Thermistor motor protection relays

Thermistor motor protection relays
Thermistor motor protection relays
Benefits and advantages
Selection table
Operating principle and examples of use of the thermistor motor protection relays
Under normal operating conditions the resistance value is below the
response value.
If only one of the PTC resistors heats up excessively, the output relay
de-energizes.
After cooling down the output relay energizes automatically, if
autoreset is configured.
Devices with hand (push button on front) or remote reset
configuration must be controlled on the control input with the required
signal.
The Thermistor motor protection relays control motors fitted with PTC
resistor sensors. The temperature sensors are incorporated in the
starter windings and measure directly the motor heating. Direct
control is guaranteed under the following operating conditions:
Further application possibilities:
The relay is independent of the motor rated current and the method
of starting.
The PTC resistor sensors are connected in series with the terminals
Ta and Tb (resp. Ta and Tbx, without short circuit detection). The
number of PTC resistor sensors is limited by the sum of the PTC
sensor resistors of the individual resistors.
RG = R1 + R2 + RN ≤ 1.5 kΩ.
Temperature monitoring of equipment fitted with PTC resistor
sensors, e.g.:
Machine roller bearings
Hot-air ventilators
Oil
Air
Heating installations
Resistance characteristic
of one temperature sensor to DIN 44 081.
1SVC 110 000 F 0139
Measuring and
monitoring relays
heavy duty,
high switching frequency,
single-phasing,
high ambient temperature
insufficient cooling
breaking a motor
unbalance
NAT = rated response temperature
Product overview: Thermistor motor protection
Type
CM-MSE
CM-MSS
CM-MSS
CM-MSS
CM-MSS
CM-MSS
CM-MSS
CM-MSN
Number of sensor
circuits
1
1
1
1
1
2
3
6
Wire break
monitoring
•
•
•
•
•
•
•
•
•
•
•
•
•
Function
Measuring range
Short circuit
detection
1)
-
-
-
-
-
-
-
•
Auto reset
•
•
Manual reset
-
-
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1n/o + 1n/c
1c/o
per
sensor circuit
1n/o +1n/c
total evaluation
Non-volatile
fault storage
2)
•
2)
•
2)
•
2)
Operation/ Reset
Remote reset
-
-
•
•
•
Test button
-
-
-
2)
2)
2)
•
2)
•
•
•
Output contacts
Principle of operation
closed-circuit principle
Number / Type
1n/o
Width
1c/o
2c/o
2c/o
22.5 mm
Supply voltages
and Order code
24ACV
24VAC/DC
110-130VAC
220-240VAC
380-415VAC
24-240VAC/DC
RS 442-9102
RS 442-9405
1) Configurable via terminals
Remark: 1c/o = SPDT; 2c/o = DPDT
RS 442-9348
2) Auto reset configurable by a permanent link (jumber) by connection terminals S1-T2
1 n/o + 1n/c
total evaluation
45 mm
Thermistor motor protection relays
CM-MSE, CM-MSS
Ordering details
CM-MSE
CM-MSE
A1-A2
Supply voltage
T1-T2
Sensor circuit
13/14
Output contact
closed-circuit principle
Supply voltage
Order number
Pack. unit
piece
24 VAC
110-130VAC
220-240VAC
1SVR 550 805 R 9300
1SVR 550 800 R 9300
1SVR 550 801 R 9300
1
1
1
RS 442-9405
A1-A2
Supply voltage
T1-T2
Sensor circuit
11-12/14
Output contacts
Closed-circuit principle
1SVC 110 000 F 0141
b
Automatic reset
Several sensors can be connected
1c/o, 2 LEDs
Control of bimetals
Approval
,
1SVC 110 000 F 0142
1SVR 430 801 F 1100
CM-MSS, automatic reset
c
Type
Supply voltage
Order number
Pack. unit
piece
24 VAC/DC
220-240VAC
1SVR 430 800 R 9100
1SVR 430 801 R 1100
1
1
CM-MSS, Automatic reset
CM-MSS
b
X1
,
,
A1 - A2
Supply voltage
T1-T2
Sensor circuit
S1-S2
Remote reset
jumper = without storage
11-12/14
Output contacts
21-22/24
Closed-circuit principle
X1
T3
S1
c
FernrückRemote
stellung
reset
1SVC 110 000 F 0520
a
Storage resettable
Reset button
Remote reset
2c/o, 2 LEDs
Approvals
,
1SVC 110 000 F 0519
1SVR 430 811 F 1300
CM-MSS, 2 c/o with reset button1)
until 06/2003
Supply voltage
Type
Order code
Pack. unit
piece
1SVR 430 810 R 9300
1SVR 430 811 R 9300
1SVR 430 811 R 0300
1SVR 430 811 R 1300
1
1
1
1
CM-MSS, 2 c/o
CM-MSS
24VAC/DC1)
24VAC
110-130VAC
220-240VAC
b
c
Storage resettable
Storage reset button
Remote reset capability
2c/o, 2 LEDs
Short circuit monitoring
of the sensor cable
Approvals
II (2) G, PTB 02 ATEX 3080,
CM-MSS 2 c/o with config.
short circuit monitoring
a Reset
b Red LED - fault tripping
c Green LED - supply voltage
Remark: 1c/o = SPDT; 2c/o = DPDT
Type
CM-MSS
Supply voltage
24 VAC/DC
110-130VAC
220-240VAC
380-415 VAC
,
Remote reset =
without strorage
Measuring circuit =
without short circuit
monitoring
A1-A2
Supply voltage
11-12/14
21-22/24
Output contacts
Closed-circuit principle
with short circuit
monitoring
Order code
Pack.-unit
piece
1SVR 430 710 R 9300
1SVR 430 711 R 0300
1SVR 430 711 R 1300
1SVR 430 711 R 2300
1
1
1
1
Remote
reset
1SVC 110 000 F 0144
a
1SVC 110 000 F 0143
1SVR 430 811 F 1300
CM-MSS 2 c/o with reset button and short circuit monitoring configurable
RS 442-9102
RS 442-9348
Measuring and
monitoring relays
Type
1SVC 110 000 F 0140
1SVR 550 801 F 9300
Automatic reset
Several sensors can be connected
(max. 6 sensors in series)
Control of bimetals
1n/o
Excellent cost / performance ratio
Approval
,
1SVC 110 000 F 0141
CM-MSE
Thermistor motor protection relays CM range
Technical data and standards
CM-MSE, CM-MSS, CM-MSN
A1-A2
A1-A2
A1-A2
A1-A2
A1-A2
A1-A2
Measuring circuit
Monitoring function
Number of sensor circuits
Short circuits detection
Non volatile storage
Test function
approx. 1.5VA
approx. 1.1VA/0.6W
approx. 1.5VA
approx. 1.5VA
approx. 1.7VA
approx. 1.4-1.7W / approx. 3.5-5.7VA
-15%...+10%
AC: 50-60Hz AC/DC: 15-400Hz
100%
T1-T2/T2x, 1Ta...1Tb-T2
Temperature control with PTC sensors
1, 2, 3 or 6, see ordering details
see ordering details
see ordering details
see ordering details
Sensor circuit
Temperature switch off resistance (relay de-energizes)
Temperature switch on resistance (relay energizes)
Short circuit switch off resistance (relay de-energizes)
Short circuit switch on resistance (relay energizes)
Max. total resistance in cold states
Max. cable length for short circuit detection
Reaction time
3.6kOhm +/-5%, CM-MSE: 2.7-3.7kOhm, (3050+/-550Ohm3) )
1.6kOhm +/-5%, CM-MSE: 1.7-2.3kOhm, (1900+/-400Ohm3) )
<20Ohm
>40Ohm
<=1.5kOhm
2x100m at 0.75mm 2, 2x400m at 2.5mm2
<100ms
Control circuit for storage and hysteresis function
Remote reset S1-T2
Max. no load voltage
Max. cable length
n/c contact
approx. 25V, 5.5V (24-240VAC/DC versions)
<=50m, 100-200m shielded
Display of operational status
Supply voltage
Fault tripping
Output circuits
Number of contacts
Opened circuits principle 1)
Contact material
Rated voltage acc. to VDE0110, IEC664-1, IEC947-1
Rated switching voltage max.
Rated switching current AC12 (resistive) 230V
Rated switching current AC15 (inductive) 230V
Rated switching current DC12 (resistive) 24V
Rated switching current DC13 (inductive) 24V
Maximum mechanical life
Maximum electrical life (acc. to AC12, 230V, 4A)
Short circuit proof, max. fuse rating
U - Green LED
F - Red LED
n/c
n/o
General data
Enclosure width
Wire size
Weight
Mounting position
Degree of protection: housing / terminals
Operating temperature
Storage temperature
Mounting
Standards / directives
Product standard
Electromagnetic compatibility
ESD acc. to IEC61000-4-2, EN61000-4-2
HF- radiation resistance acc. to IEC61000-4-3, EN61000-4-3
Burst acc.to IEC61000-4-4, EN61000-4-4
Surge acc. to IEC61000-4-5, EN61000-4-5
HF line emmision acc. to IEC61000-4-6, EN61000-4-6
Low voltage directive
Operating safety
Resistance to vibration
Environmental tests acc. to IEC68-2-30 Db
Approvals
Isolation data
Rated insulation between supply-, measuring- a. output circuit
Rated impulse withstand voltage between all isolated circuits
Test voltage between all isolated circuits
Pollution category
Overvoltage category
2)
1SVR 430 710 R 0200
1SVR 430 8xx R xxxx
3)
1SVR 430 810 R 9300, 1SVR 430 800 R 9100
Remark: 1c/o = SPDT; 2c/o = DPDT
11-12/14, 21-22/24, 13-14, 21-22
1n/o, 1c/o, 2c/o, 1n/c + 1c/o
closed-circuit principle
AgCdO
250 V
250V
4A
3A
4A
2A (1.5A - n/c2))
30 (10 2) ) x 106
0.1 x 106
2A (4A2)) fast, operation class gL
10A (6A2)) fast, operation class gL
22.5mm / 45mm CM-MSN
2 x 2.5mm2 (2 x 14 AWG) stranded with wire end ferrule, CM-MSE: 2x1.5mm2 (2 x 16 AWG)
approx 150g/0.33lb, CM-MSE: approx. 110g/0.24lb
any
IP50 / IP20
-20°C...+60°C, CM-MSN: -25°C...+65°C
-40°C...+80°C
DIN rail (EN50022)
IEC255-6, VDE0660 T302, T303, EN60947-5-1
89/336 EWG, 91/263 EWG, 92/31 EWG, 93/68 EWG, 93/67 EWG
Level 3 - 6 kV / 8 kV
Level 3 - 10 V/m
Level 3 - 2 kV / 5 kHz
Level 3/4 - 1/2 kV
Level 3 - 10 V
93/68/EWG
4G
10G, f = 55Hz, a = 0.95 mm, t = 2h per level
24h Zyklus, 55°C, 93% rel., 96h
cULus, part. GL, part. ATEX, GOST
250V
4kV / 1.2 - 50µs
2.5kV, 50Hz, 1min.
3
3
Measuring and
monitoring relays
Input circuit
Supply voltage - power consumption:
24VAC
24VAC/DC
110-130VAC
220-240VAC
380-440VAC
24-240VAC/DC
Tolerance of supply voltage
Supply voltage frequency
Duty cycle
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising