY VOLTAGE (CAV)
6
5
10 ohm perfect
4
47 ohm perfect
100 ohm perfect
200 ohm perfect
3
20 ohm perfect
2
[14]
.55
1
H1
0
0
5
10
15
20
25
Primary Current (AAC)
30
35
40
Model 18 - 600 Turns
1.49
[37.8]
X1
[6.2]
0.25
0.19
[4.8]
0.95
[24.1]
9
#20 AWG
UL STYLE 1015
0.79
[28.1]
X2
10
#4-40 INSET
0.17 DEEP
1.33 [33.8]
0.25 [609.6]
[13.2]
0.52
8
7
V SECONDARY
F
12 (304.8)
1.04 (26.4)
0.5
10 OHM
20 OHM
47 OHM
MODEL 17-1000T
100 OHM
200 OHM
510 OHM
1000 OHM
6
5
4
Model 17 & 18:
Current Sensing Transformers
3
2
Also available with PCB pins
1
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
I PRIMARY
Model 17 - 1000 Turns
#6 (M3.5) SCREW
NOT FURNISHED
.105 max.
(2.7)
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
.25 (6.4)
.875 (22.2)
1.37 (34.8)
.25 (6.4)
.750 (19.1)
1.25 (31.08)
#4-40 FLAT HEAD
SCREW FURNISHED
0
5
10
15
20
25
30
35
40
45
50
55
MB-18: Surface Mounting Bracket
for Model 17 & Model 18
60
Model 17 - 2000 Turns
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Horizontal Mounting, PCB
CR8750 Series
The CR8750 Series, PCB Current Transformer provides a low cost method
for monitoring electrical current. The transformer is intended to be mounted
on a Printed Circuit Board with the current-carrying wire routed through the
center window opening. A five-pin, non-symmetrical mounting pattern
ensures correct orientation to the PCB. Two different winding ratios are
available to accommodate various applications. The graph illustrates how
different values of burden resistors attached to the output terminal will provide a number of different output voltage ranges.
Ammeters
Energy Measurement
PART NUMBERS
PART NUMBER
CR8750-230
CR8750-1000
Watt/VAR/Watthour measurement
TURNS
230
1000
Features
Low Cost
Core secured via Epoxy Resin
1.125
Hand Tuned Accuracy
MIN.
Specifications
.850
0.280"
.425
Frequency: 50-60 Hz
Case Material: Black thermoplastic
0.90 MAX
Maximum Continuous Primary Current
.140
0.250
.040 DIA.
Recommended
Mounting Hole
Pattern (Top View)
MIN
0.47 MAX
H1
TYP.
X1
0.187"
Outline Drawing
X2
Insulation Voltage
3500 Vac/1min
Regulatory Agencies
V=
CR8750-1000 Burden Chart
7
6
F
CR8750-230 ONLY
Window Polarity
(Top View)
TYPICAL RESPONSE
DCR
IxR
Te
VL = Vmax
R
-
For best linearity, choose R such that V < 0.8 VL
5
Output Voltage
4 X Ir
10 OHM
20 OHM
47 OHM
CR8750-1000
100 OHM
200 OHM
510 OHM
1000 OHM
4
3
2
1
V
I x DCR
Te
BASIC SPECIFICATIONS
Vmax Te (typ.) DCR Ω
Frequency
Part Number
Imax
CR8750-230
100
2
235
3
50 - 2KHz
CR8750-1000
100
6
1010
32
50 - 2KHz
0
0
5
10
15
20
25
30
35
40
45
50
Primary Current
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Current Transformers
Applications
E-mail: [email protected]
Current Transformers
High Ratio Vertical PCB Mount Current Transformer
F
CR8300 SERIES
CR Magnetics CR8300 Series of PCB Mounted Current Transformers are available
in a wide range of sizes and materials to meet any AC current sensing needs. Our
General Purpose designs are made from the highest quality silicon steel cores
available, and meet most of the common AC current measurement needs. Our
Revenue Grade CTs (-N) are made from a nickel alloy core which provides the
most linear response over temperature and current level. The High Frequency
(-F) products are designed for high frequency applications such as high frequency
power supplies and motor drives. CR Magnetics offers DC Immune (-D) models
that are designed to provide sensing of AC currents where DC offsets also exist. All
products are offered in standard sizes, with the most popular turns ratios. UL, CSA,
CE, and RoHS acceptance are all standard.
Applications
Motor Load Measurement
Power Meters
High Frequency Current Sensing
GENERAL PURPOSE VERTICAL PCB CURRENT TRANSFORMERS
Vmax RMS
Te (typ.)
DCR Ω
Frequency
Pin Diameter
1.8
1613
95
20 - 1 KHz
0.8 X 4.0 MM
20
7.0
1023
24
20 - 1 KHz
1.0 X 3.0 MM
50
13.7
2046
106
20 - 1 KHz
1.0 X 3.0 MM
CR8349-1000
50
11.6
1016
35
20 - 1 KHz
1.0 X 6.0 MM
CR8349-1500
75
15.5
1520
80
20 - 1 KHz
1.0 X 4.0 MM
CR8350-1000
100
16.5
1021
22
20 - 1 KHz
1.0 X 3.0 MM
CR8350-2000
200
31.0
2037
73
20 - 1 KHz
1.0 X 3.0 MM
CR8320-1600
Ir
10
CR8348-1000
CR8348-2000
Part Number
Features
High Ratio
Standard Footprints
Specifications
Maximum Continuous Primary Current
4 X Ir
Insulation Voltage
3500 Vac/1min
Storage Temp.
-45°C thru +85 °C
Operating Temp. General Purpose & Nickel -40°C thru +85 °C
Operating Temp. High Frequency
-40°C thru +65 °C
REVENUE GRADE VERTICAL PCB CURRENT TRANSFORMERS
Ir
40
Vmax RMS
Te (typ.)
DCR Ω
Frequency
Pin Diameter
CR8348-2500-N
7.5
2510
134
20 - 1 KHz
1.0 X 3.0 MM
CR8349-1000-N
50
5.1
1009
32
20 - 1 KHz
1.0 X 3.0 MM
CR8349-2500-N
75
11.2
2512
190
20 - 1 KHz
1.0 X 3.0 MM
CR8350-2500-N
100
10.5
2511
57
20 - 1 KHz
1.0 X 6.0 MM
Part Number
Regulatory Agencies
HIGH FREQUENCY VERTICAL PCB CURRENT TRANSFORMERS
Ir
50
Vmax RMS
Te (typ.)
DCR Ω
Frequency
Pin Diameter
CR8348-2000-F
3.7
2022
88
20 - 200KHz
1.0 X 6.0 MM
CR8349-2000-F
75
16.0
2024
109
20 - 200KHz
1.0 X 3.0 MM
CR8350-2000-F
100
10.0
2027
73
20 - 200KHz
1.0 X 3.0 MM
Part Number
DCR
DC IMMUNE VERTICAL PCB CURRENT TRANSFORMERS
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
Pin Diameter
CR8348-2000-D
50
4.0
2015
57
20 - 1 KHz
1.0 X 6.0 MM
CR8349-2000-D
75
7.6
2017
48
20 - 1 KHz
1.0 X 6.0 MM
CR8350-2000-D
100
6.3
2020
25
20 - 1 KHz
1.0 X 6.0 MM
V=
IxR
Te
R
VL = Vmax
-
V
I x DCR
Te
For best linearity, choose R such that V < 0.8 VL
VL
Ir = Maximum Input Current to be linearly sensed
Vmax = Maximum Voltage (Saturation) CT will develop
Te = Effective turns ratio including losses (All Specifications tested at 60 Hz)
PACKAGE AND PIN OUT DIMENSIONS (mm/in)
Part Number Prefix
CR8320
CR8348
CR8349
CR8350
A
B
C
D
min
max
max
max
5.5
19.4 19.5
8.2
E
E
0.3
12.7
F
E
0.3
G
E
0.3
N/A
N/A
H
typ
.22
.76
.77
.32
.50
6.7
23.5
25
11
15.2
9.5
19
1.90
.27
.93
.98
.43
.60
.37
.75
.07
9
26
28
17
19
1.90
.35
1.02
1.10
.67
.75
.07
12.8 37.5
.50
1.48
15.2 15.5
.60
.61
.16
39
14
25.4 12.7 33.02 3.81
1.54
.55
1.00
.50
1.30
I
4.0
B
D
PINOUT
A
3.0
See
Chart
(.118)
H
E
C
F
H1
G
.15
1.0 Typ. 4 Places
(.040)
CR8320 2 pins only
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
X1
90
E-mail: [email protected]
High Ratio Wire Lead Transformers
CR Magnetics CR8400 Series of Wire Lead Current Transformers are
available in a wide range of sizes and materials to meet any AC current
sensing needs. Our General Purpose designs are made from the
highest quality silicon steel cores available, and meet most of the common AC
current measurement needs. Our Revenue Grade CTs (-N) are made
from a nickel alloy core which provides the most linear response over
temperature and current level. A line of Ground Fault (-G) CTs for
measuring low AC currents including electrical shields. The High
Frequency (-F) products are designed for high frequency applications such
as high frequency power supplies and motor drives.
CR8400 SERIES
Applications
Motor Load Measurement
Power Meters
High Frequency Current Sensing
Ground Fault Sensing
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8401-1000
10
2.2
1009
49
20 - 1 KHz
CR8410-1000
20
3.1
1012
41
20 - 1 KHz
CR8420-1000
50
5.2
1018
22
20 - 1 KHz
CR8420-2000
75
9.0
1983
90
20 - 1 KHz
CR8448-1000
30
6.3
990
26
20 - 1 KHz
CR8448-2000
50
13.7
2046
106
20 - 1 KHz
CR8449-1000
50
11.6
1016
35
20 - 1 KHz
CR8449-2000
75
23
2046
150
20 - 1 KHz
CR8450-1000
100
16.5
1021
21
20 - 1 KHz
CR8450-2000
200
32
2037
73
20 - 1 KHz
Features
High Ratio
Standard Footprints
Specifications
Maximum Continuous Primary Current
4 X Ir
Insulation Voltage
3500 Vac/1min
Storage Temp.
-45°C thru +85 °C
Operating Temp. General Purpose & Nickel -40°C thru +85 °C
Operating Temp. High Frequency
-40°C thru +65 °C
Regulatory Agencies
REVENUE GRADE CURRENT TRANSFORMERS
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8448-2500-N
40
6.6
2510
134
20 - 1 KHz
CR8449-2500-N
50
10.0
2490
187
20 - 1 KHz
CR8450-2500-N
75
12.0
2512
143
20 - 1 KHz
CR8459-2000-N
200
11.5
2011
74
20 - 1 KHz
DCR
R
V
GROUND FAULT CURRENT TRANSFORMERS
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8401-1000-G
4
0.6
1005
49
20 - 1 KHz
CR8410-1000-G
7
0.8
1007
38
20 - 1 KHz
CR8420-1000-G
20
1.4
1011
44
20 - 1 KHz
IxR
Te
V=
VL = Vmax
-
I x DCR
Te
VL
Part Number
Ir
Vmax RMS
Te (typ.)
DCR Ω
Frequency
CR8448-2000-F
50
3.9
2015
90
20 - 200 KHz
CR8449-2000-F
75
7.4
2017
109
20 - 200 KHz
CR8450-2000-F
100
8.5
Ir = Maximum Input Current to be linearly sensed
2020
63
20 - 200 KHz
Vmax = Maximum Voltage (Saturation) CT will develop
Te = Effective turns ratio including losses (All Specifications tested at 60 Hz)
Part Number
Prefix
CR8401
CR8410
CR8420
CR8448
A
min
6.99
C
max
max
17.53 22.35
D
E
max
Typ
8.26
75.08
.275
.690
.880
.325
2.275
9.0
22
27.8
8.20
73
.35
.87
1.09
.323
2.87
15.0
30.0
36.0
9.2
100
.59
1.18
1.41
.36
3.94
7.11
.280
I
B
PACKAGE DIMENSIONS AND OUTLINE (mm/in)
B
23.42 29.46 11.05
.922
1.16
.435
100
Part Number
Prefix
CR8449
CR8450
CR8459
F
For best linearity, choose R such that V < 0.8 VL
HIGH FREQUENCY CURRENT TRANSFORMERS
A
B
C
D
E
min
max
max
max
Typ
9.14
26.0
31.8
17.0
100
.354
1.02
1.25
.67
3.94
13.08 36.83 43.18 13.97
D
A
C
88.9
.515
1.45
1.70
.55
19
48
60
17.5
200
.75
1.89
2.36
.67
7.88
3.50
3.94
E
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
91
E-mail: [email protected]
Current Transformers
GENERAL PURPOSE CURRENT TRANSFORMERS
Commercial & Metering Class Current Transformers
Current Transformers
RL
F
SFL
SFT
SHT
Applications
Ammeters
Energy Measurement
Watt/VAR/Watthour Measurement
Current Sensing Relays
Features
Low Cost
Core Secured via Epoxy Resin
Hand Tuned Accuracy
Common Ratios in Stock
Regulatory Agencies
SHL
RBT
RT
RBL
The CR Magnetics line of Instrumentation Grade Electrical
Current Transformers are available in either Commercial or
ANSI Metering Class. The Commercial Class transformers
are lower cost and well-suited for current monitoring applications. The ANSI Metering Class transformers are highercost units intended for power monitoring applications
where high accuracy and minimum phase angle error are
required. Twelve different window openings and eight different mounting styles along with numerous secondary
ratios are available to meet most applications. This short
form catalog shows an overview of our most popular 5
amp secondary transformers. Contact factory for different
sizes or unique electrical requirements.
BASIC SPECIFICATIONS
Basic Accuracy
Thermal Drift
Operating Temperature
Installation Category
Pollution Degree
Insulation Voltage
Frequency Range
Torque Spec on Studs
10% FS or Better (ANSI)
100 PPM/°C
-20° C to +75° C
CAT II
2
3500 Vac/1min
50Hz - 400Hz
10 in/lb.
CUSTOM OPTIONS
Ultra-Low Frequency to 20 Hz
1.0, 0.2,and 0.1 Amp Secondary Ratios
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
92
E-mail: [email protected]
Commercial & ANSI Metering Class Current Transformers
DIMENSIONS
G
UL 1015 #16 AWG
MOUNTING
D
HOLE PATTERN
F
24" (610) LONG
#8-32 (Use M4 terminal)
A
B
B
A
D
E
C
RBT
G
F
#8-32 (Use M4 terminal)
MOUNTING
E
HOLE PATTERN
#8-32
(Use M4 terminal)
A
B
B
D
A
C
SFT
C
RT
G
F
MOUNTING
E
G
HOLE PATTERN
MOUNTING
D
HOLE PATTERN
F
UL1015 #16AWG
Current Transformers
C
RL
A
24" (610) LONG
A
F
B
UL1015 #16 AWG
B
24" (610) LONG
E
C
SFL
C
RBL
UL1015 #16AWG 24" (610) LONG
#8-32 (Use M4 terminal)
A
A
B
B
SHT
C
C
SHL
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
93
E-mail: [email protected]
Commercial Class Current Transformers
PART NUMBERS
SERIES
STYLE
RL
SFT
Current Transformers
CR2 SFL
SHT
SHL
RL
SFT
SFL
CR5
SHT
SHL
RT
RBT*
F
RBL*
RL
SFT
SFL
CR7
SHT
SHL
RT
RBT
RBL
RATIO
SUFFIX
DIMENSIONS
ACCURACY SPECIFICATIONS
CURRENT
RATIO
ACCURACY
AT 60HZ
BURDEN VA
AT 60 HZ
50:5
± 3%
2.0
60:5
± 2%
2.0
75.5
± 2%
2.0
80:5
± 2%
2.0
100:5
± 1%
2.0
120:5
± 1%
2.5
125:5
± 1%
2.5
150:5
± 1%
4.0
200:5
± 1%
4.0
250:5
± 1%
6.0
300:5
± 1%
8.0
50:5
± 2%
1.0
75.5
± 2%
1.5
100:5
± 2%
2.0
150:5
± 1%
5.0
200:5
± 1%
5.0
250:5
± 1%
10.0
300:5
± 1%
12.5
401
1.56
(39.6) 3.83 1.09
(97.3) (27.7)
400:5
± 1%
12.5
500:5
± 1%
20.0
601
3.62 1.13
(91.9) (28.7)
600:5
± 1%
25.0
750:5
± 1%
25.0
801
3.90 1.25 3.88 4.50 .44
(99.1) (31.8) (98.6) (114.3) (11.2)
.27
(6.9)
800:5
± 1%
25.0
1.25 3.88 4.50 .44
(31.8) (98.6) (114.3) (11.2)
1.10
(27.4)
.27
(6.9)
1000:5
± 1%
25.0
1200:5
± 1%
30.0
101
3.70
(94.0)
4.70
(919.4)
100:5
± 2%
2.5
4.85 2.13 3.78 1.75 .25
(123.2) (54.1) (96.0) (44.5) (6.4)
.31
(7.9)
150:5
± 1%
5.0
201
200:5
± 1%
5.0
4.85 2.13 3.78 1.75 .25
(123.2) (54.1) (96.0) (44.5) (6.4)
.31
(7.9)
250:5
± 1%
5.0
300:5
± 1%
12
400:5
± 1%
15
500:5
± 1%
25
601
2.50
(63.5) 4.70 1.10
(119.4) (27.9)
600:5
± 1%
30
750:5
± 1%
30
801
4.61 1.10
(117.1) (27.9)
800:5
± 1%
35
.28
(7.1)
1000:5
± 1%
30
122
4.94 1.25 5.75 6.5
.28
(125.5) (31.8) (146.1) (7.1) (16.5)
1200:5
± 1%
35
4.70 1.25 5.75 6.5
.28
(125.5) (31.8) (146.1) (16.5) (7.1)
.28
(7.1)
1500:5
± 1%
40
162
1600:5
± 1%
40
500
A
B
C
D
E
F
G
600
2.46 1.05
(62.5) (26.7)
800
2.68 2.00 1.75 1.75 .27
(68.1) (50.8) (44.5) (44.5) (6.9)
.31
(7.9)
121
1.13 2.68 2.00 (1.75 1.75 .27
(28.7) (68.1) (50.8) (44.5) (44.5) (6.9)
.31
(7.9)
750
101
1250
151
2.71 0.95
(68.8) (24.1)
251
2.71 0.95
(68.8) (24.1)
500
3.56 1.10
(90.4) (27.9)
101
3.78 2.15 2.75 1.77 .21
(96.0) (54.6) (69.9) (45.0) (5.3)
201
301
750
151
201
251
301
501
751
102
122
151
251
301
401
501
751
102
152
3.78 2.15 2.75 1.77 .21
(96.0) (54.6) (69.9) (45.0) (5.3)
.31
(7.9)
.31
(7.9)
3.83 1.09
(97.3) (27.7)
4.70 1.10
(119.4) (27.9)
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
94
E-mail: [email protected]
Commercial Class Current Transformers
PART NUMBERS
SERIES
STYLE
RL
SFT
RT
RBT
RBL
RL
SFT
CR76
SFL
RATIO
SUFFIX
CURRENT
RATIO
ACCURACY
AT 60HZ
BURDEN VA
AT 60 HZ
50:5
± 3%
2.0
75.5
± 1%
0.5
100:5
± 1%
1.0
150:5
± 1%
2.5
200:5
± 1%
4.0
250:5
± 1%
6.0
300:5
± 1%
7.5
400:5
± 1%
10.0
500:5
± 1%
12.5
600:5
± 1%
15.0
750:5
± 1%
7.0
800:5
± 1%
8.0
1000:5
± 1%
10.0
1200:5
± 1%
12.5
200:5
± 1%
5.0
250:5
± 1%
5.0
300:5
± 1%
6.0
400:5
± 1%
10.0
500:5
± 1%
10.0
600:5
± 1%
10.0
750:5
± 1%
10.0
800:5
± 1%
12.5
1000:5
± 1%
10.0
RBT
1200:5
± 1%
10.0
1500:5
± 1%
12.5
1600:5
± 1%
12.5
RBL
2000:5
± 1%
15.0
500
50:5
± 2%
1.0
600
60:5
± 1%
2.0
750
75.5
± 1%
2.0
800
80:5
± 1%
2.0
CR1A RL
100:5
± 1%
2.5
120:5
± 1%
3.0
1250
125:5
± 1%
3.0
151
150:5
± 1%
4.0
201
200:5
± 1%
5.0
251
250:5
± 1%
7.5
A
500
750
101
151
B
C
D
E
F
G
3.50 1.09 2.70 1.70 .21
(88.9) (27.7) (68.6) (43.2) (5.3)
.31
(7.9)
3.63 2.15 2.70 1.70 .21
(92.2) (54.6) (68.6) (43.2) (5.3)
.31
(7.9)
201
251
301
401
3.63 2.15
(92.2) (54.6)
2.06
(52.3)
3.62 1.10
(91.9) (27.9)
501
601
3.90 1.25 3.88 4.50 .27
(99.1) (31.8) (98.6) (114.3) (6.9)
751
801
102
3.70 1.25 3.88 4.50 .27
(94.0) (31.8) (98.6) (114.3) (6.9)
122
251
301
401
501
601
801
102
122
152
162
202
101
121
.44
(11.2)
.44
(11.2)
4.50 1.09
(114.3) (27.7)
201
751
RT
ACCURACY SPECIFICATIONS
4.68 2.08 3.70 1.75 .25
(128.9) (52.8) (44.0) (44.5) (6.4)
.31
(7.9)
4.68 2.08 3.70 1.75 .25
(118.9) (52.8) (44.0) (44.5) (6.4)
.31
(7.9)
3.00
(76.2)
4.62 1.10
(117.3) (27.9)
4.94 1.25 5.75 6.50 .28
(125.5) (31.8) (146.1) (165.1) (7.1)
.28
(7.1)
4.70 1.25 5.75 6.50 .28
(119.4) (31.8) (146.1) (165.1) (7.1)
.28
(7.1)
.64 1.99 1.25
(16.3) (31.8) (31.8)
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
95
E-mail: [email protected]
Current Transformers
CR56
SFL
DIMENSIONS
F
ANSI Metering Class Current Transformers
SERIES
STYLE
DIMENSIONS
RATIO
SUFFIX
A
B
C
D
E
ANSI METERING CLASS @ 60 HZ
F
G
Current Transformers
RL
RL
SFT
50:5
4.8
-
-
-
-
600
60:5
1.2
4.8
-
-
-
750
75:5
1.2
2.4
-
-
-
800
80:5
1.2
2.4
4.8
-
-
100:5
1.2
2.4
4.8
-
-
120:5
1.2
2.4
2.4
4.8
-
1250
125:5
0.6
1.2
2.4
4.8-
-
151
150:5
0.6
0.6
1.2
2.4
4.8
201
200:5
0.3
0.3
1.2
1.2
2.4
251
250:5
0.3
0.3
0.6
1.2
2.4
301
300:5
0.3
0.3
0.6
0.6
1.2
500
50:5
4.8
-
-
-
-
100:5
2.4
4.8
-
-
-
151
150:5
0.6
1.2
2.4
4.8
-
201
200:5
0.6
0.6
1.2
2.4
4.8
250:5
0.6
0.6
1.2
2.4
2.4
300:5
0.3
0.3
0.6
1.2
2.4
400:5
0.3
0.3
0.6
1.2
1.2
500:5
0.3
0.3
0.6
0.6
1.2
600:5
0.3
0.3
0.3
0.6
1.2
750:5
0.3
0.3
0.3
0.6
0.6
800:5
0.3
0.3
0.3
0.6
0.6
1000:5
0.3
0.3
0.3
0.3
0.6
1200:5
0.3
0.3
0.3
0.3
0.3
100:5
1.2
2.4
-
-
-
150:5
1.2
1.2
2.4
4.8
-
200:5
0.6
1.2
2.4
2.4
4.8
250:5
0.3
0.6
1.2
2.4
4.8
300:5
0.3
0.3
1.2
2.4
2.4
400:5
0.3
0.3
0.6
1.2
1.2
500:5
0.3
0.3
0.6
1.2
1.2
600:5
0.3
0.3
0.6
0.6
1.2
750:5
0.3
0.3
0.3
0.6
1.2
800:5
0.3
0.3
0.3
0.6
0.6
1000:5
0.3
0.3
0.3
0.3
0.6
1200:5
0.3
0.3
0.3
0.3
0.3
1500:5
0.3
0.3
0.3
0.3
0.3
121
101
251
1.0
2.47 1.75
(25.4) (62.7) (44.5)
3.56 1.10
(90.4) (27.9)
3.77 2.15
(95.8) (54.6)
301
CR5A
SFL
401
1.56 3.77 2.15 2.75 1.77
(39.6) (95.4) (54.6) (69.9) (45.0)
.21
(5.3)
.31
(7.9)
501
SHT
601
751
3.70 1.10 2.75 1.77
(94.0) (27.9) (69.9) (45.0)
.21
(5.3)
.31
(7.9)
801
SHL
F
102
3.70 1.10
(94.0) (27.9)
122
RL
101
151
4.08 1.10
(103.6) (27.9)
201
SFT
251
301
4.21 2.12 3.34 1.75
(106.9) (54.6) (84.8) (44.5)
.25
(6.4)
.31
(7.9)
401
CR6A
SFL
501
2.06 4.21 2.12 3.34 1.75
(52.3) (106.9) (54.6) (84.8) (44.5)
601
SHT
751
801
4.22 1.10
(107.2) (27.9)
102
SHL
B0.1 B0.2 B0.5 B0.9 B1.8
500
101
CR2DA
CURRENT
RATIO
PART NUMBERS
122
152
4.22 1.10
(107.2) (27.9)
.25
(6.4)
.31
(7.9)
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ANSI Metering Class Current Transformers
SERIES
STYLE
RL
SFT
SFL
SHT
SHL
RL
CR8
SHT
SHL
RL
CR170
SHT
SHL
RATIO
SUFFIX
101
151
201
251
301
401
501
601
751
801
102
122
152
162
201
251
301
401
501
601
751
801
102
122
152
162
202
252
302
322
402
201
251
301
401
501
601
751
801
102
122
152
162
202
252
302
322
402
A
B
C
D
E
ANSI METERING CLASS @ 60 HZ
F
G
4.70 1.10
(119.4) (27.9)
100:5
150:5
200:5
4.85 2.13 3.78 1.75
.25
(123.2) (54.1) (96.0) (44.5) (6.4)
.31
(7.9)
2.50 4.85 2.13 3.78 1.75
.25
(63.5) (123.2) (54.1) (96.0) (44.5) (6.4)
.31
(7.9)
250:5
300:5
400:5
500:5
600:5
750:5
800:5
4.70 1.10
(119.4) (27.9)
1000:5
1200:5
4.70
(119.4)
5.73
(145.5)
1500:5
1.10
(27.9)
1.15
(29.2)
1600:5
200:5
250:5
300:5
400:5
500:5
600:5
750:5
800:5
3.25 5.73 1.15
(82.6) (145.5) (29.2)
1000:5
1200:5
1500:5
1600:5
2000:5
2500:5
3000:5
5.73
(145.5)
6.73
(170.9)
3200:5
1.15
(29.2)
1.25
(31.8)
4000:5
200:5
250:5
300:5
400:5
500:5
600:5
750:5
800:5
4.25 6.73 1.28
(108) (170.9) (32.5)
1000:5
1200:5
1500:5
1600:5
2000:5
2500:5
3000:5
3200:5
6.73 1.28
(170.9) (32.5)
4000:5
B0.1 B0.2 B0.5 B0.9 B1.8
1.2
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1.2
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
4.8
1.2
1.2
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1.2
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1.2
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
4.8
2.4
1.2
1.2
0.6
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
2.4
1.2
1.2
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
2.4
1.2
1.2
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
4.8
4.8
2.4
2.4
1.2
1.2
0.6
0.6
0.6
0.6
0.3
0.3
0.3
4.8
2.4
2.4
1.2
0.6
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
2.4
2.4
1.2
1.2
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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4.8
4.8
2.4
2.4
1.2
1.2
0.6
0.6
0.6
0.6
0.3
0.3
4.8
4.8
2.4
2.4
1.2
1.2
1.2
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
2.4
1.2
1.2
0.6
0.6
0.6
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
Current Transformers
CR7A
DIMENSIONS
CURRENT
RATIO
PART NUMBERS
F
Split Core Current Transformer
CR3100 Series
The CR3100 Series Split Core Current Transformer is
designed to provide a low cost method to monitoring electrical current. A unique hinge and locking snap allows attachment without interrupting the current-carrying wire. High
secondary turn will develop signals up to 10.0 VAC across a
burden resistor.
CR3110-3000
CR3109-1500
Current Transformers
Applications
Portable Instruments
Sub-Metering
Monitor Motor Loads
Features
Small Size
Low Cost
High Secondary Turns
Secure Locking Hinge
CR3111-3000
CR3113-2000
Specifications
PART NUMBERS
CR3110 - 3000
CR3111 - 3000
CR3113 - 2000
Maximum Continuous Primary Current
Insulation Voltage
Storage Temp.
Operating Temp.
75 AMP
100 AMP
200 AMP
SPLIT CORE CURRENT TRANSFORMERS
Part Number
CR3109-1500
CR3110-3000
CR3111-3000
CR3113-2000
Imax
30
75
100
150
Vmax RMS
5
15
19
16
DCR Ω
187
515
390
58
Te (typ.)
1510
3100
3150
2125
Regulatory Agencies
Frequency
20 - 1 KHz
20 - 1 KHz
20 - 1 KHz
20 - 1 KHz
CR3110-3000 ONLY
Ir = Maximum Input Current to be linearly sensed
Vmax = Maximum Voltage (Saturation) CT will develop
Te = Effective turns ratio including losses (All Specifications tested at 60 Hz)
F
I
DCR
OUTLINE DRAWING
A
B
D
R
V
E
V=
C
4 X Ir
3500 Vac/1min
-45°C thru +85°C
-40°C thru +65 °C
F
IxR
Te
VL = Vmax
-
I x DCR
Te
For best linearity, choose R such that V < 0.8 VL
VL
A
B
C
D
E
F
CR3110-3000
1.04
0.40
1.58
6.00
1.04
0.24
CR3111-3000
1.27
0.58
1.63
6.10
1.27
0.20
CR3113-2000
2.68
0.98
2.68
114
2.68
0.20
PART NUMBER
CR3109-1500
I
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Split Core Current Transformer
610-1000T
The 610-1000T Split Core Current Transformer is designed for
assembly to an existing electrical installation without the need for
dismantling the primary bus or cables. It incorporates a snap fit
between the fixed and removable sections.
This transformer is intended for use with high input impedance
devices that require signal voltages up to 5 VAC.
Application
PART NUMBERS
For Energy Management Systems and Instrumentation
1000 Turns
610 - 1000T
Equipment having a High Input Impedance, eg. 14K ohms
minimum
OUTLINE DRAWING
Frequency
50-400 Hz
Insulation Level
0.6 kV, BIL 10 kV full wave
1.47
2.84
Construction
The core and windings are encased in UL approved plastic
Current Transformers
The output can be rectified and filtered for devices requiring DC
input. The non-linearity and voltage drop of the rectifiers and
filters must be considered in the choice of the loading
impedance.
Continuous Thermal Current Rating
Factor 330A at 30° C amb
1.30
0.78
250A at 55° C amb
2.75
Flexible Leads
3.0
10 OHMS
UL 1015 105° C, CSA approved, #18 AWG, 24” long unless
2.5
otherwise specified
Approximate Weight
Secondary Volts
2.0
5 OHMS
10 oz
1.5
Regulatory Agencies
1.0
2 OHMS
0.5
0
0
50
100
150
200
PRIMARY AMPERES
250
300
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F
Split Core Current Transformer
613 Series
The 613 Series Split Core Current Transformer is designed
for assembly to an existing electrical installation without the
need for dismantling the primary bus or cables.
Current Transformers
The Model 613-1000T is intended for use with high input
impedance devices that require signal voltages up to 5 VAC.
The output can be rectified and filtered for devices requiring
DC input. The non-linearity and voltage drop of the rectifiers
and filters must be considered in the choice of the loading
impedance.
PART NUMBERS
Part Number Current Ratio
613-101
100:5
613-1250
125:5
613-151
150:5
613-1750
175:5
613-201
200:5
613-251
250:5
613-301
300:5
613-401
400:5
613-1000T
100:0.1
Burden VA
1.00
1.25
1.50
1.75
2.50
2.50
3.00
3.00
Accuracy at 60 Hz
±5%
±5%
±5%
±5%
±4%
±4%
±2%
±2%
±3%
See Graph
1.25
0.90
Insulation
0.6 kV, BIL 10 kV full wave
Construction
The core and windings are encased in UL approved plastic
Flexible Leads
UL 1015 105° C, CSA approved, #16 AWG, 24” long unless
otherwise specified
1.95
3.70
Approximate Weight
1 lb
0.80
2.70
3.0
10 OHMS
2.5
2.0
Secondary Volts
Frequency
50-400Hz
Continuous Thermal Current Rating
Factor Models 613-101 – 613-401:
1.33 at 30° C amb
1.00 at 55° C amb
Model 613-1000T:
330A at 30° C amb
250A at 55° C amb
OUTLINE DRAWING
F
Application
For Energy Management Systems and Instrumentation
Equipment
5 OHMS
1.5
Caution
Proper safety precautions must be followed during installation by a trained electrician. Never install while bus is energized. The current transformer must have its secondary terminals short circuited or the burden connected, before energizing the primary circuit.
Regulatory Agencies
1.0
2 OHMS
0.5
0
0
50
100
150
200
PRIMARY AMPERES
250
300
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Split Core Current Transformer
603 & 603D Series
The 603 & 603D Split Core Current Transformers are
designed for assembly to an existing electrical installation
without the need for dismantling the primary bus or cables.
These transformers are intended for use with high input
impedance devices that require signal voltages up to 5 VAC.
PART NUMBERS
603 - 500T
500 Turns
603D - 500T
500 Turns
OUTLINE DRAWING
Application
For Energy Management Systems and Instrumentation
Equipment Having a High Input Impedance, eg. 14K ohms
minimum
Frequency
50-400Hz
Construction
The core and windings are encased in UL approved plastic
Insulation Level
0.6 kV, BIL 10 kV full wave
Continuous Thermal Current Rating
Factor Model 603:
350A at 30° C amb.
260A at 55° C amb.
Flexible Leads
UL 1015 105° C, CSA approved, #22 AWG, 24” long unless
otherwise specified
TYPICAL PERFORMANCE CHARACTERISTICS MODEL 603-500T
(WITH 500 TURNS)
10 OHMS
Approximate Weight
Model 603-500T: 10 oz.
Model 603D-500T: 12 oz.
SECONDARY VOLTS
5.0
Regulatory Agencies
4.0
5 OHMS
3.0
2.0
2 OHMS
1.0
0
0
50
100
150
200
250
300
PRIMARY AMPERES
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Current Transformers
The output can be rectified and filtered for devices
requiring DC input. The non-linearity and voltage drop of
the rectifiers and filters must be considered in the choice of
the loading impedance.
F
Split Core Current Transformer
604 Series
The 604 Series Split Core Current Transformer is designed
for assembly to an existing electrical installation without the
need for dismantling the primary bus or cables.
Current Transformers
The Model 604-1000T is intended for use with high input
impedance devices.
The output can be rectified and filtered for devices
requiring DC input. The non-linearity and voltage drop of the
rectifiers and filters must be considered in the choice of the
loading impedance.
Application
PART NUMBERS
Part Number
604-101
604-1250
604-151
604-1750
604-201
604-251
604-301
604-351
604-401
604-1000T
Current Ratio
100:5
125:5
150:5
175:5
200:5
250:5
300:5
350:5
400:5
100:0.1
For Energy Management Systems and Instrumentation
Burden VA
1.00
1.00
1.00
1.00
1.00
2.00
2.00
2.50
2.50
Accuracy at 60 Hz
±5%
±5%
±4%
±3%
±2%
±2%
±1.5%
±1.5%
±1.5%
±3%
See Graph
Frequency
50-400Hz
Insulation Level
0.6 kV, BIL 10 kV full wave
Continuous Thermal Current Rating
Factor Models 604-101 – 604-401:
1.33 at 30° C amb
1.00 at 55° C amb
OUTLINE DRAWING
Model 604-1000T:
3.38
1.20
450A at 30° C amb
350A at 55° C amb
4.78
3.52
4.12
2.50
Terminals
1.53
10-32 brass studs with one flatwasher and two regular nuts
Flexible Leads
1.42
20
TYPICAL PERFORMANCE CHARACTERISTICS MODEL 604-1000T
(WITH 1000 TURNS)
200 OHMS
UL 1015 105° C, CSA approved, #16 AWG, 24” long unless
otherwise specified
18
16
150 OHMS
SECONDARY VOLTS
F
Approximate Weight
2.5 lbs
14
12
100 OHMS
10
Regulatory Agencies
8
6
50 OHMS
4
2
0
0
10
20
30
40 50 60 70 80
PRIMARY AMPERES
90
100
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Split Core Current Transformer
600 & 601 Series
Application
For Energy Management Systems and Instrumentation
Frequency
50-400Hz
Construction
The core and windings are encased in UL approved plastic
Insulation Level
0.6 kV, BIL 10 kV full wave
Terminals
8-32 brass studs with one flatwasher and two regular nuts
The 600 & 601 Series Split Core Current Transformers are
designed for assembly to an existing electrical installation without
the need for dismantling the primary bus or cables.
Flexible Leads
UL 1015 105° C, CSA approved, #16 AWG, 24” long unless
otherwise specified
OUTLINE DRAWING
Approximate Weight
1.5 lbs.
MODEL 601
MODEL 600
X2
X1
END
THIS ABLE
OV
REM
END
THIS ABLE
OV
REM
H1
X2
X1
H1
Caution
Proper safety precautions must be followed during installation by a trained electrician. Never install while bus is energized. The current transformer must have its secondary terminals short circuited or the burden connected, before energizing the primary circuit.
LABEL
LABEL
4.25
6.75
2.00
4.50
THIS END
REMOVABLE
THIS END
REMOVABLE
LABEL
7.75
Regulatory Agencies
6.75
5.50
Current Transformers
Continuous Thermal Current Rating
Factor 1.33 at 30° C amb
1.00 at 55° C amb
4.50
H1
H1
X1 X2
F
X1 X2
0.38
3.50
(2) 0.19 DIA. HOLES
0.38
6.00
1.13
(2) 0.19 DIA. HOLES
1.13
PART NUMBERS
Part Number Current Ratio
600-401
600-501
600-601
600-801
600-102
600-122
600-152
600-162
600-202
400:5A
500:5A
600:5A
800:5A
1000:5A
1200:5A
1500:5A
1600:5A
2000:5A
VA at
1% Class
1.5
2.0
2.5
5.0
7.5
15.0
20.0
20.0
30.0
ANSI Metering Class at 60Hz
BO.1
2.4
2.4
2.4
1.2
1.2
0.6
0.6
0.6
0.6
BO.2 BO.5
--------------2.4 -------1.2 2.4
1.2 2.4
1.2 1.2
0.6 1.2
0.6 1.2
0.6 0.6
Part Number Current Ratio
601-401
601-501
601-601
601-801
601-102
601-122
601-152
601-162
601-202
400:5A
500:5A
600:5A
800:5A
1000:5A
1200:5A
1500:5A
1600:5A
2000:5A
VA at
1% Class
1.0
1.5
2.0
2.5
5.0
10.0
15.0
15.0
20.0
ANSI Metering Class at 60Hz
BO.1
4.8
4.8
2.4
1.2
1.2
1.2
1.2
1.2
0.6
BO.2
-------4.8
4.8
2.4
1.2
1.2
1.2
1.2
0.6
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BO.5
---------------------4.8
4.8
2.4
1.2
1.2
1.2
Split Core Current Transformer
The 606 & 608 Split Core Current Transformers are designed
for assembly to an existing electrical installation without the need
for dismantling the primary bus or cables. These current transformers are a weather proof design suitable for use outdoor or in
direct burial applications. The transformer cases are UV stabilized
thermoplastic and filled with polyurethane resin. The mating surfaces of the transformer cores are protected by a rubber ‘O’ ring.
606 & 608 Series
Current Transformers
Application
For Energy Management Systems and Instrumentation
Equipment
Frequency
50-400Hz
Insulation Level
0.6 kV, BIL 10 kV full wave
OUTLINE DRAWING
Continuous Thermal Current Rating Factor
Model 606: 1.33 at 30° C amb., 1.00 at 55° C amb Models
608-501 – 608-202:
1.33 at 30° C amb., 1.00 at 55° C amb Models
608-252 – 608-322:
1.00 at 30° C amb., 0.70 at 55° C amb
Secondary Cable
Two No. 16 AWG, 6’ Long, Direct Burial, UV Res. UL Type TC
606-2.70
608-6.25
606-5.80
608-9.25
Weight
Model 606: 4.5 lbs
Model 608: 7.5 lbs
Regulatory Agencies
606-2.75
608-2.60
F
1.75
6.05
PART NUMBERS
Part
Number
606-201
606-251
606-301
606-351
606-402
606-501
606-601
606-751
606-801
606-102
606-122
Current
Ratio
200:5A
250:5A
300:5A
350:5A
400:5A
500:5A
600:5A
750:5A
800:5A
1000:5A
1200:5A
Burden
VA
2.5
3.0
3.5
4.0
5.0
6.0
8.0
10.0
12.0
15.0
20.0
ANSI Metering Class at
60Hz
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
Part
Number
608-501
608-601
608-801
608-102
608-122
608-152
608-162
608-202
608-252
608-302
608-322
Current
Ratio
500:5A
600:5A
800:5A
1000:5A
1200:5A
1500:5A
1600:5A
2000:5A
2000:5A
3000:5A
3200:5A
Burden
VA
6.0
8.0
12.0
13.0
16.0
25.0
27.0
33.0
42.0
50.0
54.0
ANSI Metering Class at
60Hz
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
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Split Core Current Transformer
The 500 Series Split Core Current Transformer is designed to be assembled
around an existing conductor or bus bar. The end marked “This end removable” may be disassembled and then reassembled around the conductors.
Terminals are 8-32 brass studs with one flatwasher, lockwsher and regular
nut. Flexible Leads are UL 1015 105° C, CSA approved, #16 AWG, 24” long
unless otherwise specified
Model 500 Series
Application
Metering
Insulation Level
0.6 kV, BIL 10 kV full wave
OUTLINE DRAWING
Continuous Thermal Current Rating Factor
1.33 at 30° C amb., 1.00 at 55° C amb
0.75
Approximate Weight
8 to 18 lbs
0.44
B1
A1
A2
A3
Regulatory Agencies
B3
B2
1.63
(4) 0.31 Dia. holes
How to order take apart C.T.’S
DIMENSIONS
‘A1’
4.1
4.1
4.1
4.1
4.1
4.1
5.1
5.1
5.1
5.1
5.1
5.1
5.8
5.8
5.8
5.8
5.8
5.8
8.0
8.0
8.0
8.0
8.0
8.0
10.1
10.1
10.1
10.1
10.1
10.1
‘A2’
6.4
6.4
6.4
6.4
6.4
6.4
7.2
7.2
7.2
7.2
7.2
7.2
7.0
7.0
7.0
7.0
7.0
7.0
9.5
9.5
9.5
9.5
9.5
9.5
11.6
11.6
11.6
11.6
11.6
11.6
‘A3’
7.3
7.3
7.3
7.3
7.3
7.3
8.3
8.3
8.3
8.3
8.3
8.3
9.0
9.0
9.0
9.0
9.0
9.0
11.1
11.1
11.1
11.1
11.1
11.1
13.2
13.2
13.2
13.2
13.2
13.2
‘B1’
7.1
11.7
14.1
18.1
24.0
30.1
7.1
11.7
14.1
18.1
24.0
30.1
7.1
11.7
14.1
18.1
24.0
30.1
7.1
11.7
14.1
18.1
24.0
30.1
7.1
11.7
14.1
18.1
24.0
30.1
MAX RATIO
‘B2’
10.0
14.5
17.0
21.0
27.0
33.0
10.0
14.5
17.0
21.0
27.0
33.0
10.0
14.5
17.0
21.0
27.0
33.0
10.0
14.5
17.0
21.0
27.0
33.0
10.0
14.5
17.0
21.0
27.0
33.0
‘B3’
10.9
15.4
17.9
21.9
27.9
33.9
10.9
15.4
17.9
21.9
27.9
33.9
10.9
15.4
17.9
21.9
27.9
33.9
10.9
15.4
17.9
21.9
27.9
33.9
10.9
15.4
17.9
21.9
27.9
33.9
T or L for Terminals or Leads
Window width (A1)
Model
4000:5
8000:5
8000:5
8000:5
10000:5
10000:5
4000:5
8000:5
8000:5
8000:5
10000:5
10000:5
4000:5
8000:5
8000:5
8000:5
10000:5
10000:5
4000:5
8000:5
8000:5
8000:5
10000:5
10000:5
4000:5
8000:5
8000:5
8000:5
10000:5
10000:5
500 X- XXX
The letter “X”
must appear here
X
XXX -
XXX
Ratio
Window length (B1)
Example: 500 T - 041 X 117 - 133
The accuracy table below is for the 500T-041 X 117. Accuracies for other sizes are
available from the factory. The dimensions in the table at the left are
standard sizes. Other window lengths (B1) may be accommodated on special order.
Window widths (A1) other than those listed are not available.
Current Ratio
Accuracy class with U.P.F. burden
300:5
400:5
500:5
600:5
750:5
800:5
1000:5
1200:5
1500:5
2000:5
2500:5
3000:5
3500:5
4000:5
5000:5
5000:5
±5% at 1.5 VA
±3% at 2.5 VA
±2% at 2.5 VA
±1% at 4 VA
±1% at 5 VA
±1% at 5 VA
±1% at 7.5 VA
±1% at 10.0 VA
±1% at 12.5 VA
±1% at 15.0 VA
±1% at 25.0 VA
±1% at 25.0 VA
±1% at 25.0 VA
±1% at 25.0 VA
±1% at 30.0 VA
±1% at 40.0 VA
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
105
Current Transformers
Frequency
50-400Hz
E-mail: [email protected]
F
Split Core Current Transformer
Current Transformers
CR3120, CR3130, CR3140 Series
F
The CR3120, CR3130, CR3140 Split Core Current
Transformers are designed for assembly to an existing electrical
installation without the need for dismantling the primary bus or
cables. The CR3120, CR3130, CR3140 Series has
one of the highest industry standards both for interleaving and the
self locking mechanism.
Application
For Energy Management Systems and Instrumentation
Equipment
Frequency
50-400Hz
Insulation Level
0.6 kV, BIL 10 kV full wave
OUTLINE DRAWING
Features:
Output 0.333 VAC at Rated Current
Phase Angle <2 degrees measured at 50% rated current
Linearity Accuracy +/- 1%
E
Secondary Cable
Two No. 16 AWG, 8’ Long,
SIZE CR3120 CR3130 CR3140
A
B
D
C
WHT
A
2.000” 3.250” 4.750”
B
2.100” 3.350” 5.000”
C
0.610” 1.000” 1.000”
D
0.750” 1.250” 2.000”
E
0.750” 1.250” 2.000”
Weight
CR3120: 1.0 lbs
CR3130: 1.0 lbs
CR3140: 1.0 lbs
Regulatory Agencies
ONE TURN
CUSTOMER SUPPLIED
BLK
PART NUMBERS
Part
Number
Current
Ratio
Part
Number
Current
Ratio
Part
Number
Current
Ratio
CR3120-5
5:0.333V
CR3130-50
50:0.333V
CR3140-100
100:0.333V
CR3120-10
10:0.333V
CR3130-100
100:0.333V
CR3140-200
200:0.333V
CR3120-25
25:0.333V
CR3130-150
150:0.333V
CR3140-400
400:0.333V
CR3120-50
50:0.333V
CR3130-200
200:0.333V
CR3140-600
600:0.333V
CR3120-70
70:0.333V
CR3130-250
250:0.333V
CR3140-800
800:0.333V
CR3120-100
100:0.333V
CR3130-300
300:0.333V
CR3140-1000
1000:0.333V
CR3120-150
150:0.333V
CR3130-400
400:0.333V
CR3140-1200
1200:0.333V
CR3120-200
200:0.333V
CR3130-600
600:0.333V
CR3140-1500
1500:0.333V
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
106
E-mail: [email protected]
Medium Voltage Current Transformer
CTW3-60-T50 & CTWH3-60-T50
Applications
Metering and relaying.
Frequency
50 - 400 Hz.
Maximum System Voltage
5.6kV, BIL 60kV full wave.
OUTLINE DRAWING
A
0.66
5.50
5.50
1.12
BAR SIZES
PRIMARY
DIMENSIONS
A
B
CURRENT
7.00
5 TO 150A
200 TO 600A
WITHOUT PRIMARY BARS
0.19
0.25
1.50
2.00
WITH PRIMARY BARS
13.00
12.00
9.25
0.50
Supplied with short circuiting secondary terminal cover
Other ratios, secondary currents and dual ratios are available. Refer to factory.
4.75
3.75
B
0.62
Secondary Terminals
Brass studs No. 10-32 with one flatwasher, lockwasher and
regular nut.
Vacuum cast in polyurethane resin.
(4) SLOTS
0.40 X 0.66
H1
Primary Terminals
1/2-13 bolts with one Belleville washer.
SLOTS
0.56 X 0.75
BOTH SIDES
H2
H1
H2
5.75
CAUTION: Use only the Belleville washers supplied. Tighten to between 25 and 30 foot-pounds. Do not overtighten.
Part Number*
Current
Ratio
Relay
Class
CTW3-60-T50-050
CTW3-60-T50-100
CTW3-60-T50-150
CTW3-60-T50-200
CTW3-60-T50-250
CTW3-60-T50-300
CTW3-60-T50-400
CTW3-60-T50-500
CTW3-60-T50-750
CTW3-60-T50-101
CTW3-60-T50-151
CTW3-60-T50-201
CTW3-60-T50-251
CTW3-60-T50-301
CTW3-60-T50-401
CTW3-60-T50-501
CTW3-60-T50-601
5:5
10:5
15:5
20:5
25:5
30:5
40:5
50:5
75:5
100:5
150:5
200:5
250:5
300:5
400:5
500:5
600:5
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
T50
ANSI Metering Class at 60 Hz
B0.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
B0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
B0.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
B0.9
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
B1.8
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
**Thermal Current Rating 1
second RMS Amps
375
1000
1690
1900
2700
2700
4720
4720
8630
8630
14380
17250
17250
37800
37800
37800
37800
The transformers are tested for partial discharge to Canadian
Standards CAN3-C13-M83. This test can also be carried out to
IEC requirements if requested.
Approximate weight
20 lbs.
Regulatory Agencies
BAR SIZES
PRIMARY CURRENT
* For ordering with primary bars, change model number to CTWH3.
** With a burden of B 0.1 or greater connected to the secondary.
DIMENSIONS
A
B
5 TO 250A
0.19
1.50
300 TO 1200A
0.25
2.00
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
107
E-mail: [email protected]
Current Transformers
Continuous Thermal Current Rating
Factor
1.50 at 30° C amb., 1.33 at 55° C amb.
150:5 and 600:5
1.33 at 30° C amb., 1.00 at 55° C amb. 250:5
1.00 at 30° C amb., 0.85 at 55° C amb.
F
Current Transformers
Medium Voltage Current Transformer
F
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
108
E-mail: [email protected]
Medium Voltage Current Transformer
CTWH3-60-T100
Applications
Metering and relaying.
Frequency
50 - 400 Hz.
Maximum System Voltage
5.6kV, BIL 60kV full wave.
OUTLINE DRAWING
15.00
14.00
11.25
Primary Terminals
Plated copper bars. See chart for sizes.
5.63
B
A
H1
H2
7.25
5.75
(2) HOLES
0.56 DIA.
X1
(2) SLOTS
0.56 X 0.75
Current Transformers
Continuous Thermal Current Rating
Factor
1.50 at 30° C amb., 1.33 at 55° C amb.
250:5, 1000:5 & 1200:5
1.10 at 30° C amb., 0.85 at 55° C amb.
Secondary Terminals
Brass screws No. 10-32 with one flatwasher and one lockwasher.
X2
Vacuum cast in polyurethane resin.
ANSI Metering Class at 60 Hz
Part Number*
Current
Ratio
Relay
Class
CTWH3-60-T100-050
5:5
T100
**Thermal Current Rating 1
second RMS Amps
B0.1 B0.2 B0.5 B0.9 B1.8
0.3 0.3 0.3 0.3 0.3
470
CTWH3-60-T100-100
* 10:5
T100
0.3
0.3
0.3
0.3
0.3
900
CTWH3-60-T100-150
* 15:5
T100
0.3
0.3
0.3
0.3
0.3
1600
CTWH3-60-T100-200
* 20:5
T100
0.3
0.3
0.3
0.3
0.3
1900
CTWH3-60-T100-250
* 25:5
T100
0.3
0.3
0.3
0.3
0.3
2600
CTWH3-60-T100-300
* 30:5
T100
0.3
0.3
0.3
0.3
0.3
2900
CTWH3-60-T100-400
* 40:5
T100
0.3
0.3
0.3
0.3
0.3
3800
CTWH3-60-T100-500
* 50:5
T100
0.3
0.3
0.3
0.3
0.3
4700
CTWH3-60-T100-750
* 75:5
T100
0.3
0.3
0.3
0.3
0.3
5900
CTWH3-60-T100-101
* 100:5
T100
0.3
0.3
0.3
0.3
0.3
8600
CTWH3-60-T100-151
* 150:5
T100
0.3
0.3
0.3
0.3
0.3
12900
CTWH3-60-T100-201
* 200:5
T100
0.3
0.3
0.3
0.3
0.3
17200
CTWH3-60-T100-251
* 250:5
T100
0.3
0.3
0.3
0.3
0.3
17200
CTWH3-60-T100-301
* 300:5
T100
0.3
0.3
0.3
0.3
0.3
34500
CTWH3-60-T100-401
* 400:5
T100
0.3
0.3
0.3
0.3
0.3
34500
CTWH3-60-T100-601
* 600:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-801
* 800:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-102
* 1000:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-122
* 1200:5
T100
0.3
0.3
0.3
0.3
0.3
66200
Other ratios, secondary currents and dual ratios are available. Refer to factory.
The transformers are tested for partial discharge to Canadian
Standards CAN3-C13-M83. This test can also be carried out to
IEC requirements if requested.
Approximate weight
41 lbs.
Regulatory Agencies
BAR SIZES
PRIMARY CURRENT
** With a burden of B 0.1 or greater connected to the secondary.
DIMENSIONS
A
B
5 TO 250A
0.25
1.50
300 TO 1200A
0.38
2.00
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
109
E-mail: [email protected]
F
Medium Voltage Current Transformer
CTWH3-60-T100
Applications
Metering and relaying.
Frequency
50 - 400 Hz.
Current Transformers
Maximum System Voltage
5.6kV, BIL 60kV full wave.
(2) HOLES
0.56 DIA.
(2) SLOTS
0.56 X 0.75
A
H1
one lockwasher.
H2
Vacuum cast in polyurethane resin.
7.25
5.75
X1
Primary Terminals
Plated copper bars. See chart for sizes.
Secondary Terminals
Brass screws No. 10-32 with one flatwasher and
5.63
B
Other ratios, secondary currents and dual ratios are available. Refer to factory.
X2
ANSI Metering Class at 60 Hz
Current
Ratio
Relay
Class
B0.1
B0.2
B0.5
B0.9
CTWH3-60-T100-050
5:5
T100
0.3
0.3
0.3
0.3
**Thermal Current Rating 1
second RMS Amps
0.3
470
CTWH3-60-T100-100
* 10:5
T100
0.3
0.3
0.3
0.3
0.3
900
CTWH3-60-T100-150
* 15:5
T100
0.3
0.3
0.3
0.3
0.3
1600
CTWH3-60-T100-200
* 20:5
T100
0.3
0.3
0.3
0.3
0.3
1900
CTWH3-60-T100-250
* 25:5
T100
0.3
0.3
0.3
0.3
0.3
2600
CTWH3-60-T100-300
* 30:5
T100
0.3
0.3
0.3
0.3
0.3
2900
CTWH3-60-T100-400
* 40:5
T100
0.3
0.3
0.3
0.3
0.3
3800
CTWH3-60-T100-500
* 50:5
T100
0.3
0.3
0.3
0.3
0.3
4700
CTWH3-60-T100-750
* 75:5
T100
0.3
0.3
0.3
0.3
0.3
5900
CTWH3-60-T100-101
* 100:5
T100
0.3
0.3
0.3
0.3
0.3
8600
CTWH3-60-T100-151
* 150:5
T100
0.3
0.3
0.3
0.3
0.3
12900
CTWH3-60-T100-201
* 200:5
T100
0.3
0.3
0.3
0.3
0.3
17200
CTWH3-60-T100-251
* 250:5
T100
0.3
0.3
0.3
0.3
0.3
17200
CTWH3-60-T100-301
* 300:5
T100
0.3
0.3
0.3
0.3
0.3
34500
CTWH3-60-T100-401
* 400:5
T100
0.3
0.3
0.3
0.3
0.3
34500
CTWH3-60-T100-601
* 600:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-801
* 800:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-102
* 1000:5
T100
0.3
0.3
0.3
0.3
0.3
66200
CTWH3-60-T100-122
* 1200:5
T100
0.3
0.3
0.3
0.3
0.3
66200
Part Number*
F
Continuous Thermal Current Rating
Factor
1.50 at 30° C amb., 1.33 at 55° C amb.
250:5, 1000:5 & 1200:51.10 at 30° C amb., 0.85 at 55° C amb.
15.00
14.00
11.25
B1.8
The transformers are tested for partial discharge to Canadian
Standards CAN3-C13-M83. This test can also be carried out to
IEC requirements if requested.
Approximate weight
41 lbs.
Regulatory Agencies
BAR SIZES
PRIMARY
CURRENT
5 TO 250A
300 TO 1200A
DIMENSIONS
A
0.25
0.38
B
1.50
2.00
** With a burden of B 0.1 or greater connected to the secondary.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
110
E-mail: [email protected]
Medium Voltage Current Transformer
Current Transformers
F
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
111
E-mail: [email protected]
Medium Voltage Current Transformer
CTWH3-A-60-T90
Applications
High accuracy metering and relaying.
Frequency
50 - 400 Hz.
Current Transformers
Maximum System Voltage
5.6kV, BIL 60kV full wave.
F
Continuous Thermal Current Rating
Factor
1.33 at 30° C amb., 1.0 at 55° C amb.
400:5
1.1 at 30° C amb., 0.85 at 55° C amb.
Primary Terminals
Plated copper bars. See chart for sizes.
Secondary Terminals
Brass screws No. 10-32 with one flatwasher & lockwasher.
Vacuum cast in polyurethane resin.
Other ratios, secondary currents and dual ratios are available. Refer to factory.
The transformers are tested for partial discharge to Canadian
Standards CAN3-C13-M83. This test can also be carried out to
IEC requirements if requested.
ANSI Metering Class at 60 Hz
Current
Ratio
Relay
Class
B0.1
B0.2
B0.5
B0.9
B1.8
*Thermal Current Rating 1
second RMS Amps
CTWH3-A-60-T90-050
5:5
T90
0.1
0.1
0.1
0.1
0.2
470
CTWH3-A-60-T90-100
10:5
T90
0.1
0.1
0.1
0.1
0.2
900
CTWH3-A-60-T90-150
15:5
T90
0.1
0.1
0.1
0.1
0.2
1700
CTWH3-A-60-T90-200
20:5
T90
0.1
0.1
0.1
0.1
0.2
1920
CTWH3-A-60-T90-250
25:5
T90
0.1
0.1
0.1
0.1
0.2
2600
CTWH3-A-60-T90-300
30:5
T90
0.1
0.1
0.1
0.1
0.2
2900
CTWH3-A-60-T90-400
40:5
T90
0.1
0.1
0.1
0.1
0.2
3700
CTWH3-A-60-T90-500
50:5
T90
0.1
0.1
0.1
0.1
0.2
4700
CTWH3-A-60-T90-750
75:5
T90
0.1
0.1
0.1
0.1
0.2
5800
CTWH3-A-60-T90-101
100:5
T90
0.1
0.1
0.1
0.1
0.2
8600
CTWH3-A-60-T90-151
150:5
T90
0.1
0.1
0.1
0.1
0.2
12900
CTWH3-A-60-T90-201
200:5
T90
0.1
0.1
0.1
0.1
0.2
18000
CTWH3-A-60-T90-301
300:5
T90
0.1
0.1
0.1
0.1
0.2
28200
CTWH3-A-60-T90-401
400:5
T90
0.1
0.1
0.1
0.1
0.2
34000
CTWH3-A-60-T90-601
600:5
T90
0.1
0.1
0.1
0.1
0.2
51500
Catalog Number*
Approximate weight
41 lbs.
Regulatory Agencies
BAR SIZES
PRIMARY
CURRENT
5 TO 250A
300 TO 1200A
* With a burden of B 0.1 or greater connected to the secondary.
DIMENSIONS
A
0.25
0.38
B
1.50
2.00
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Medium Voltage Current Transformer
Current Transformers
F
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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Medium Voltage Current Transformer
CTW5-L-110 & CTWH5-L-110
Applications
Metering and relaying.
Frequency
50 - 400 Hz.
Current Transformers
Maximum System Voltage
15.5kV, BIL 110kV full wave.
Continuous Thermal Current Rating
Factor
1.00 at 30° C amb., 0.85 at 55° C amb.
Primary Terminals
1/2-13 bolts with one Belleville washer.
Secondary Terminals
Brass screws No. 10-32 with one flatwasher & lockwasher.
Vacuum cast in polyurethane resin.
Other ratios, secondary currents and dual ratios are available. Refer to factory.
The transformers are tested for partial discharge to Canadian
Standards CAN3-C13-M83. This test can also be carried out to
IEC requirements if requested.
CAUTION: Use only the Belleville washers supplied. Tighten to between 25 and 30 foot-pounds. Do not overtighten.
F
ANSI Metering Class at 60 Hz
Current
Ratio
Relay
Class
B0.1
B0.2
B0.5
B0.9
B1.8
Thermal Current Rating
1 second RMS Amps
CTW5-L-110-T20-050
5:5
T20
0.3
0.3
0.6
1.2
2.4
375
CTW5-L-110-T20-100
10:5
T20
0.3
0.3
0.6
1.2
2.4
590
CTW5-L-110-T20-150
15:5
T20
0.3
0.3
0.6
1.2
2.4
1200
CTW5-L-110-T20-250
25:5
T20
0.3
0.3
0.6
1.2
2.4
1700
CTW5-L-110-T20-300
30:5
T20
0.3
0.3
0.6
1.2
2.4
1700
CTW5-L-110-T20-400
40:5
T20
0.3
0.3
0.6
1.2
2.4
2400
CTW5-L-110-T20-500
50:5
T20
0.3
0.3
0.6
1.2
2.4
4715
CTW5-L-110-T25-750
75:5
T25
0.3
0.3
0.6
1.2
2.4
4715
CTW5-L-110-T25-101
100:5
T25
0.3
0.3
0.6
1.2
2.4
8625
CTW5-L-110-T25-151
150:5
T25
0.3
0.3
0.6
1.2
2.4
11500
CTW5-L-110-T30-201
200:5
T30
0.3
0.3
0.6
1.2
2.4
11500
CTW5-L-110-T20-251
250:5
T20
0.3
0.3
0.6
1.2
2.4
21700
CTW5-L-110-T25-301
300:5
T25
0.3
0.3
0.6
1.2
2.4
21700
CTW5-L-110-T30-401
400:5
T30
0.3
0.3
0.6
1.2
2.4
44700
CTW5-L-110-T35-501
500:5
T35
0.3
0.3
0.3
0.6
1.2
44700
CTW5-L-110-T40-601
600:5
T40
0.3
0.3
0.3
0.6
1.2
44700
Part Number*
Approximate weight
34 lbs.
Regulatory Agencies
BAR SIZES
PRIMARY
CURRENT
5 TO 200A
300 TO 600A
* For ordering with primary bars, change model number to CTWH5-L. A test card is provided with each unit.
DIMENSIONS
A
0.25
0.38
B
1.50
2.00
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Medium Voltage Current Transformer
Current Transformers
F
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Wound Primary Current Transformer
Models 10WP & 189
Current Transformers
The Model 10WP is a low ratio wound primary current transformer,
suitable for primary currents up to 40 amperes. The Model 10WP table lists
the most common current ratings. Primary terminals for the Model 10WP
are: for ratios of 25:5 and below, No. 8-32 brass studs with one
flatwasher, lockwasher and regular nut, for ratios of 30:5 and above,
1/4-20 brass studs with one flatwasher, lockwasher and regular nut.
F
Continuous Thermal Current Rating Factor
1.33 at 30° C amb., 1.0 at 55° C amb.
Frequency• 50 - 400 Hz.
Insulation Level
0.6 kV, BIL 10kV full wave.
Secondary Terminals
Brass studs No. 8-32 UNC with one flatwasher, lockwasher and regular nut.
Approximate weight
Model 10WP: 1.5 lbs.
Model 189: 0.75 lbs.
Regulatory Agencies
Model 10WP
Model 10WP
The Model 189 is a low ratio wound primary current transformer suitable
for primary currents up to 100 amperes. The Model 189 table lists the most
common current ratings. Primary terminals for the Model 189: for ratios of
30:5 and below are, No. 10-32 brass screws with one lockwasher
(Dimension A=3.28), for ratios of 40:5 and above, 3/8-16 brass studs with
one lockwasher and regular nut (Dimension A=4.10).
ANSI Metering Class at 60 Hz
B0.1
B0.2
Part Number
Current Ratio
10WP-0025
2.5:5
0.6
0.6
10WP-005
5:5
0.6
0.6
10WP-0075
7.5:5
0.6
0.6
10WP-010
10:5
0.6
0.6
10WP-015
15:5
0.6
0.6
10WP-020
20:5
0.6
0.6
10WP-025
25:5
0.6
0.6
10WP-030
30:5
0.6
0.6
10WP-040
40:5
0.6
0.6
Model 189
Model 189
ANSI Metering Class at 60 Hz
Part Number
Current Ratio
B0.1
B0.2
189-0025
2.5:5
0.6
0.6
189-005
5:5
0.6
0.6
189-0075
7.5:5
0.6
0.6
189-010
10:5
0.6
0.6
189-015
15:5
0.6
0.6
189-020
20:5
0.6
0.6
189-025
25:5
0.6
0.6
189-030
30:5
0.6
0.6
189-040
40:5
0.6
0.6
189-050
50:5
0.6
0.6
189-060
60:5
0.6
0.6
189-075
75:5
0.6
0.6
189-080
80:5
0.6
0.6
189-101
100:5
0.6
0.6
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Potential Transformers
CR Magnetics carries an extensive line of Potential Transformers that are used to monitor and measure various levels of AC voltages. Typically modeled similarly to common power transformers, potential transformers are specially designed to provide accurate input versus output curves over a wide range of loading. Whereas power transformers are typically designed for 70 to 80 percent regulation, potential transformers are designed for 99% or better
regulation.
The 3PT-1-45 and PT3-2-45 Series of potential transformers are designed to
give accurate measurement of medium voltage systems up to 5KV by stepping
down higher voltages to 120 VAC. Useful for monitoring and measuring larger
power systems and distribution networks containing medium voltage loads.
The PTW3-1-60 Series of potential transformers are designed to give accurate
measurement of medium voltage systems up to 5KV by stepping down higher voltages to 120 VAC. Useful for monitoring and measuring larger power systems and
distribution networks containing medium voltage loads. These devices have
increased capability to drive larger VA loads.
Contact CR Magnetics for other styles of potential transformers including
medium voltage units up to 32K VAC, as well as custom designs tailored to fit the
specific accuracy and energy capability required by any application.
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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Potential Transformers
The 467, 468, and 460 Series of potential transformers are designed to give
accurate measurement of low voltage systems (up to 600 VAC) by stepping down
higher voltages to 110 VAC. Useful for monitoring and measuring incoming building or factory voltages.
G
Voltage Transformer Groups
Potential Transformers
Group 1.
G
Group 2.
Group 4.
Transformers for application with 100% of rated primary voltage connected to the primary terminals either line-to-line or line-to-ground.
These transformers are capable of operating at 125% of rated volts in emergency conditions, but cannot exceed 65% of their thermal
burden rating, with a limit of 75°C. temperature rise. This will result in a reduced life expectancy. Consult the factory for details. continuos operation at 110% of rated voltage is permissible, provided that the thermal burden rated volt - amperage is not exceeded.
Rated Primary Voltage
for Rated System Voltage
Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
Rated Primary Voltage
for Rated System
Voltage Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
840 1455Y*
7:1
10
7200 for 12470Y
1:1
10
840 1455Y*
10:1
10
8400 for 14560Y
1:1
10
840 1455Y*
20:1
10
12000 for 20785Y
1:1
10
840 1455Y*
35:1
10
14400 for 24940Y
1:1
10
840 1455Y*
40:1
10
Transformers are for line-to-line connection, but may be connected line-to-neutral at a voltage of the rated line volts divided by the
square root of three. continuos operation at 110% of rated voltage is permissible, provided that the thermal burden rated voltamperes is not exceeded.
Rated Primary Voltage
for Rated System
Voltage Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
12000 for 12000Y
100:1
95 or 110
Rated Primary Voltage
for Rated System
Voltage Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
2400 for 2400Y
20:1
45
13200 for 13200Y
110:1
95 or 110
3300 for 3300Y*
30:1
60 or 45
14400 for 14400Y
120:1
95 or 110
4200 for 4200Y*
35:1
60 or 45
18000 for 18000Y*
150:1
125*
4800 for 4800Y
40:1
60 or 45
21000 for 21000Y*
175:1
125*
7200 for 7200Y
60:1
75 or 110
24000 for 24000Y
200:1
125 or 150
8400 for 8400Y*
70:1
75 or 110
27600 for 27600Y*
240:1
150 or 200
11000 for 11000Y
100:1
95 or 110
34500 for 34500Y
300:1
150 or 200
Transformers are for line-to-ground connection, indoors only. The neutral terminal is insulated to withstand a test voltage of 10kV.
They may be continuously operated at 110% of rated voltage, provided that the thermal burden rated volt-amperes is not exceeded.
Group 4A transformers are capable of operating at 125% of rated volts in emergency conditions, but cannot exceed 65% of their
thermal burden rating, with a limit of 75°C. temperature rise. This will result in a reduced life expectancy. Consult the factory for
details.
Group 4B for Operation at 58% Rated Voltage
Group 4A for Operation at 100% Rated Voltage
Rated Primary Voltage for
Rated System Voltage
Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
4200 for 4160 GND Y
35:1
65 or 45
4800 for 4800 GND Y
40:1
65 or 45
Rated Primary Voltage
for Rated System Voltage
Line-to-Line
Turns
Ratio
Basic Impulse Insulation
Level (kV Crest)
2400 for 4160 GND Y
20:1
65 or 45*
4200 for 7200 GND Y
35:1
75
7200 for 7200 GND Y
60:1
75
4800 for 8320 GND Y
40:1
75
8400 for 8400 GND Y
70:1
75
7200 for 12470 Y
60:1
110
11000 for 11000 GND Y
100:1
110
8400 for 14560 GND Y
70:1
110
* Not recognized in ANSI/IEEE C57.13
12000 for 12000 GND Y
100:1
110
13200 for 13200 GND Y
110:1
110
14400 for 14400 GND Y
120:1
110
NOTE: Voltage Transformers connected line-to-ground on an ungrounded system cannot be considered to be grounding transformers and must be
operated with the secondaries in closed delta because excessive currents may flow in th e delta. For further details see ANSI/IEEE C57.13
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Application Notes
1. Delta Connected Supply Systems
When applying voltage transformers to ungrounded delta connected supply systems, the transformer must not be connected in wye with the wye-point connected to neutral ground, or ungrounded. The advent of zero sequence currents caused by a ground fault in the system will cause damage, and eventual
destruction of the transformer if the fault is not quickly removed.
2. Ferro resonance
Most voltage transformers are lightly loaded, particularly when associated with watthour metering and relaying schemes. If the voltage transformer has one
primary lead grounded, and during an abnormal condition creating a large overvoltage, the transformer may saturate, and its impedance may cause a resonance with the system capacitance. This resonance, or oscillation, may be sustained and could destroy the voltage transformer. If, however, the secondaries
are connected in delta, with a broken arrow, and a suitable resistor is connected across the broken corner, then ferro resonance can be damped. Our recommendation for the resistive value is shown on the catalog sheet where it applies. The power rating is determined by the user.
3. Secondary Circuit Check
4. Primary Fuse Rating
Values shown are suggested for normal installations, in order to protect the system from a voltage transformer failure. Higher ratings at users option, may
be used to avoid unusual clearing due to conditions resulting from magnetizing in-rush.
ROUTINE FACTORY TESTS
VOLTAGE
CLASS
5kV
8.7kV
15kV
25kV
34.5kV
NO. OF BUSHINGS
CONNECTION
1
2
1
2
1
2
1
2
L - GND
L-L
L - GND
L-L
L - GND
L-L
L - GND
L-L
L - GND
L-L
1
2
N
N
N
N
N
LV 1 MIN
60Hz
H2 1 MIN
60Hz
HV 1 MIN
60Hz
INDUCED
18 SEC. 400Hz
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
10 kV
NA
10 kV
NA
10 kV
NA
10 kV
NA
10 kV
NA
NA
15kV OR 19kV
NA
26kV
NA
34kV OR 36kV
NA
kV
NA
70kV OR 80kV
15kV OR 19kV
DOUBLE VOLTAGE
26kV
DOUBLE VOLTAGE
34 kV
DOUBLE VOLTAGE
kV
DOUBLE VOLTAGE
70 kV
DOUBLE VOLTAGE
Routine Factory Tests include: Polarity, accuracy, and partial discharge per CANADIAN STANDARDS (CAN3-C13-M83) (Partial discharge can also be carried out to IEC
requirements on request)
ANSI BURDEN DATA
CONNECTION
VA
POWER FACTOR
ANGLE
W
12.5
0.10
84.3°
X
25
0.70
45.6°
M
35
0.20
78.5°
Y
75
0.85
31.8°
Z
200
0.85
31.8°
ZZ
400
0.85
31.8°
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Potential Transformers
Immediately prior to connecting the burden and leads to the transformer, a check of the impedance at that circuit should be made. This will avoid a possible
short-circuit connection to the transformer, if a short-circuit is applied to the transformer, it can be withstood for one second. Note: Only secondary circuit
fuses can adequately protect the transformer from such a short circuit.
G
467 Potential Transformers
The 467 Series of potential transformers are designed to give
accurate measurement of low voltage systems (up to 600 VAC) by
stepping down higher voltages to 110 VAC. Useful for monitoring
and measuring incoming building or factory voltages.
Sensing
Potential Transformers
467
G
Applications
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
(4) 0.17 X 0.31 SLOTS
0.22
X2 X1
3.50
3.06
Features
H2 H1
35mm DIN Rail or Panel Mount
Available with 120V and 240V Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
0.65
1.69
3.00
Regulatory Agencies
3.78
PART NUMBERS
Part Number
Voltage Rating
Turns Ratio
467-069
467-120
467-208
467-240
467-277
467-288
467-300
467-346
*467-480
*467-600
69.3:120
120:120
208:120
240:120
277:120
288:120
300:120
346:120
*480:120
*600:120
0.58:1
1:1
1.73:1
2:1
2.31:1
2.4:1
2.5:1
2.88:1
4:1
5:1
Rec. Primary
Fuse Rating
1.5
1.0
0.5
0.5
0.5
0.4
0.4
0.4
0.25
0.25
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468 Potential Transformers
The 468 Series of potential transformers are designed to give
accurate measurement of low voltage systems (up to 600 VAC) by
stepping down higher voltages to 110 VAC. Useful for monitoring
and measuring incoming building or factory voltages.
Sensing
468
Applications
H1
H2
33.27
1.31
LABEL
X1
55.63
2.19
71.37
2.81
X2
35.05
1.38
Features
(4) HOLES
5.59
DIA.
.22
76.20
3.00
35mm DIN Rail or Panel Mount
Available with 120V and 240V Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
92.20
3.63
(2) BOSSES
3/8 DIA.
28.58
1.13
Regulatory Agencies
93.47
3.68
103.12
4.06
9.65
.38
PART NUMBERS
Part Number
Voltage Rating
Turns Ratio
468-069
468-120
468-208
468-240
468-277
468-288
468-300
468-346
*468-480
*468-600
69.3:120
120:120
208:120
240:120
277:120
288:120
300:120
346:120
*480:120
*600:120
0.58:1
1:1
1.73:1
2:1
2.31:1
2.4:1
2.5:1
2.88:1
4:1
5:1
Rec. Primary
Fuse Rating
3.0
2.0
1.0
1.0
1.0
0.75
0.75
0.75
0.50
0.40
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Potential Transformers
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
19.05
.75
G
460 Potential Transformers
The 460 Series of potential transformers are designed to give
accurate measurement of low voltage systems (up to 600 VAC) by
stepping down higher voltages to 110 VAC. Useful for monitoring
and measuring incoming building or factory voltages.
Sensing
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
31.75
1.25
H1
56.64
2.23
12.70
.50
G
Applications
H2
Potential Transformers
460
101.60
4.00
LABEL
120.14
4.73
X2
X1
Features
59.69
2.35
(4) HOLES
10.92
.43
95.25
3.75
114.05
4.49
(2) BOSSES
0.38
107.44
4.23
23.62
.93
35mm DIN Rail or Panel Mount
Available with 120V and 240V Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
84.84
3.34
73.15
2.88
Regulatory Agencies
PART NUMBERS
Part Number
Voltage Rating
Turns Ratio
460-069
460-120
460-208
460-240
460-277
460-288
460-300
460-346
*460-480
*460-600
69.3:120
120:120
208:120
240:120
277:120
288:120
300:120
346:120
*480:120
*600:120
0.58:1
1:1
1.73:1
2:1
2.31:1
2.4:1
2.5:1
2.88:1
4:1
5:1
Rec. Primary
Fuse Rating
5.0
4.0
2.0
2.0
2.0
1.5
1.5
1.5
1.0
0.75
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PT3-1-45 and PT3-2-45
The 3PT-1-45 and PT3-2-45 Series of potential transformers
are designed to give accurate measurement of medium voltage
systems up to 5KV by stepping down higher voltages to 120 VAC.
Useful for monitoring and measuring larger power systems and
distribution networks containing medium voltage loads.
Sensing
Applications
H2
X1
X2
UNFUSED
TWO BUSHING
H2
X1
X2
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
ONE FUSE
ONE BUSHING
H1
H2
X1
X2
Potential Transformers
H1
H1
Features
35mm DIN Rail or Panel Mount
Available with 120V and 240V Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
Regulatory Agencies
TWO FUSE
TWO BUSHING
PART NUMBERS
TWO BUSHING (a)
GROUP
PRIMARY
VOLTAGE
RATIO
SECONDARY
VOLTAGE
UNFUSED
FUSES
FUSE CLIPS ONLY (d)
SWITCHGEAR STYLE
1
840
7:1
120
PT3-2-45-841
PT3-2-45-841FF
PT3-2-45-841CC
PT3-2-45-841SS
1
1200
10:1
120
PT3-2-45-122
PT3-2-45-122FF
PT3-2-45-122CC
PT3-2-45-122SS
1
2400
20:1
120
PT3-2-45-242
PT3-2-45-242FF
PT3-2-45-242SS
2
3300
30:1
110-50Hz
PT3-2-45-332
PT3-2-45-332FF
PT3-2-45-242CC
PT3-2-45-332CC
2
4200
35:1
120
PT3-2-45-422
PT3-2-45-422FF
PT3-2-45-422CC
PT3-2-45-422SS
2
4800
40:1
120
PT3-2-45-482
PT3-2-45-482FF
PT3-2-45-482CC
PT3-2-45-482SS
GROUP
PRIMARY
VOLTAGE
RATIO
SECONDARY
VOLTAGE
Rm
(c)
FUSES
FUSE CLIPS ONLY (d)
SWITCHGEAR STYLE
4A
2400
20:1
120
190
PT3-2-45-242F
PT3-2-45-242C
PT3-2-45-242S
4B
4200
35:1
120
190
PT3-2-45-422F
PT3-2-45-422C
PT3-2-45-422S
4B
4800
40:1
120
190
PT3-2-45-482F
PT3-2-45-482C
PT3-2-45-482S
PT3-2-45-332SS
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123
E-mail: [email protected]
G
PT3-1-45 and PT3-2-45
(a) Two fuse transformers should not be used for Y connections. It is preferred practice to connect one lead from each voltage transformer directly to the neutral terminal,
using a fuse int he line side of the primary only. By using this connection a transformer can never be made "live"from the side by reason of a blown fuse in the neutral
side. For continuous operation the transformer primary voltage should not exceed 110% of rated value.
(b) Voltage transformers connected line-to-ground cannot be considered to be grounding transformers and must not be operated with the secondaries in closed delta
because excessive currents may flow in the delta.
(c) Values in table are in iohms.
(d) Fuse clips noted as "CC or "C" accept fuses with 1.0" Dia. caps and 5" centers. Fuses clips with a suffix "CCS" or "CS" accept fuses with 0.81 in. caps and 5 in.
clip centers
Note: It is recommended that system line-to-line voltage not exceed the transformer maximum system voltage level.
Potential Transformers
FUSE FOR MODEL
PT3
TRANSFORMER
RATING
VOLTS
INTERRUPTING
AMPERES (SYM)
SUGGESTED
RATING
CONTINUOUS
AMPERES
CAP DIA .
INCHES
(a)
LENGTH
INCHES
CLIP CENTERS
INCHES
2400:120V
5.5kV
45,000
2.0E
1.0
5.63
5.00
3300:110V
5.5kV
45,000
2.0E
1.0
5.63
5.00
4200:120V
5.5kV
45,000
1.0E
1.0
5.63
5.00
4800:120V
5.5kV
45,000
1.0E
1.0
5.63
5.00
• Primary terminals that are unfused are 1/4-20 brass screws with one flatwasher
and lockwasher.
• Primary terminals that are fused are 1/4-20 brass screws with one flatwasher
and lockwasher and two nuts.
• Secondary terminals are No. 10-32 brass screws with one flatwasher and
lockwasher.
CIRCLE DIAGRAM
RECOMMENDED MINIMUM SPACINGS
A = Unit t o Unit = 0.75” m inim um .
B = HV t o Ground in air = 3.00” m inim um .
Recommended spacing are for guidance only
Us er needs t o s et appropriat e values t o as s u re
perform anc e for high pot ent ial t es t , im pu ls e t es t ,
high hu m idit y , part ial dis c harge, high alt it u de, and
ot her c ons iderat ions like c onfigu rat ion.
The circle diagram can be used to predict the performance of a transformer
for various loads and power factors. A convenient scale of volt-ampere is
shown on the unity power line (u.p.f.) and commences at the zero or
no-load locus. To use the diagram, measure the known V.A. and scribe an arc
about the "Zero" locus of a length that contains the angle of the burden
power factor. The point at which the arc terminates is the error locus in phase
angle minutes and ratio correction factor.
G
UNFUSED
TWO FUSE
ONE FUSE
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124
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PTW3-1-60
The PTW3-1-60 Series of potential transformers are designed
to give accurate measurement of medium voltage systems up to
5KV by stepping down higher voltages to 120 VAC. Useful for
monitoring and measuring larger power systems and distribution
networks containing medium voltage loads. These devices have
increased capability to drive larger VA loads.
Sensing
Applications
H2
X1
X2
UNFUSED
TWO BUSHING
H2
X1
X2
Sub-Metering
Motor Loads
Uninterruptible Power Systems
Remote Monitoring
Load Shedding
Energy Management
ONE FUSE
ONE BUSHING
H1
H2
X1
X2
Potential Transformers
H1
H1
Features
35mm DIN Rail or Panel Mount
Available with 120V and 240V Input
24 VDC Powered
Use with CR Magnetics Transducers
Highest precision available
Connection diagram printed on case
Regulatory Agencies
TWO FUSE
TWO BUSHING
PART NUMBERS
TWO BUSHING (a)
GROUP
PRIMARY
VOLTAGE
RATIO
SECONDARY
VOLTAGE
UNFUSED
FUSES
FUSE CLIPS ONLY (d)
SWITCHGEAR STYLE
1
*2400
20:1
120
PTW3-2-60-242
PTW3-2-60-242FF
PTW3-2-60-242CCSorCCL
PTW3-2-60-242SS
2
3300
30:1
110-50Hz
PTW3-2-60-332
PTW3-2-60-332FF
PTW3-2-60-332CCSorCCL
PTW3-2-60-332SS
2
4200
35:1
120
PTW3-2-60-422
PTW3-2-60-422FF
PTW3-2-60-422CCSorCCL
PTW3-2-60-422SS
2
*4800
40:1
120
PTW3-2-60-482
PTW3-2-60-482FF
PTW3-2-60-482CCSorCCL
PTW3-2-60-482SS
GROUP
PRIMARY
VOLTAGE
RATIO
SECONDARY
VOLTAGE
Rm
(c)
FUSES
FUSE CLIPS ONLY (d)
SWITCHGEAR STYLE
4A
*2400
20:1
120
230
PTW3-2-60-242F
PTW3-2-60-242CSorCL
PTW3-2-60-242S
4B
*4200
35:1
120
230
PTW3-2-60-422F
PTW3-2-60-422CSorCL
PTW3-2-60-422S
4B
*4800
40:1
120
230
PTW3-2-60-482F
PTW3-2-60-482CSorCL
PTW3-2-60-482S
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125
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G
PTW3-1-60
(a) Two fuse transformers should not be used for Y connections. It is preferred practice to connect one lead from each voltage transformer directly to the neutral terminal, using a
fuse in the line side of the primary only. By using this connection a transformer can never be made “live” from the line side by reason of a blown fuse in the neutral side. For continuous
operation the transformer primary voltage should not exceed 110% of rated value.
(b) Voltage transformers connected line-to-ground cannot be considered to be grounding transformers and must not be operated with the secondaries in closed delta because
excessive currents may flow in the delta.
(c) Values in table are in ohms.
(d) Fuse clips noted as “CCS” or “CS” accept fuses with 1.0” Dia. caps and 5” clip centers. Fuses clips with a suffix“CCL” or “CL” accept fuses with 1.63 dia. caps and 5.88” clip centers.
Note: It is recommended that system line-to-line voltage not exceed the transformer maximum system voltage level.
Potential Transformers
FUSE FOR MODEL
PT W3 TRANSFORMER
•
•
•
•
•
•
RATING
VOLTS
INTERRUPTING
AMPERES (SYM)
SUGGESTED
RATING
CONTINUOUS
AMPERES
CAP DIA.
INCHES
(d)
LENGTH
INCHES
CLIP CENTERS
INCHES
2400:120V
5.5kV
45,000
2.0E
1.0
5.63
5.00
3300:110V
5.5kV
45,000
2.0E
1.0
5.63
5.00
4200:120V
5.5kV
45,000
1.0E
1.0
5.63
5.00
4800:120V
5.5kV
45,000
1.0E
1.0
5.63
5.00
Primary terminals that are unfused are 1/4-20 brass screws with one flatwasher
and lock washer.
Primary terminals that are fused are 1/4-20 brass screws with one flatwasher
and lock washer and two nuts.
Secondary terminals are No. 10-32 brass screws with one flatwasher and
lock washer.
The core and coil assembly is encased in a plastic enclosure and vacuum
encapsulated in polyurethane resin.
Thermal burden rating is for 120 volt secondaries.
Switch gear style is similar to fused style. No fuse or fuse clip is provide, but
inserts for fuse clips are supplied.
CIRCLE DIAGRAM
RECOMMENDED MINIMUM SPACINGS
A = Unit to Unit or to Ground = 1.00” minimum.
B = HV to Ground in air = 3.00” minimum.
Recommended spacing are for guidance only. User needs to set
appropriate values to assure performance for high potential test,
impulse test, high humidity, partial discharge, high altitude, and other
considerations like configuration.
The circle diagram can be used to predict the performance of a transformer
for various loads and power factors. A convenient scale of volt-ampere is
shown on the unity power factor line (u.p.f ) and commences at the zero or
no-load locus. To use the diagram, measure the known V.A . and scribe an arc
about the “Zer o ” locus of a length that contains the angle of the burden
power factor. The point at which the arc terminates is the error locus in phase
angle minutes and ratio correction factor.
G
UNFUSED
ONE FUSE
TWO FUSE
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com
126
E-mail: [email protected]
Contents Listing
Applications, Guides, and References
As part of our commitment to customer service, the following pages contain some of the most common
application notes, as well as some handy reference material that makes implementing your own instrumentation
system easy and fast. All our information is also available for download at www.crmagnetics.com
The Application Guides are basic applications and design notes
for using electrical properties instrumentation products. Included are
typical applications of parts, adjusting and understanding transfer functions of sensors and transducers, and design aids and applications to
implement full systems.
The Technical Reference documents contain handy lookup information on 3 phase and single phase power systems, Ohm’s law, and
mathematical models of sensors.
EI
A
PR
120 (240) [480]
C
B
120 (240) [480]
P
I
120 (240) [480]
E
R
P
I
P
R
E
R
E
I
IR
P
I2
P
E
E2
P
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127
E-mail: [email protected]
Applications
I2R
E2
R
H
Applications
Applications
PAGE 127
PAGE 128
PAGE 129
PAGE 130
PAGE 131
PAGE 132
PAGE 133
PAGE 134
PAGE 135
PAGE 136
PAGE 137
PAGE 138
PAGE 139
PAGE 140
PAGE 141
PAGE 142
PAGE 146
PAGE 148
PAGE 148
PAGE 149
PAGE 150
PAGE 151
PAGE 152
Developing voltages from 4 to 20 mA Current Loops
Using the CR4210/11 Self Powered Current Transducer
Measuring 3 Phase Currents with the CR4210/11 Transducer
Using the CR4220/60 Loop Powered Current Transducer
3 Phase 3 Wire Active Power Measurement using the CR6230/40 Power Transducer
3 Phase 4 Wire Active Power Measurement using the CR6250/60 Power Transducer
Motor Current Monitoring using the CR4395 Current Sensing Relay
Detecting Open Heaters and Lamps using the CR4395 Current Sensing Relay
3 Phase Imbalance and Ground Fault Detection using the CR7310 Ground Fault Sensor
The CR45 as an Open Heater/Open Winding Indicator
Field Adjustment of Current Transformer Ratio
Selecting Revenue ANSI Class Metering Current Transformers
Using Auxiliary Current Transformers with Other CR Devices
Precision Rectifier Circuit for Current Transformer Signal Conditioning
Low Cost Fan Control with Hysteresis
Index of Common Terms used in the Electrical Measurement Industry
Users Guide Concerning Errors in CT Ratio
Table Listing Electrical Operating and Full Load Current of various HP Motors
Commonly Used Voltages and Power Supplies for the United States
Illustration of 3 Phase Circuits with Loads and Currents Calculated
Flow / Wave Soldering Specification
OHM’S LAW for DC and AC Circuits
Listing of Books, Standards, and Articles Relating to Electrical Properties Measurement
All CR Magnetics applications and reference material can be found online
www.crmagnetics.com
www
Just type in crmagnetics.com, and go to the Technical Guides Button!!
H
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128
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Developing Voltage From 4-20mA Current Loops
Many of the Analog Transducers from CR Magnetics provide a 4 to 20mA current loop to communicate sensed values.
These loops can be converted to a voltage for input to a wide variety of instrumentation devices including panel
meters, data acquisition systems, and programmable controllers. By adding a precision resistor in series with the
loop, a voltage is developed, which can then be inputted to the instrumentation. In the diagram below, a current
transducer is used to show this concept.
1234
I
PRIMARY
I
LOOP
+
RC
-
RESISTOR CONVERTER
24 Vdc
(CR4420 ONLY)
I LOOP
I PRIMARY
FS
X 16
+ 4
FS = FULL-SCALE CURRENT IN AMPS RMS
I PRIMARY = MONITORED CURRENT IN AMPS RMS
I LOOP= LOOP CURRENT IN mA dc
The tolerance of the resistor is critical. Tolerances of the system are additive – using a 0.5% percent transducer in
conjunction with a 1% resistor results in a 1.5% tolerance system.
The temperature coefficient of the resistor is a key factor. All electronic devices exhibit some variance with
temperature. If the resistor has a large variance with temperature, the accuracy of the system will also vary with
temperature. Self-heating of the resistor must also be considered. A typical design of 5VDC at full scale (20mA)
requires a nominal resistance of 250 Ohms (5/.020). The power generated in this resistor at full scale is Volts
times Amps or 5 X .020 = .100 Watts. Choosing a 1/8 Watt (.125) resistor will provide reasonable safety against
destruction, but will cause a significant temperature rise in the resistor. This rise in temperature can result in
significant changes in the value of the resistance. For instrumentation, a resistor with a power rating of at least
10 times the expected full scale power is recommended.
The resistor should be mounted as close as possible to the instrumentation. Once the signal is converted from
current to voltage, voltage drops from wire resistance introduces errors in the signal.
Whenever possible, use similar materials for all wire connections. Galvanic reactions from dissimilar metals can
introduce errors in the readings. An extremely low galvanic reaction such as 5mV introduces a .1% error at 5VDC
full scale. Smaller reading levels results in this error being more significant.
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Applications
H
Using the Self Powered CR4210/11 Series Current Transducer
The 4210 and 4211 series transducers are self-powered variable voltage devices that automatically adjust their DC
voltage output to maintain a DC voltage that is proportional to the Average RMS Value of the AC current flowing
through the window of the transmitter. The 4210 outputs 5VDC and the 4211 outputs 10VDC for full scale AC input
current.
0-5 Vdc for
CR4210
0-10 Vdc for
TOTAL LOAD RESISTANCE
CR4211
I
+
PRIMARY
INTERCONNECT
Applications
RESISTANCE
H
-
INSTRUMENTATION
RESISTANCE
Verify that the correct polarity is observed as shown. The 4210/11 series are polarity protected, so damage
should not occur if connected in reverse polarity.
Insure that the total loop resistance (instrument plus wire) exceeds the minimum load resistance for the range
chosen. Most commonly, an instrument with a burden of 1 Meg ohms is chosen. If the total loop resistance
is less than required, the transducer will not function according to published specifications.
Twisted pair wire should be adequate for most applications but shielded/twisted pair wire with the shield
grounded at the instrumentation end may be required for the most severe environments. Refer to the
instrumentation installation manual for more details regarding interconnect requirements.
The output is calibrated to be proportional to the Average RMS of the current primary at 60 Hz. Signals from
devices such as SCR and variable speed drives will not produce an accurate indication of RMS current levels.
The first step in troubleshooting would be to check the voltage across all of the components in the loop.
Transducers may be mounted in close proximity to each other without concern for magnetic interaction.
An external current transformer may be attached to the transducer for applications that require monitoring
current levels above 200 AAC.
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Measuring 3-Phase Currents with the CR4210 Transducer
The unique design of the CR4210 Transducer allows the system designer to not only measure individual phase currents, but also combine signals to realize arithmetic functions with a minimum of components and programming.
Because of the self-powered floating output feature, voltages can be added and subtracted by simple wiring, and
accurate data displayed via programmable scale displays.
CR4210/11
Accurate average three phase current measurement
Phase imbalance indication Monitor motor load status accurately and simply
Monitor heater status and balance
Phase Voltage monitor
The transducer function of giving DC output voltages for AC input currents loses all phasing information.
Absolute values of current are available only.
Loading limits of the transducer remain as specified. Multiple transducers wired as shown must be capable of
handling the instrument impedance on an individual basis.
Transducers may be mounted in close proximity to each other without concern for magnetic interaction.
An external current transformer may be attached to the transducer for applications that require monitoring
current levels above 200 AAC.
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Applications
H
Using the CR4220/60 Series Current Transmitter
The 4220/60 series are variable resistance devices that automatically adjust their DC series resistance to maintain a
DC current that is proportional to the Average RMS Value of the AC current flowing through the window of the transmitter. Since these are variable resistance devices, the 4-20mA loop must derive power from an external DC power
supply.
0 to 600 ohms
I
PRIMARY
+
I LOOP
INTERCONNECT
INSTRUMENTATION
RESISTANCE
Applications
I LOOP
H
=
I PRIMARY
FS
X 16
-
RESISTANCE
24 Vdc
+ 4
Verify that the correct polarity is observed as shown. The 4220/60 series are polarity protected, so damage
should not occur if connected in reverse polarity.
Insure that the total loop resistance (instrument plus wire) does not exceed 600 Ohms. Most commonly, an
instrument with a burden of 250 Ohms is chosen. If the total loop resistance is greater that 600 Ohms the
transducer will not function according to published specifications.
Choosing connection wire with 22 gauge conductors or larger will minimize connection resistance on most
applications. Twisted pair wire should be adequate for most applications but shielded/twisted pair wire with the
shield grounded at the instrumentation end may be required for the most severe environments. Refer to the
instrumentation installation manual for more details regarding interconnect requirements.
Verify that the output of the DC supply is at least 24 VDC, with a current rating of 20 ma or greater per
transmitter connected.
The output is calibrated to be proportional to the Average RMS of the current primary at 60 Hz. Signals from
devices such as SCR and variable speed drives will not produce an accurate indication of RMS current levels.
Multiple loop powered transducers may be attached to the same power supply. Attach one side of the power
supply common to all the transducers.
The first step in troubleshooting would be to check the voltage across all of the components in the loop. At no
load the voltage across the instrumentation will be its burden resistance times .004.
Transducers may be mounted in close proximity to each other without concern for magnetic interaction.
An external current transformer may be attached to the transducer for applications that require monitoring
current levels above 400 AAC.
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Active Power Measurement with the CR6230/40 Power Transducer
The CR6230 and CR6240 series of Power Transducers gives the designer a simple and effective way to measure
and record the instantaneous power usage for 3 – phase 3 – wire loads. These devices are also known as 2
element power transducers. Only two current inputs are needed because 3 – wire power systems do not have a
neutral return path, and one of the lines can always be modeled as the sum of the other two. Hence, these Delta
connections can be measured with 2 current sense points.
Calculation of full scale output: Using a CR6230-500-5 for example, the unit is calibrated to output
the fullscale reading when a balanced purely resistive load is being powered by 500 Vrms line to line, and
the amount of current draw on each leg is 5 Arms. Power in any one leg will be the volts across the leg
times the current through the leg times the power factor. For calibration, the value of the power factor is
unity (1) for a purely resistive load. For the above diagram, the voltage across the element is V L-L, or
500Vrms. The current is Ip, which for balanced loads is I line divided by the square root of 3 (1.732). Thus,
the power in one of the legs for a full scale reading using a 500-5 unit would be 500 X 5/1.732 = 1,443
Watts. There are then 3 legs on a 3-phase line, so the total power, full scale would be 3 X 1,445 = 4,330
Watts. The 500-5 transducer will output fullscale (5VDC or 20mA) when the power being used is 4,330
Watts. Using this same methodology, the following simplified formula will give the full scale reading from
any Delta transducer: Part number CR6230 – AAA - BB, Full scale in Watts = AAA X BB X 3 X 1.732.
External current transformers and voltage transformers can be used to extend the reading range
of any transducer. Voltage and current transformers are sized according to turns ratio. A turns ratio on a
current transformer of 100:5 represents a turns ratio of 100/5 or 20. Thus for every 1 amp from the
current transformer, this represents 20 Amps in the measured line. Since power = V X I X PF (power factor),
the amount of power measured when using external current and voltage transformers will be V X I X PF X
current ratio X voltage ratio. Using our same example as before, with a CR6230-500-5, if an external
current transformer with a ratio of 20 is used, as well as an external voltage transformer with a ratio of 2,
then the new full scale output of the transducer will equal 4,330 X 20 X 2 = 173,200 Watts!!! A simplified
formula for this situation is: Full Scale Watts = AAA X BB X 3 X 1.732 X CT ratio X VT ratio.
Please refer to “Selecting ANSI Class Metering Current Transformers” and “Using External Current Transformers
with Other CR Devices” for more information on transformer ratios and applying external transformers to
transducers and other devices.
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Applications
H
Active Power Measurement with the CR6250/60 Power Transducer
The CR6250 and CR6260 series of Power Transducers gives the designer a simple and effective way to measure and
record the instantaneous power usage for 3 – phase 4 – wire loads. These devices are also known as 3 element
power transducers. All 3 current inputs are needed because 4 – wire power systems have a neutral return path,
and differences in phase currents results in neutral currents, thus requiring all phase information. Hence, these
Wye connections must be measured with 3 current sense points.
current sense points.
A
I line
R
B
R
VL-N
N
R
VL-N
Applications
C
H
Calculation of full scale output: Using a CR6250-500-5 for example, the unit is calibrated to output the
fullscale reading when a balanced purely resistive load is being powered by 500 Vrms line to neutral, and the
amount of current draw on each leg is 5 Arms. Power in any one leg will be the volts across the leg times the
current through the leg times the power factor. For calibration, the value of the power factor is unity (1) for a
purely resistive load. For the above diagram, the voltage across the element is V L-N, or 500Vrms. The current
is Ip, which for balanced Wye loads flows through each element. Thus, the power in one of the legs for a full
scale reading using a 500-5 unit would be 500 X 5 = 2,500 Watts. There are then 3 legs on a 3-phase line, so
the total power, full scale would be 3 X 2,500 = 7,500 Watts. The 500-5 transducer will output fullscale (5VDC
or 20mA) when the power being used is 7,500 Watts. Using this same methodology, the following simplified
formula will give the full scale reading from any Wye transducer: Part number CR6250 – AAA - BB, Full
scale in Watts = AAA X BB X 3.
External current transformers and voltage transformers can be used to extend the reading range of
any transducer. Voltage and current transformers are sized according to turns ratio. A turns ratio on a current
transformer of 100:5 represents a turns ratio of 100/5 or 20. Thus for every 1 amp from the current
transformer, this represents 20 Amps in the measured line. Since power = V X I X PF (power factor), the
amount of power measured when using external current and voltage transformers will be V X I X PF X current
ratio X voltage ratio. Using our same example as before, with a CR6250-500-5, if an external current
transformer with a ratio of 20 is used, as well as an external voltage transformer with a ratio of 2, then the
new full scale output of the transducer will equal 7,500 X 20 X 2 = 300,000 Watts!!! A simplified formula for
this situation is: Full Scale Watts = AAA X BB X 3 X CT ratio X VT ratio. Please refer to “Selecting
ANSI Class Metering Current Transformers” and “Using External Current Transformers with Other CR Devices”
for more information on transformer ratios and applying external transformers to transducers and other
devices.
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Motor Current Monitor Using the CR4395 Relay
The CR4395 current sensing relay can be used as an effective way to monitor the operational load of a motor.
Overloading and underloading can be sensed from primary current levels to trigger alarms, lockouts, and
indicators. The EH version (active above setpoint current) can be used for overload, and the EL version
(active below setpoint current) for underload.
CR
CR
20
25
30
15
10
5 3
M
The CR4395 can be ordered with three time delay settings, A for .5 to 6 seconds, B for 2 to 20 seconds, and X
for no delay. The EH option can utilize the time delay for preventing undesired activation during high motor
startup currents.
The time delay function can also be used for pulsed motor applications in the EL circuit. Here, activation of the
relay will occur only if the current to the motor remains below the setpoint for longer than the delay period.
Both the EH and the EL versions are available with the latching option. When tripped, the relay remains in the
activated state until power is reset.
The CR4395 comes standard with a mechanical relay that provides a Form C single pole contact. Other outputs
such as transistor and triac switches are available as options. Typically, the mechanical relay is used to provide
higher current switching for other motors and loads, and the solid state options are used to interface with digital
and PLC circuitry, which eliminates switch bouncing.
A combination of time delay setting and setpoint level can implement special indicator functions. Lower time
delays, with properly chosen current trip levels can give an indication of motor bearing stress with the EH
version. The EL version with longer delays and properly designed trip levels can be used for yield monitors in
continuous process industries.
The CR4395 is an effective tool in protecting and monitoring motors, however, electrical fuses or other
devices may be required for complete circuit protection.
Applications
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Detecting Open Heaters and Lamps with the CR4395 Current Sense Relay
The CR4395 current sensing relay can be used as an effective way to monitor the operational status of heaters
and lamps. Most loads of this type have an open circuit failure mode. The EL version (active below setpoint)current can be utilized. Upon failure of the load, current ceases, and the relay activates.
"A"
"B"
20
25
Applications
10
H
30
15
5
3
In cases where the current is cycled on and off, as in most heater applications, the connection scheme “B” can
provide effective sensing. The CR4395 is powered by the controller output. Used in this fashion, the relay will
only monitor the load when the load is active.
The unique design of the CR4395 guarantees correct sensing of the load as the power is cycled on and off.
Using tested power supply designs, the sensing circuitry and trip level are parametrically matched, eliminating
false trips and timing problems.
For continuously powered loads, circuit “A” is used. The output relay can then be used to drive alarms and
indicators.
The CR4395 comes standard with a mechanical relay that provides a Form C single pole contact. Other outputs
such as transistor and triac switches are available as options. Typically, the mechanical relay is used to provide
higher current switching for other motors and loads, and thesolid state options are used to interface with digital
and PLC circuitry, which eliminates switch bouncing.
A latching version is available that can be used to force reset when a trip occurs. The relay, once tripped, stays
tripped regardless of current level sensed, until power is reset. This version is only applicable to circuit “A”,
since power is constantly set and reset in circuit “B”.
Time delay units can be selected for circuit “A” on ‘ some controlled heater applications. The time delay must
be set longer than the longest “off” time for proper operation.
Circuit “B” can only be used on controllers that are “zero-cross” or utilize full cycles of the ac power supply.
Phase-fired SCR controls or devices that use portions of the power waveform to regulate power will not function
properly.
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3 Phase Imbalance/Ground Fault Detection Using the CR7310 Ground Fault Sensor
One of the most important applications of the CR7310 relay is to monitor 3 phase imbalances and ground faults.
This application can help protect sensitive equipment and minimize losses from equipment failure. All three phases, plus neutrals as shown, are routed through the sensor window.
3 PHASE
CR7310
A
2
2
1
B
1
3
3 PHASE
LOAD
53
C
3 Phase Y phase currents by definition must cancel when the loads are equal. Passing all three phases of the Y
through the sensor will normally result in zero amperage reading. When an imbalance occurs, the phases do
not cancel, and the relay trips.
This type of imbalance scheme works best due to the fact that all fault conditions, leg to leg, leg to neutral, and
leg to ground can be sensed. Sensing only neutral currents will not necessarily indicate a ground fault
condition.
Ground fault indication can only be sensed in a Delta configuration. Leg to leg imbalances are not detectable
due to the absence of a neutral return path.
The CR7310 comes standard with a mechanical relay that provides a Form C single pole contact. Other outputs
such as transistor and triac switches are available as options. Typically, the mechanical relay is used to provide
higher current switching for other motors and loads, and the solid state options are used to interface with digital
and PLC circuitry, which eliminates switch bouncing.
A latching version is available that can be used to force reset when a trip occurs. The relay, once tripped, stays
tripped regardless of current level sensed, until power is reset.
The CR7310 Ground Fault Sensor is in no way to be considered adequate protection from injury to operators,
animals, or other electrically sensitive assets. These devices provide signals and indications that can be applied
with other equipment for complete systems. Other fuses and/or electrical devices are required for complete
circuit protection.
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Applications
H
The CR45 as an Open Heater/Open Winding Indicator
The most popular application of the CR45 indicator is to provide a method of non-intrusive troubleshooting and status indication of heater elements and motor windings. The typical failure mode of heaters and some motors are
open circuit. When current flows, the LED is on. When the circuit is open, the LED is not on. This gives an easy
method of monitoring the status of the equipment.
Applications
WIRE
PASSES
M
TURN-ON
POINT
AX. WIRE
DIAMETER
RED
GREEN
1
2.00
2.50
0.29
2
1.00
1.25
0.14
3
0.66
0.83
0.13
4
0.50
0.62
0.12
N
2 / N
2.5 / N
The on level of the CR45 can be adjusted by increasing the number of primary turns. The table above gives the
size wire and the number of turns that can be used. Dividing the normal one turn on level of 2 amps by the
number of primary turns will give the adjusted turn on level.
The CR45 is designed to be wire mounted using the wire tie provided. For panel mounting, the MB45 is
available, along with a rubber grommet for sealing.
The maximum current that the unit can handle is 100 Amps for a single turn. Using multiple primary turns
decreases the maximum allowed by the same rules for adjusting the turn on point.
For applications where the primary current cannot be routed to an easily viewed spot to use the CR45, please
refer to our Remote Indicator line. These separate the LED and the ring sensor to give greater flexibility.
Care must be taken when using the CR45 within heater environments. The maximum operating temperature of
the unit is 70 degrees C.
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Field Adjustment of Current Transformer Ratio
The ratio of current transformers can be field adjusted to fulfill the needs of the application. Passing more secondary turns or more primary turns through the window will increase or decrease the turns ratio.
X2 Black
X1 White
H1
ACTUAL
TURNS
RATIO
=
NAMEPLATE RATIO
-
SECONDARY TURNS ADDED
PRIMARY TURNS
Increasing the number of primary turns can only decrease the turns ratio. A current transformer with a 50 to 5
turns ratio can be changed to a 25 to 5 turns ratio by passing the primary twice through the window.
The turns ratio can be either increased or decreased by wrapping wire from the secondary through the window
of the current transformer.
When using the secondary of a current transformer to change the turns ratio, the right hand rule of magnetic
fields comes into play. Wrapping the white lead or the X1 lead from the H1 side of the transformer through the
window to the H2 side will decrease the turns ratio. Wrapping this wire from the H2 side to the H1 side will
increase the turns ratio.
Using the black or X2 lead as the adjustment method will do the opposite of the X1(white) lead. Wrapping
from the H1 to the H2 side will increase the turns ratio, and wrapping from the H2 to the H1 side will decrease
the turns ratio.
Increasing the turns ratio with the secondary wire, turns on the secondary are essentially increased. A 50 to 5
current transformer will have a 55 to 5 ratio when adding a single secondary turn.
Decreasing the turns ratio with the secondary wire, turns on the secondary are essentially decreased. A 50 to 5
current transformer will have a 45 to 5 ratio when adding a single secondary turn.
Decreasing the turns ratio with the primary, accuracy and VA burden ratings are the same as the original
configuration.
Increasing the turns ratio with the secondary will improve the accuracy and burden rating.
Decreasing the turns ratio with the secondary will worsen the accuracy and burden rating.
Applications
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Selecting ANSI Class Metering Current Transformers
RATIO
CURRENT
One of the most common uses of current transformers are in metering and power usage, where a 5 Amp secondary current transformer is applied to a panel meter or a power meter for displaying amperage or recording power.
When extremely accurate measurement is required, or when revenue is generated from a power meter, ANSI class
current transformers are generally selected. The following table describes the characteristics of the ANSI class
transformer.
50:5
ANSI METERING CLASS @ 60 Hz
B0.1
B0.2
B0.5
B0.9
B1.8
0.3
0.6
0.9
1.2
2.4
TURNS RATIO
Applications
H
BURDEN IN
OHMS
PERCENT
ACCURACY
The primary selection criteria is the burden placed on the secondary of the transformer. This is the impedance
of the instrument that is connected to the transformer. This value is generally given in ohms or VA (volt-amps).
For ANSI class transformers, the headings at the top of the table B0.1 through B1.8 organize the accuracy of
the transformer according to the burden placed on the secondary. For example B0.1 means a burden of 0.l
ohms.
The accuracies listed under the burden values are given in percent. These values are for a full scale reading.
Percent accuracy means that the reading received from the transformer at the burden listed will be within the
percentage given of ideal. Hence, a 50 to 5 turns ratio transformer with 50 Amps through the window will
output 5 amps +/- 0.3% in the secondary into a 0.1 ohm burden. The current in the secondary will be some
where between 4.985 and 5.015 amps.
When the instrument connected gives the burden to the transformer in VA (volt-amps) the table can be used to
determine accuracy. Since the transformer has a 5 amp secondary, using Ohm’s Law, the impedance can be
determined. A burden of 5 VA must be equal to the current squared times the impedance in ohms. Thus, 5VA /
(5X5) = 0.2 Ohms. Thus, the accuracy of this transformer-meter system would be 0.6%.
If the impedance calculated or chosen falls between headings, use interpolation to determine accuracy.
In general, the lower the burden, the higher the accuracy.
It is critical to understand that the accuracy ratings are for a full scale reading. This accuracy will only be
maintained from 20% full scale and up. Below this, and the accuracy worsens greatly. Always strive to select
transformers so that the majority of readings will be within the 20 to 100% full scale range.
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Using External Current Transformers with Other CR Devices
Many times, the application requirements do not allow using a single sensor such as a transducer or current sensing
relay. The level of the current sensed may be too great, the size of the conductor may be too large, or the location
of the sensor may not allow the placement of the transducer. In these cases, a two piece solution can be used, with
a remote or external transformer chosen for capacity, size, or location, and a transducer or current sensing relay for
input or control.
20
30
25
15
10
5
3
Typically, a standard 5 amp secondary current transformer is selected. These transformers integrate easily
with the 5 amp input transducers, transmitters and relays.
The accuracies listed under the burden values are given in percent. These values are for a full scale reading.
Percent accuracy means that the reading received from the transformer at the burden listed will be within the
percentage given of ideal. Hence, a 50 to 5 turns ratio transformer with 50 Amps through the window will
output 5 amps +/- 0.3% in the secondary into a 0.1 ohm burden. The current in the secondary will be
somewhere between 4.985 and 5.015 amps.
When the instrument connected gives the burden to the transformer in VA (volt-amps) the table can be used to
determine accuracy. Since the transformer has a 5 amp secondary, using Ohm’s Law, the impedance can be
determined. A burden of 5 VA must be equal to the current squared times the impedance in ohms. Thus, 5VA /
(5X5) = 0.2 Ohms. The accuracy of this transformer-meter system would be 0.6%.
If the impedance calculated or chosen falls between headings, use interpolation to determine accuracy.
In general, the lower the burden, the higher the accuracy.
It is critical to understand that the accuracy ratings are for a full scale reading. This accuracy will only be
maintained from 10% full scale and up. Below this, and the accuracy worsens greatly. Always strive to select
transformers so that the majority of readings will be within the 10 to 100% full scale range.
Applications
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Precision Rectifier Circuit for CT Signal Conditioning
Many times, the designer wishes to generate a DC signal from an AC current transformer for input to a PLC or data
acquisition system, or even as part of a current or motor controller. Creating DC from an AC source creates problems
with diode voltage drops and the variances over temperature and current. The following circuit provides an accurate
method for creating this DC signal.
LM324
LM324
R2
Ip
R3
R1
R4
R5
Applications
CT
H
The CT secondary current is applied to the resistor R1, which generates a voltage equal to the primary current
divided by the turns ratio and multiplied by the value of R1. This AC voltage is rectified by the first op amp,
and then amplified by the second op amp.
The gain of the first stage is always kept at 1 or unity (R2 = R3) to guarantee symmetry of the rectified
waveform. R2 should be chosen at least 10 times greater than R1 for proper accuracy.
The gain of the second stage is R5/R4 + 1. This gain is chosen to get the desired output DC voltage for the
designed input voltage.
The main advantage of this circuit is the removal of the diode drop as a variance in the signal. DC can be
generated directly from R1 by applying the AC voltage to a diode bridge. However, the AC voltage required to
do this must be greater than 2 diode voltage drops, or over 2 VAC. This limits the designer to use a silicon steel
core that can generate enough voltage before going into saturation. By using the above circuit, the AC voltage
input can be very low (10-100 mV) and then amplified to the level desired. This then allows the designer to
choose smaller core devices and nickel core devices which saturate at low voltages. Accuracy and cost are both
improved.
Use standard op amp design guidelines when setting up this circuit. Keep resistors at 1 M ohm or less, and
keep gains to 100 or less.
The output must be filtered for pure DC. The RC output network shown should be designed with a time constant
at least 10 times greater than the period of the waveform sensed. For 60 Hertz, use a time constant of 1/6.
For 400 Hz, use a time constant of 1/40, minimum.
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Low Cost Fan Control with Hysteresis
This application can be used to control many different devices. In this example, a compressor current is sensed, and
when it reaches a selected set point, the circuit turns on a relay, which controls a fan motor. The circuit is generated
with a minimum number of parts, and includes hysteresis.
VDC
FAN
FAN
R2
RELAY-DPDT
R1
NPN
R4
D1
Model 19
C1
R3
Compressor Current
The CT secondary current is applied to the resistors R1 and R2, which generates an AC voltage that is half
wave rectified by D1, and then turns on the NPN transistor. The transistor then turns on the DPDT relay, which
energizes the fan motor with one pole of the relay. The other pole of the relay is used to insert R4 into the
series R1 and R2 resistance. This immediately raises the voltage at the anode of D1, thus creating the
necessary hysteresis.
C1 provides energy storage to keep the transistor in the on state during half wave inputs. R3 discharges C1 to
aid in turn off.
The transistor should be selected keeping in mind the current gain factor, Hfe, and the turn on voltage, Vbe.
This should be weighed against the amount of secondary current received from the Model 19. Typically, a
Darlington transistor is chosen for the appropriate gain.
This design can also be applied using a bilateral silicon switch, instead of the relay shown. The transistor
activation can be used to turn on two bilateral switches, one to control a motor, and the other to provide the
hysteresis.
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Applications
H
Technical Terms
Technical Terms
Accuracy
The degree of uncertainty with which a measured value agrees with the ideal values. Accuracy class of
instrument transformers are defined by the requirements of ANSI standard number C57.13. Standard
metering accuracy classes are 0.3, 0.6 and 1.2.
Ambient Temp
Temperature of the surrounding air.
Apparent Power
The product of the applied voltage and current in ac circuit. Apparent power, or volt-amps, is not the true
power of the circuit since power factor is not considered in the calculation.
Auxiliary Power
A power source, other than that producing the measured input quantity, which supplies the power necessary
for the correct operation of the transducer.
Average RMS Responding
The measurement of an AC voltage or current obtained using a DC instrument with a rectifying input circuit
that converts AC energy to DC. The meter scale or readout is usually calibrated in terms of the corresponding
RMS values, but is accurate only for pure sinewave inputs.
Burden
In current or potential transformers burden in VA is the maximum load the transformer can support while
operating within its accuracy rating.
Calibration
Adjustment of a transducer so the output is within a specified range for particular values of the input.
Current Transformer
An instrument transformer used to accurately scale ac currents up or down, or to provide isolation. Generally
used to scale large primary or bus currents to usable values for measuring (or control) purposes. The current
Applications
measurement range is expressed as the ratio of full scale primary current to full scale secondary current. The
Delay on Energization
primary winding is connected in series with the conductor carrying the current to be measured or controlled.
There are two classification of current transformers. Window type and Wound Primary type. In Window type
current transformers the primary winding is provided by the line conductor and is not an integral part of the
transformer. In Wound Primary type the primary winding is an integral part of the transformers and usually
consist of more that one turn. Wound Primary transformers are used in applications that require very high
accuracies or where high voltage isolation is required.
A term describing a mode of operation relative to timing devices. Delay begins when the initiate switch is
closed, or on application of power to the input. Same as Delay on Make.
H
Delay on Make
Same as delay on energization.
Dielectric Strength
The continuous voltage a dielectric can withstand without deteriorating.
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Technical Terms
Technical Terms (cont.)
Effective Power
In ac measurements, effective power (measured in watts) equals the product of voltage, current and power
factor (the cosine of the phase angle between the current and the voltage).
Full Scale (F.S.)
The specified maximum value of the input quantity being measured that can be applied to a transducer with
out causing a change in performance beyond specified tolerance.
Full Scale Output
The specified maximum output value for which the stated accuracy condition applies.
Guaranteed Range
Refers to a range of adjustment or operating range whereby the control device must at least operate or
cover the "guaranteed" range.
Hysterisis
An error resulting from the inability of an electrical signal or mechanical system to produce identical readings
or position when approached slowly from either direction. Also referred to as deadband.
Impedance
The opposition in an electrical circuit to the flow of alternating (AC) current. Impedance consists of ohmic
resistance (R), inductive reactance (XL), and capacitive reactance (XC).
Inrush
The initial surge of current through a load when power is first applied. Lamp loads, induction motors,
solenoids, contactors, valves, and capacitive loads all have inrush currents higher than the normal running or
steady state currents. Resistive loads, such as heater elements, have no inrush.
Instrument Transformer
A transformer which is intended to reproduce in its secondary circuit, in a definite and known proportion, the
current or voltage of its primary circuit with the phase relations substantially preserved.
Isolation
To be electrically separate. A measure of the strength of the dielectric providing the electrical division or
Linearity
A measure of departure from straight-line response in the relationship of two quantities, where the change in
one is directly proportional to a change in the other. Normally expressed as a maximum percentage.
Loop Powered
The transducer uses the power supplied to the output current measuring loop. No auxiliary power supply is
required.
Loop Resistance
The electrical resistance, in ohms, of a complete transducer circuit exclusive of an instrument's internal
resistance.
Non-Linearity
Applications
separation.
In an ideal system, the input-output relationship between variables is linear(i.e. straight line) Any departure
from straight line is expressed as non-linearity.
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Technical Terms
Technical Terms (cont.)
Operating Voltage
A nominal voltage with a specified tolerance applied. The design voltage range to remain within the unit's
operating tolerances.
Phase Angle
The difference in time by which an alternating signal lags or leads another signal. Phase angle may be a
measure of power factor when used to indicate the relationship of a voltage to current signal for a non-resistive
load. Phase angle may also be used to measure the different in phase between the primary and secondary of a
current or voltage transformer.
Polyphase Wattmeter
A wattmeter consisting of 2 or 3 single phase wattmeters mounted in the same package. The watt sensing
elements can be electronic transducers. A dual element wattmeter will measure power in a 3 phase system
regardless of power factor, voltage or current variations between phases. Most common types are 2,2 1/2 or 3
element forms. In 4 wire circuits, with the 4th wire carrying current, the 2« or 3 element type is used. If
there is voltage imbalance, only the 3 element units can be employed.
Power
A source or means of supplying energy. The unit of measurement is the watt. 1 Horsepower is equal to
745.7 Watts.
Range
Nominal operating limits, specified by the lowest calibration point to the highest calibration point.
Rated Output
The output at standard calibration
Ratios
The relationship between the primary input value divided by the secondary output value. For example: a
Applications
current transformer that has a primary input value of 100 Amps and a secondary value of 5 Amps will have a
H
Current Ratio of 100:5 and a Turns Ratio of 20:1. It is important to use the term Current Ratio for most applica
tions because it defines the current handling capacity of wire used in the secondary winding. The
Turns Ratio only refers to the winding ratio and does not define the current handling capacity of the either
primary or secondary windings.
Real Power
Same as Effective Power.
Reactive Power
A component of apparent power (volt-amps) which does not produce any real power (watt) transfer.
Repeat Accuracy
The maximum deviation from one timing operation to the next.
Self Powered
The power required for correct operation of a transducer is supplied via the line being measured.
Separately Powered
The power required for correct operation of a transducer is supplied via an external or auxiliary power
source, rather than via the line being measured.
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Technical Terms
Technical Terms (cont.)
Setting Accuracy
The ability to accurately set a knob, switch, or other adjustment to the time delay, or other monitored parameter.
Snubber Network
A form of suppression network which consists of a series connected resistor and capacitor connected in
parallel with the output device. Helps to limit the maximum rate of rise of a voltage. Used to prevent false
turn-on of solid state outputs.
Snubber
A resistance/capacitor or diode/resistor circuit used to dissipate transient energy peaks.
Transducer
A device for converting an electrical signal into a useable direct current or voltage for measurement purposes.
RMS
The effective value of alternating current or voltage. The RMS value equates an AC signal to a DC signal which
provides the same power transfer.
True RMS Amps
The effective value of an AC signal. For an amp signal, true RMS is a precise method of stating the amp value
regardless of waveform distortion. An AC measurement which is equal in power transfer to a corresponding DC
current.
True RMS Volts
The effective value of an AC signal. For a voltage signal, true RMS is a precise method of stating the voltage
value regardless of waveform distortion. An AC measurement which is equal in power transfer to a
corresponding DC voltage.
Refers to an unequal loading of the phases in a 3 phase system (current and/or phase angle).
Watt
Unit of electrical power. WATTS=E*I*PF
VA
The product of the RMS voltage applied to a circuit and the RMS current, in amperes, flowing through it.
VAR(Volt-Amperes Reactive) The unit of reactive power as opposed to real power(watts).
Applications
Unbalanced Loads
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Calculating Ratio Errors
UNDERSTANDING CURRENT TRANSFORMER RATIO ERROR AND EXCITATION CURVES
A current transformer follows all the standard physical laws for electrical transformers. The primary winding is usually a very low impedance and therefore treated as a "brute force" constant current source. Faraday's law of ampere-turn balance states that the number of
turns in the primary winding times the primary current must equal the number of turns in the secondary winding times the secondary
current. Therefore, since the primary is a constant current source, the secondary becomes a constant current source proportional only to
the turns ratio.
Other factors come in to play that affect the basic Faraday's relationship, such as the non-linear properties of the core material, eddy current, hysteresis and IR losses. As Figure 1 illustrates, the eddy current and hysteresis losses act to shunt current across the transformer
secondary and are defined as excitation losses IE. Since the excitation losses are non-linear, they are determined from an Excitation Curve
provided by the transformer's manufacturer. The IR losses act as a resistance RS in series with the secondary winding.
As Figure 2 illustrates, the secondary voltage Es is found on the vertical axis and the secondary exciting current IE can be found on the
horizontal axis. This exciting current can best be described as the current that contributes to the current transformation ratio error.
Power transformers use the terms "Load" and "Regulation" to describe their operation. Current transformers use the terms "Burden" and
"Accuracy" respectively to describe similar functions. Burden defines the connection made to the secondary winding to differentiate it from
the primary connection that is generally described as the Load. Current transformers use the term Accuracy to describe what would generally be considered Regulation with a power transformer. It is important to remember that Burden and Accuracy are interdependent; generally the lower the Burden resistance, the better the Accuracy.
Designs that have the current transformer separate from the instrumentation resistor RI need to consider transformer ratio error. An
Applications
example would be an ampere meter that uses an external current transformer. The transformer must have an accurately-defined current
ratio to allow for interchangeability with other transformers of the same rating.
Designs that have the current transformer as an integral part of the instrumentation can place less emphasis on ratio error and consider
more on the transformer's linearity. An example would be a printed circuit-board-mounted current transformer that inputs into an operational amplifier circuit. Ratio error can generally be minimized during calibration with adjustment to the offset and gain controls. The
major concern to the overall accuracy of the design would then be linearity of the transformer through out the operating range.
In practice, the designer must consider various factors in selecting a current transformer: since the secondary is operating as a constant
current source, a Burden resistor of lower value will provide improved accuracy but decrease instrumentation voltage (V=IR). As the
instrumentation voltage is increased with a high Burden resistor, the power dissipated may become a factor (P = I2 R). Generally the
designer determines the lowest voltage the electronics can handle considering such parameters as circuit noise and gains. Then the value
of the burden resistor can be determined, knowing the characteristics of the current transformer and overall design requirements.
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Calculating Ratio Errors
UNDERSTANDING CURRENT TRANSFORMER RATIO ERROR AND EXCITATION CURVES
An example of calculating the actual secondary current, instrumentation voltage and error percentage is as follows:
Determine the total burden terminal resistance RB across the secondary of the current transformer.This includes the secondary instrumentation resistance RI and any resistance in the interconnecting leads RL.
For: RI = 0.02 ohm & RL = 0.01 ohm RB =.02 +.01 = .03 ohm
Add the total burden resistance to the secondary winding DC resistance RS.From figure 2 for a 200:5 current ratio transformer:
RS = 0.034 ohms.03 + 0.034 = .064 ohms
Select a value of secondary current at a point you desire to determine the ratio error
For: IS = 3.75 A
Calculate the secondary voltage ES required for the current to flow through the total secondary resistance.
ES = IS x R ES = 3.75 x 0.064 = .24 V
Find the secondary voltage ES on the vertical scale of the excitation curve and read over to the 200 line and down to the horizontal scale
for the secondary exciting current IE.
IE = .013 A
The primary current will be the turns ratio times the sum of the exciting current and the secondary current
IP = NS / NP x (IE + IS). IP = 40 x (.013 + 3.75) = 150.52 A7.
The voltage developed across the instrumentation resistor will be the secondary current times the instrumentation resistor
EI = IS x RI.EI =3.75 x .02 = 0.075 V
CURRENT TRANSFORMER RATIO ERROR AND EXCITATION CURVES
R
N
S
S
R
X2
L
N
P
H2
E
H1
R
S
1
E
1
I
I
E
P
H
IS
X1
N
P
X
I
P
=
Applications
To calculate the percentage ratio error,divide the exciting current by the secondary current times 100.
IE / IS x 100..013 / 3.75 x 100 = 0.35 %
N
S
( IE + IS )
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AC Motor Loads & Standard Voltages
AC MOTOR LOAD CHART
MOTOR FULL LOAD CURRENTS
SINGLE
PHASE
HP
1/2
3/4
1
11/2
2
3
5
71/2
10
15
20
25
30
40
50
60
75
100
125
150
200
OVER
200HP
APPROX.
AMPS/HP
115 V
9.8
13.8
16
20
24
34
56
80
100
230 V 115 V
4.9
4
6.9
5.6
8
7.2
10
10.4
12
13.6
17
28
40
50
MAXIMUM LOCKED ROTOR CURRENTS
3-PHASE A.C. INDUCTION
200 V
2.3
3.2
4.15
6
7.8
11
17.5
25
32
48
62
78
92
120
150
177
221
285
358
415
550
230 V
2
2.8
3.6
5.2
6.8
9.6
15.2
22
28
42
54
68
80
104
130
154
192
248
312
360
480
460 V
1
1.4
1.8
2.6
3.4
4.8
7.6
11
14
21
27
34
40
52
65
77
96
124
156
180
240
575 V
.8
1.1
1.4
2.1
2.7
3.9
6.1
9
11
17
22
27
32
41
52
62
77
99
125
144
192
2.75
2.40
1.20
.96
3-PHASE A.C. INDUCTION
2300 V 4160 V 200 V
23
29
34.5
46
57.5
73.5
106
146
186
267
334
420
500
667
834
16
8.9
1000
20
11
1250
26
14.4
1670
31
17
2085
37
20.5
2500
49
27
3340
.24
220/230 V 440/460 V 550/575 V 2300 V 4160 V
20
10
8
25
12.5
10
30
15
12
40
20
16
50
25
20
64
32
25
92
46
37
127
63
51
162
81
65
232
116
93
290
145
116
365
182
146
35
19
435
217
174
41
23
580
290
232
55
30
725
362
290
69
38
870
435
348
83
46
1085
592
435
104
57
1450
725
580
139
76
1815
907
726
173
96
2170
1085
870
208
115
2900
1450
1160
278
153
.133
Applications
*This information provided as reference only. Consult motor manufacturer and related standards for additional information.
U.S. Standard Voltages
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3 Phase Circuits and Load Calculations
3 Phase Balanced Loads
3 Phase Unbalanced Loads
Applications
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Flow/Wave Soldering Specification
Products: CR8300 Series PCB Mount Current Transformers
Pb-Free Soldering Process
+ 250º C
MAX. TEMP
+ 200º C
TEMP
+ 260º C
+ 150º C
NATURAL COOLING
+ 100º C
+ 50º C
5 seconds
maximum in wave
Applications
TIME
The above flow-wave soldering profile applies to all CR8300 and Custom CR8400 PCB
Mount Current transformers.
The temperatures shown above, reflect the conditions seen by the component lead wires
Exposure of the component body to excessive heat during curing, preheat and soldering
operations, may result in damage to the component.
It is recommended that leaded components be installed after relow soldering of surface mount
components is completed.
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Ohm’s Law
DC Systems
AC Systems
Applications
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Text References
F.B. Silsbee
A Shielded Resistor for Voltage Transformer Testing
U.S. Bureau of Standards Scientific Papers, Vol.20, 1926 pp.489-514
A.L. Brownlee
A Primary Method of Measuring the Ratio and Phase Angle of Current Transformers
AIEE Transactions, Vol. 69, part I, 1950, pp. 459-460
S.D. Moreton
A Simple Method for the Determination of Bushing-Current-Transformer Characteristics
AIEE Transactions, Vol. 62,1943, pp.581-585
O. A. Petersons
A Self-Balancing High-Voltage Capacitance Bridge
IEEE Transactions on Instrumentation and Measurement, Vol. IM-13, NO 4, Dec 1964,
pp. 216-224
O. Petersons
A Self-Balancing Current Comparator
IEEE Transactions on Instrumentation and Measurement, Vol. IM-15, nos 1 and 2,
Mar/Jun 1966, pp. 62-71
Applications
G. Camilli and R.L.Ten Broeck
A Proposed Method for the Determination of Current Transformer Errors
AIEE Transactions, Vol.59,1940, pp.547-550
H
H.S. Shott and H. A. Peterson
Criteria for Neutral Stability of Wye-Grounded-Primary Broken-Delta Secondary
Transformer Circuits
AIEE Transaction, Vol.60,1941, pp.997-1002
L. J. Powell
Current Transformer Burden and Saturation
I&CPS Conference Record, 1977
Arthur Wright
Current Transformers
London: Chapman and Hall, Ltd., 1968
E.C.Wentz and W.K. Sonnemann
Current Transformers and Relays for High Speed Differential Protection, With Particular
Reference to
Offset Transient Currents
AIEE Transactions, Vol.59,1940, pp.481-488
D.J. West
Current Transformer Application Guidelines
1977 I&CPS Conference Record
Arthur Wright
Current Transformers (book)
Chapman and Hall, Ltd., London 1968
T.M. Souders
A Wide Range Current Comparator System for Calibrating Current Transformers
IEEE Transactions on Power Apparatus and Systems, Vol. PAS-90, no 1, Jan/Feb 1971,
pp. 318-323
A.H.M. Arnold
Current-Transformer Testing
Journal of the IEE, vol. 74, 1934, pp. 424-444
J.J. Park
Accuracy of High-Range Current Transformers
U.S. Bureau of Standards Journal of Research, Vol.14,1935, pp. 367-392
F.W.Peek, Jr.
Dielectric Phenomena in High Voltage Engineering; 3rd ed.
New York, McGraw-Hill Book Company, Inc. 1929
J.P. Gebelein and J.A. Elzi
Analysis of Bushing-Current-Transformer Performance
AIEE Transactions, Vol.59,1940,pp.541-546
Theodore Wildi
Electrical Machines, Drives, and Power Systems (2nd Edition)
Prentice Hall, 1991,1981 by Sperika Enterprises Ltd.
Applied Protective Relaying
Newark, N.J. Westinghouse Electric Corporation, 1976
Vincent Del Toro
Electromechanical Devices for Energy Conversion and Control Systems
New Jersey: Prentice-Hall, Inc.,1968
C.R. Mason
Art and Science of Protective Relaying
New York: John Wiley and Sons, Inc., 1956
Reuben Lee, Leo Wilson, Charles E. Carter
Electronic Transformers and Circuits (3rd Edition)
John Wiley & Sons, A Wiley-Interscience Publication
F.S. Rothe and C. Concordia
Characteristics of Current Transformers During Faults, Part II
AIEE Transactions, Vol.66,1947,pp.731-734
F.B. Silsbee, R.L. Smith, N.L. Forman, and J.H. Park
Equipment for Testing Current Transformers
U.S. Bureau of Standards Journal of Research, Vol. 11, Jul 1933, pp. 93-122
A.T.Sinks
Computation of Accuracy of Current Transformers
AIEE Transactions, Vol.59,1940, pp.663-668
E.G. Reed
Essentials of Transformer Practice
New York, D.Van Nostrand Company, Inc. 1927
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154
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Text References
Contents Listing
I.F. Kinnard
Functional Analysis of Measurements
AIEE Transactions, Vol.60,1946,pp.987-992
Westinghouse Electric Corporation
Relay-Instrument Division
Applied Protective Relaying
Newark, New Jersey, 1976
William M. Flanagan
Handbook of Transformer Design and Applications (2nd Edition)
McGraw-Hill, Inc.
C.L. Schuck
How to Fuse Potential Transformer Primary Circuits
General Electric Review, July 1941, pp.385-389
R.G. Bruce and A. Wright
Remanent Flux in Current Transformer Cores
Proceedings, IEE, Vol.113, No.5, May 1966,p.915
ANSI Standard C57.13-1968
Requirements for Instrument Transformers
American National Standards Institute
F.R.D'Entremont
How to Use Certificate Test Values to Determine Complete Potential Transformer Accuracy
Characteristics
Transmission and Distribution, Dec.,1951
American National Standards Institute
Requirements for Instrument Transformers
ANSI Standard C57.13-1968
ANSI/IEEE C57.13-1978
IEEE Standard Requirements for Instrument Transformers
Instrument Transformer Burden Data.
Schenectady, NY: General Electric Company, GET-1725,1961
B. Hague
Instrument Transformers
London, Sir Isaac Pitman and Sons, Ltd., 1936
Manual of Instrument Transformers
Schenectady, NY: General Electric Company, GET-97, 1975.
F.K. Harris, W.C. SZE, N.L. Kusters, O. Petersons, and W.J.M. Moore
An International Comparison of Voltage-Transformer Calibrations to 350 kV.
IEEE Transactions on Communication and Electronics, Vol. 83, Jan 1964, pp. 13-19
L.F. Kennedy and A.T. Sinks
New Current Transformer for Bus Differential Protection
AIEE Transactions, Vol.60,1941, pp.1180-1187
G.Camilli
New Developments in Potential Transformer Design
AIEE Transactions, Vol. 62,1943, pp.483-487
Eric Lowdon
Practical Transformer Design Hankbook (2nd Edition)
Tab Professional and Reference Books, Blue Ridge Summit, PA
F.B. Silsbee
Precautions Against Stray Magnetic Fields in Measurements with Large Alternating
Currents
AIEE Transactions, Vol. 48, Oct 1929, pp. 1301-1306
A.H.M. Arnold
Precision Testing of Current Transformers
Journal of the IEE, Vol. 68, 1930, pp. 898-905
H.C. Barnes and A.J. McConnell
Some Utility Ground Relay Problems
AIEE Transactions Vol., 74,1955,p.417
C.M.Foust and N. Rohats
Some Recent Developments in Impulse Voltage Testing
AIEE Transactions, Vol. 59, 1940, pp.257-265
D.G.Fink and H.W. Beaty
Standard Handbook for Electrical Engineers
New York: McGraw-Hill, 1978
R. A. Pfuntner
The Accuracy of Current Transformers Adjacent to High-Current Buses
AIEE Transactions, Vol. 70, part II, 1951, pp. 1656-1662
N.L. Kusters
The Precise Measurement of Current Ratios
IEEE Transactions on Instrumentation and Measurement, Vol. IM-13, Dec 1964, pp.
197-209
N.L. Kusters, and W.J.M. Moore
The Compensated Current Comparator; A New Reference Standard for CurrentTransformer Calibrations inIndustry
IEEE Transactions on Instrumentation and Measurement, Vol. IM-13, Jun/Sept 1964,
pp.107-114
C.T. Weller
Relative Accuracy of Three-phase Metering Combination
AIEE Transactions, Vol. 60,1941,pp.925-929
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Applications
C.A. Woods, Jr. and S.A. Bottonari
Overcurrent Performance of Bushing Type Current Transformers
AIEE Transactions, Vol.59, 1940, pp.554-560
L.F. Hunt and J. H. Vivian
Sensitive Ground Protection for Radial Distribution Feeders
AIEE Transactions, Vol.59,1940,pp.84-90
H
Applications
Text References
P.N. Miljanic, N.L. Kusters, and W.J.M. Moore
The Application of Current Comparators to the Calibration of Current Transformers at Ratios up to 36 000/5
Amperes
IEEE Transactions on Instrumentation and Measurement, Vol. IM-17, Sept 1968, pp. 196-203
R. Davis
The Design and Construction of a Shielded Resistor for High Voltages
Journal of the IEE, Vol.69,1931, pp. 1028-1034
C.R. Mason
The Art and Science of Protective Relaying
New York:Wiley 1956
Hal Gibson
The Effect on Accuracy of the Location of Conductors in a Window-type Current Transformer
Industrial Power Systems Magazine, Vol.11 No.1, March 1968
W.K. Clothier and L. Medina
The Absolute Calibration of Voltage Transformers
Proceedings of the IEE, Vol. 104A, Jun 1957, pp. 204-214
N.L. Kusters, and O.A. Petersons
Transformer-Ratio-Arm Bridge for High-Voltage Capacitance Measurements
IEEE Transactions on Communications and Electronics, No. 69, Nov 1963, pp. 606-611
IEEE Power Engineering Society
Transient Response of Current Transformers
IEEE 76CH1130-4 PWR, January 1976
IEEE Publication 76 CH1130-4 PWR
Transient Response of Current Transformers
Applications
IEEE Protective Relay Committee
Transient Response of Current Transformers
IEEE Publication 76CH1130-4 PWR
Electric Utility Engineering Reference Book:
Vol. 3, Distribution Systems
Trafford, PA: Westinghouse Electric Corporation, 1965
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Application Notes
Applications
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CR Magnetics, Inc. has been in operation since 1986, and is centrally located in St. Louis, Missouri, where we maintain a
40,000 square foot manufacturing facility and warehouse. CR Magnetics also maintains manufacturing and sales offices
worldwide, including East Asia, Europe, and the Americas. CR Magnetics philosophy is to provide a complete line of products
and components that enables our customers to solve the challenges they face in an ever changing competitive environment.
With rising energy costs and shrinking margins, maintaining efficiencies of operations, processes, and capital equipment is of
utmost concern to today’s Industrial and Equipment Engineer. We strive to provide the most cost effective and sophisticated
products available, and also provide expert engineering assistance when our customers are faced with tough applications.
Electrical Systems Measurement and Monitoring Products
Analog Transducers
Current Transformers
Indicators
Sensing Relays
Custom Packages
Potential Transformers
Digital Transducers
Displays
3500 Scarlet Oak Blvd., St. Louis, MO 63122
Phone: 636-343-8518, Fax: 636-343-5119
Web: http://www.crmagnetics.com
E-mail: [email protected]
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