IEC Power Control
IEC Power Control
Overload Relays
Contents
Thermal overload relays
CAGE
3RU11 overload relays up to 100 A
with screw connection,
CLASS 10
Selection and ordering data
Basic unit
Accessories
Page
3/9
3/11
Technical data
Description
C i r c u i t d i a g r am s
Dimension drawings
3/12-14
3/ 7 - 8
3/16
3/17
CLAM
P
3RU11 overload relays up to 100 A
with Cage Clamp connection,
CLASS 10
Selection and ordering data
Basic unit
Accessories
Technical data
Description
Circuit diagrams
Dimension drawings
Page
3/10
3/11
3/12-14
3/ 7 - 8
3/16
3/18
TSolid-state overload relays
h
3RB20/21 overload relays
up to 630 A,
3RB20 CLASS 10 or 20
3RB21 CLASS 5, 10, 20, 30
Page
3RB22/23 overload relays
up to 820 A for full motor
protection, CLASS 5 to
CLASS 30 adjustable
Selection and ordering data
Basic unit
Accessories
3/23-26
3/53-54
Selection and ordering data
Basic unit
Accessories
Technical data
Description
Circuit diagrams
Dimension drawings
Cross Reference Aid
3/27-30
3/ 1 9 - 2 1
3/34
3/33
3/22
Technical data
Description
Circuit diagrams
Dimension drawings
Cross Reference Aid
Siemens Industry, Inc.
Industrial Controls Catalog
3UF7 SIMOCODE Pro
Motor management and
control devices
Page
3/38
3/39
3/43-46
3/ 3 5 - 3 6
3/51
3/49-50
3/37
Page
Selection and ordering data
Basic unit
Accessories
3/58
3/59-64
Technical data
Descri ption
D imensio n dr awi ngs
3/65-70
3/ 5 6 - 5 7
3/71-74
3/1
Protection Equipment
Introduction
Type
3RU11
3RB20
3RB21
3RB22/3RB23
Alternating current, 1-phase
–
–
Direct current
–
–
–
S00, S0, S2, S3
S00 ... S12
S00 ... S12
S00 ... S12
Overload relays up to 630 A
Applications
Plant protection
Motor protection
Alternating current, 3-phase
Size of contactor
Rated operational current Ie
Size S00
Size S0
A
A
up to 12
up to 25
up to 12
up to 25
up to 12
up to 25
} up to 25
Size S2
Size S3
A
A
up to 50
up to 100
up to 50
up to 100
up to 50
up to 100
} up to 100
Size S6
Size S10/S12, size 14 (3TF6)
A
A
---
up to 200
up to 630
up to 200
up to 630
up to 200
up to 630
Rated operational voltage Ue
V
690/1000 AC1)
690/1000 AC1)
690/1000 AC1)
690/1000 AC2)
Rated frequency
Hz
50/60
50/60
50/60
50/60
CLASS 10
CLASS 10,
CLASS 20
CLASS 5, 10, 20, 30
adjustable
CLASS 5, 10, 20, 30
adjustable
0.11 ... 0.16
up to
80 ... 100
--
--
--
A
A
--
0.1 ... 0.4
up to
160 ... 630
0.1 ... 0.4
up to
160 ... 630
0.3 ... 3
up to
63 ... 630
0.04
to
45
0.04 ... 0.09
up to
90 ... 450
0.04 ... 0.09
up to
90 ... 450
0.09 ... 1.1
up to
37 ... 450
Trip class
Thermal
overload release
Solid-state
overload release
A
A
Rating for induction motor at
400 V AC
kW
kW
Accessories
For sizes
S00
S0
S2
S3
S00 S0
S2
S3
S6
S10/ S00 S0
S12
S2
S3
S6
S10/ S00 S0
S12
S2
S3
S6
S10/
S12
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
3)
Mechanical RESET
--
--
--
--
--
--
Cable release for RESET
--
--
--
--
--
--
Terminal brackets for stand-alone
installation
Electrical remote RESET
Terminal covers
--
Sealable covers
for setting knobs
Integrated in the unit
--
--
--
--
--
--
--
--
--
--
Integrated in the unit
Integrated in the unit
--
--
--
--
--
--
1) Size S3 and larger up to 1000 V AC.
2) Sizes S6 and S10/12 up to 1000 V AC.
3) Stand-alone installation without accessories is possible.
available
-- not available
3/2
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
General data
Overview
Features
Benefits
3RU11
3RB20/3RB21
3RB22/3RB23
S00 ... S12
S00 ... S12
0.1 ... 630 A
0.3 ... 630 A
( ... 820 A)1)
General data
Sizes
• Are coordinated with the dimensions, connections S00 ... S3
and technical characteristics of the other devices
in the SIRIUS modular system (contactors,
soft starters, ...)
• Permit the mounting of slim and compact load
feeders in widths of 45 mm (S00), 45 mm (S0),
55 mm (S2), 70 mm (S3), 120 mm (S6) and
145 mm (S10/S12)
• Simplify configuration
Seamless current range
• Allows easy and consistent configuration with one 0.11 ... 100 A
series of overload relays (for small to large loads)
Protective functions
Tripping in the event of overload
• Provides optimum inverse-time delayed protection
of loads against excessive temperature rises due
to overload
Tripping in the event of phase
unbalance
• Provides optimum inverse-time delayed protection
of loads against excessive temperature rises due
to phase unbalance
Tripping in the event of phase failure
• Minimizes heating of induction motors during
single-phase operation 2)
Tripping in the event of overheating
• Provides optimum temperature-dependent protection of loads against excessive temperature
rises e.g. for stator-critical motors or in the event of
insufficient coolant flow, contamination of the
motor surface or for long starting or braking
operations
by
integrated thermistor motor
protection function
( )
-- 3)
-- 3)
• Eliminates the need for additional special
equipment
• Saves space in the controlgear cabinet
• Reduces wiring overhead and costs
Tripping in the event of a ground fault • Provides optimum protection of loads against
high-resistance short-circuits or ground faults due
by
to moisture, condensed water, damage to the
insulation material, etc.
internal ground fault detection
• Eliminates the need for additional special
(activatable)
equipment.
-(only 3RB21)
• Saves space in the controlgear cabinet
• Reduces wiring overhead and costs
Features
RESET function
• Allows manual or automatic resetting of the relay
Remote RESET function
• Allows the remote resetting of the relay
(by means of
separate module)
TEST function for auxiliary contacts
• Allows easy checking of the function and wiring
TEST function for electronics
• Allows complete checking of the electronics
Status display
• Displays the current operating status
Large current adjustment button
• Makes it easier to set the relay exactly to the
correct current value
Integrated auxiliary contacts
(1 NO + 1 NC)
• Allows the load to be switched off if necessary
• Can be used to output signals
(only 3RB21 with
24 V DC)
--
(2 ×)
1) For motor currents up to 820 A, a current measuring module, e.g.
0.3 ... 3 A, can be used in combination with a 3UF18 series transformer.
2) Single-phase operation: Abnormal operating status of a three-phase
asynchronous motor where one phase is interrupted.
3) The SIRIUS 3RN thermistor motor protection devices can be used to
provide additional temperature-dependent protection.
Siemens Industry, Inc.
Industrial Controls Catalog
3/3
Overload Relays
SIRIUS
General data
Features
Benefits
3RU11
3RB20/3RB21
3RB22/3RB23
Design of load feeders
Short-circuit strength up to 100 kA
• Provides optimum protection of the loads and
at 690 V
operating personnel in the event of short-circuits
(in conjunction with the corresponding
due to insulation faults or faulty switching
fuses or the corresponding motor starter operations
protector)
Electrical and mechanical matching
to 3RT1 contactors
1)
• Simplifies configuration
• Reduces wiring overhead and costs
• Enables stand-alone installation as well as
space-saving direct mounting
Straight-through transformers for
main circuit2)
(in this case the cables are routed
through the feed-through openings of
the overload relay and connected
directly to the box terminals of the
contactor)
• Reduces the contact resistance
(only one point of contact)
Spring-loaded terminal connection
system for main circuit2)
• Enables fast connections
-(S2 ... S6)
(S00 ... S6)
--
--
(1:4)
(1:10)
• Saves wiring costs
(easy, no need for tools, and fast)
• Saves material costs
• Reduces installation costs
• Permits vibration-resistant connections
(S00)
• Enables maintenance-free connections
Spring-loaded terminal connection
system for auxiliary circuits2)
• Enables fast connections
• Permits vibration-resistant connections
• Enables maintenance-free connections
Other features
Temperature compensation
• Allows the use of the relays at high temperatures
without derating
• Prevents premature tripping
• Allows compact installation of the controlgear
cabinet without distance between the
devices/load feeders
• Simplifies configuration
• Enables space to be saved in the controlgear
cabinet
Very high long-term stability
• Provides safe protection for the loads even after
years of use in severe operating conditions
Wide setting ranges
• Reduces the number of versions
( )
--
• Minimize the engineering outlay and costs
• Minimize storage overhead, storage costs,
tied-up capital
Trip class CLASS 5
• Enables solutions for very fast starting motors
requiring special protection (e.g. Ex motors)
--
Trip classes > CLASS 10
• Enable heavy starting solutions
--
Low power loss
• Reduces power consumption and energy costs
(up to 98% less power is used than for thermal
overload relays).
--
(only 3RB21)
• Minimizes temperature rise of the contactor and
controlgear cabinet – in some cases this may
eliminate the need for controlgear cabinet cooling.
• Direct mounting to contactor saves space, even
for high motor currents (i.e. no heat decoupling is
required).
1) Exception: Up to size S3, only stand-alone installation is possible.
2) Alternatively available for screw terminal.
3/4
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
General data
Features
Benefits
3RU11
3RB20/3RB21
3RB22/3RB23
Other features
Internal power supply
• Eliminates the need for an external power supply
Variable adjustment of the trip
classes
• Reduces the number of variants
Overload warning
• Indicates imminent tripping of the relay directly on
the device due to overload, phase unbalance or
phase failure
1)
--
-(only 3RB21)
• Minimizes the configuring outlay and costs
(The required trip class can be adjusted • Minimizes storage overhead, storage costs, and
by means of a rotary knob depending
tied-up capital
on the current starting condition.)
--
--
--
--
• Allows the imminent tripping of the relay to be
signaled
• Allows measures to be taken in time in the event
of continuous inverse-time delayed overloads
• Eliminates the need for an additional device
• Saves space in the controlgear cabinet
• Reduces wiring overhead and costs
Analog output
• Allows the output of an analog output signal for
actuating moving-coil instruments, feeding programmable logic controllers or transfer to bus
systems
• Eliminates the need for an additional measuring
transformer and signal converter
• Saves space in the controlgear cabinet
• Reduces wiring overhead and costs
1) The SIRIUS 3RU11 thermal overload relays use a bimetal strip principle.
Siemens Industry, Inc.
Industrial Controls Catalog
3/5
Overload Relays
SIRIUS
General data
Overload
Relays
Type
Current
measurement
Type
Current
range
A
Contactors (type, size)
3RT10 1 3RT10 2 3RT10 3
3RT10 4
3RT10 5
3RT10 6
3RT10 7 3TF68/69
S00
S0
S2
S3
S6
S10
S12
3/5/7
HP
5/7.5/15
HP
20/25/30/40 50/60/70
HP
HP
Size 14
100/125/150 150/200/250 300/400 500/700
HP
HP
HP
HP
3RU11 thermal overload relays
3RU11 1
Integrated 0.11 … 12
3RU11 2
1.8 … 25
3RU11 3
5.5 … 50
3RU11 4
18 … 100
3RB20/3RB211) solid-state overload relays
3RB2. 1
Integrated 0.1 … 12
3RB2. 2
0.1 … 25
3RB2. 3
6 … 50
3RB2. 4
12.5 … 100
3RB2. 5
50 ... 200
3RB2. 6
55 ... 630
3RB22/3RB231) solid-state overload relays
3RB22/3RB23 + 3RB29 0
0.3 … 25
3RB29 0
10 ... 100
3RB29 5
20 … 200
3RB29 6
63 ... 630
3RB29 0 + 630 ... 820
3UF18
1) When using the overload relays with trip class ≥ CLASS 20, see Technical
Specifications, Short-Circuit Protection with Fuses for Motor Feeders, and
the configuring aid "Configuring SIRIUS Fuseless Load Feeders".
3/6
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Description
The 3RU11 thermal overload relays up to 100 A are designed for
current-dependent protection of
applications with normal start-up
conditions (see "Trip classes")
against impermissibly high rises
in temperature as a result of
overload or phase failure (see
"Phase failure protection"). An
overload or phase failure causes
the motor current to rise above
the set rated motor current (see
"Setting"). This current rise heats
up the bimetal strips within the
relay via heating elements
which, in turn, operate the auxiliary contacts via a tripping
mechanism due to their deflection (see "Auxiliary contacts").
These switch the load off via a
contactor. The switch-off time is
dependent on the ratio of tripping current to operational current Ie and is stored in the form of
a tripping characteristic with
long-term stability (see "Tripping
characteristics"). The "Tripped"
state is signalled by means of a
switching position indicator (see
"Indication of status").
Resetting takes place manually
or automatically (see "Manual
and automatic resetting") after a
recovery time has elapsed (see
"Recovery time").
The 3RU11 thermal overload relays are electrically and mechanically optimised to the 3RT1
contactors such that, in addition
to individual mounting, they can
also be directly mounted onto
the contactors to save space
(see "Design and mounting").
The main and auxiliary circuits
can be connected in various
ways (see "Connection"), including the use of Cage Clamp terminals. When the overload relay
has been connected, it can be
tested for correct functioning using a TEST slide (see "TEST
function"). In addition to the
TEST function, the 3RU11 thermal overload relay is equipped
with a STOP function (see "STOP
function").
For a wide variety of application
possibilities for the 3RU11 thermal overload relay, please refer
to the sections "Application",
"Ambient conditions", “Overload
relays in WYE-delta combinations" and "Operation with frequency converters".
Siemens Industry, Inc.
Industrial Controls Catalog
3RU11 overload relay
Equipment designation label
Manual/automatic RESET selector switch
STOP button
Complete order number on the front of the
device
Switching position indication and TEST
function
Transparent cover, sealable
(secures adjuster knob for rated motor current,
TEST function and Manual/Automatic RESET
setting)
Adjuster knob for rated motor current
Repeat coil terminal
(for mounting onto contactors)
Auxiliary switch repeat terminal
(for mounting onto contactors)
The 3RU11 thermal overload relays can protect your loads from
overload and phase failure. You
must implement short-circuit
protection (see "Short-circuit
protection") by means of a fuse
or circuit-breaker.
The 3RU11 thermal overload relays are environmentally friendly
(see "Environmental considerations") and comply with all the
main international standards
and approvals (see "Specifications" and "Increased safety type
of protection EEx").
The accessories for the 3RU11
thermal overload relays have
been designed on the principle
that all requirements are covered by a small number of variants.
Application
The 3RU11 thermal overload relays are designed for the protection of three-phase and singlephase AC and DC motors.
If single-phase AC or DC loads
are to be protected using 3RU11
thermal overload relays, all three
bimetal strips should be heated.
Therefore all main circuits of the
relay must be connected in series.
Overload relays in WYE-delta
combinations
When overload relays are used
in WYE-delta combinations, it is
important to note that only 1/√3
of the motor current flows
through the mains contactor. An
overload relay mounted on the
main contactor must be set to
0.58 times the motor current.
A second overload relay must be
mounted on the star contactor if
your load is also to be optimally
protected in WYE operation. The
WYE current is 1/3 of the rated
motor current. The relevant relay
must be set to this current.
Control circuit
An additional power supply is
not required for operation of the
3RU11 thermal overload relays.
Ambient conditions
The 3RU11 thermal overload relays are temperature compensating according to IEC 60 9474-1/DIN VDE 0660 Part 102 in
the temperature range –20 °C to
+60 °C. For temperatures from
+60 °C to +80 °C, the upper setting value of the setting range
must be reduced by a specific
factor as given in the table below.
Ambient
temperature
in °C
Reduction factor
for the upper setting value
+60
1.0
+65
0.94
+70
0.87
+75
0.81
+80
0.73
Trip classes
The 3RU11 thermal overload relay is available for normal startup conditions in CLASS 10. For
further details about trip classes,
see "Tripping characteristics".
Tripping characteristics
The tripping characteristics
show the relationship between
the tripping time and the tripping
current as a multiple of the operational current Ie and are specified for symmetrical three-pole
and two-pole loading from cold.
The smallest current at which
tripping occurs is called the limiting tripping current. In accordance with IEC 60 947-4-1/
DIN VDE 0660 Part 102, this
must lie within certain specified
limits. The limits of the limiting
tripping current lie, in the case of
the 3RU11 thermal overload relay for symmetrical three-pole
loading between 105 % and
120 % of the operational current.
Starting from the limiting tripping
current, the tripping characteristic moves on to larger tripping
currents based on the characteristics of the so-called trip
classes (CLASS 10, CLASS 20
etc.). The trip classes describe
time-intervals within which the
overload relay must trip with 7.2
times the operational current Ie
for symmetrical three-pole loading from cold.
The tripping times are:
CLASS
Tripping times
10A
2 s to 10 s
10
4 s to 10 s
20
6 s to 20 s
30
9 s to 30 s
3/7
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
Description
TEST function
Correct functioning of the ready
3RU11 thermal overload relay can
be tested with the TEST slide. The
slide is operated to simulate tripping of the relay. During this simulation, the NC contact (95-96) is
opened and the NO contact (9798) is closed whereby the overload relay checks that the auxiliary
circuit is wired correctly. When the
3RU11 thermal overload relay is
set to Automatic RESET, an automatic reset takes place when the
TEST slide is released. The relay
must be reset using the RESET
button when it is set to Manual
RESET.
This is the schematic representation of a characteristic. The characteristics
of the individual 3RU11 thermal overload relays can be requested from
Technical Assistance at the e-mail address:
[email protected]
Tripping time
10 000
100
min
60
40
ANSB00288
5000
s
2000
1000
10
500
5
200
2
100
1
3-pole
loading
50
20
10
2-pole
loading
5
2
1
0,6 0,8 1
2
3
4
The tripping characteristic of a
three-pole 3RU11 thermal overload relay (see characteristic for
symmetrical three-pole loading
from cold) is valid when all three
bimetal strips are loaded with the
same current simultaneously. If,
however, only two bimetal strips
are heated as a result of phase
failure, these two strips would
have to provide the force necessary for operating the release
mechanism and, if no additional
measures were implemented,
they would require a longer tripping time or a higher current.
These increased current levels
over long periods usually result in
damage to the consumer. To prevent damage, the 3RU11 thermal
overload relay features phase failure sensitivity which, thanks to an
appropriate mechanical mechanism, results in accelerated tripping according to the characteristic for two-pole loading from cold.
In contrast to a load in the cold
state, a load at operating temperature has a lower heat reserve. This
fact affects the 3RU11 thermal
overload relay in that following an
extended period of loading at operational current Ie, the tripping
time reduces by about a quarter.
Phase failure protection
The 3RU11 thermal overload relays feature phase failure protection (see "Tripping characteristics") for the purpose of minimizing
the heating of the load during single-phase operation as a result of
phase failure.
3/8
6
8 10
15
20
30 40 A 60 80 x
Current
n
Setting
The 3RU11 thermal overload relay
is adjusted to the rated motor current using a rotary knob. The scale
of the rotary knob is calibrated in
Amperes.
Manual and automatic
resetting
It is possible to switch between
manual resetting and automatic
resetting by depressing and rotating the blue button (RESET button). When manual resetting is selected, a reset can be performed
directly on the device by pressing
the RESET button. Remote resetting can be implemented by using
the mechanical and electrical RESET modules from the range of accessories (see "Accessories").
When the blue button is set to Automatic RESET, the relay will be reset automatically.
A reset is not possible until the recovery time has elapsed (see "Recovery time").
Recovery time
After tripping due to an overload, it
takes a certain length of time for
the bimetal strips of the 3RU11
thermal overload relays to cool
down. The relay can only be reset
once it has cooled down. This time
(recovery time) is dependent on
the tripping characteristic and the
level of the tripping current.
After tripping due to overload, the
recovery time allows the load to
cool down.
STOP function
When the STOP button is pressed,
the NC contact is opened and the
series-connected contactor and
therefore the load is switched Off.
The load is reconnected via the
contactor when the STOP button
is released.
Status indication
The current status of the 3RU11
thermal overload relay is indicated
by the position of the marking on
the "TEST function/switching position indicator" slide. The marking
on the slide is on the left at the "O"
mark following a trip due to overload or phase failure and at the "I"
mark otherwise.
Auxiliary contacts
The 3RU11 thermal overload relay
is equipped with an NO contact
for the tripped signal and an NC
contact for switching off the contactor.
Connection
All the 3RU11 thermal overload
relays have screw terminals for
the main and auxiliary circuits.
Once the box terminals have
been removed from the main
conductor connections of the
overload relays of size S3, it is
possible to connect busbars.
Alternatively the devices are available with Cage Clamp terminals. In
these devices, the auxiliary conductor connections and, in the
case of size S00, the main conductor connections are Cage
Clamp terminals. For details of the
various connection possibilities,
see the "Technical data" and "Selection and ordering data".
Design and mounting
The 3RU11 thermal overload relays are suitable for direct mounting on the 3RT1 contactors. They
can also be mounted as single
units if the appropriate adapters
are used. For details of the mounting possibilities, see the
"Selection and ordering data" and
the "Technical data".
Operation with frequency
converters
The 3RU11 thermal overload relays are suitable for operation with
frequency converters. Depending
on the frequency of the converter,
a current higher than the motor
current may have to be set due to
the occurrence of eddy currents
and skin effects.
Environmental considerations
The devices are manufactured
taking environmental considerations into account and comprise
environmentally-friendly and recyclable materials.
Specifications
The 3RU11 thermal overload relays comply with the requirements
of:
• IEC 60 947-1/
DIN VDE 0660 Part 100
• IEC 60 947-4-1/
DIN VDE 0660 Part 102
• IEC 60 947-5-1/
DIN VDE 0660 Part 200
• IEC 60801-2, -3, -4, -5 and
• UL 508/CSA C 22.2.
The 3RU11 thermal overload relays are also safe from touch according to DIN VDE 0106 Part 100
and climate-proof to IEC 721.
Degree of protection
"Increased safety" EEx
The 3RU11 thermal overload relay
meets the requirements for overload protection of motors of the
"Increased safety" type of protection EEx e IEC 50 019/
DIN VDE 0165, DIN VDE 0170,
DIN VDE 171.
KEMA test certificate number
Ex-97.Y.3235,
DMT 98 ATEX G001,
EN 50 019: 1977 + A1 ... A5,
Increased Safety "e": Appendix A,
Guideline for temperature monitoring of squirrel cage motors during operation.
Accessories
For the 3RU11 thermal overload
relay, there are:
• one adapter for each of the
four overload relay sizes S00 to
S3 for individual mounting
• one electrical remote RESET
module for all sizes in three different voltage variants
• one mechanical remote RESET
module for all sizes
• one cable release for all sizes
for resetting inaccessible devices
• terminal covers
The accessories can also be used
for the 3RB20 overload relay.
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Selection and ordering data
3RU11 thermal overload relays with screw-type terminals
for mounting onto contactor 1), CLASS 10
• STOP button
Features and technical characteristics
• Phase failure sensitivity
• Auxiliary contacts: 1 NO + 1 NC
• Integrated, sealable cover
• Manual/automatic RESET
• CLASS 10
• Switching position indication
• TEST function
For 3RT1
contactor
Setting range
for mounting onto
contactor 1)
Order No.
Weight
approx
List
Price $
Size
A
kg
S00
(3RT101)
0.11 – 0.16
0.14 – 0.2
0.18 – 0.25
0.22 – 0.32
3RU11 16-0AB0
3RU11 16-0BB0
3RU11 16-0CB0
3RU11 16-0DB0
0.15
0.28 – 0.4
0.35 – 0.5
0.45 – 0.63
0.55 – 0.8
3RU11 16-0EB0
3RU11 16-0FB0
3RU11 16-0GB0
3RU11 16-0HB0
0.15
0.7 – 1
0.9 – 1.25
1.1 – 1.6
1.4 – 2
3RU11 16-0JB0
3RU11 16-0KB0
3RU11 16-1AB0
3RU11 16-1BB0
0.15
1.8 – 2.5
2.2 – 3.2
2.8 – 4
3,5 – 5
3RU11 16-1CB0
3RU11 16-1DB0
3RU11 16-1EB0
3RU11 16-1FB0
0.15
4.5 – 6.3
5.5 – 8
7 – 10
9 – 12
3RU11 16-1GB0
3RU11 16-1HB0
3RU11 16-1JB0
3RU11 16-1KB0
0.15
1.8 – 2.5
2.2 – 3.2
2.8 – 4
3.5 – 5
3RU11 26-1CB0
3RU11 26-1DB0
3RU11 26-1EB0
3RU11 26-1FB0
0.19
4.5 – 6.3
5.5 – 8
7 – 10
9 – 12.5
3RU11 26-1GB0
3RU11 26-1HB0
3RU11 26-1JB0
3RU11 26-1KB0
0.19
11 – 16
14 – 20
17 – 22
20 – 25
3RU11 26-4AB0
3RU11 26-4BB0
3RU11 26-4CB0
3RU11 26-4DB0
0.19
5.5 – 8
7 – 10
9 – 12.5
3RU11 36-1HB0
3RU11 36-1JB0
3RU11 36-1KB0
0.32
11 – 16
14 – 20
18 – 25
22 – 32
3RU11 36-4AB0
3RU11 36-4BB0
3RU11 36-4DB0
3RU11 36-4EB0
0.32
28 – 40
36 – 45
40 – 50
3RU11 36-4FB0
3RU11 36-4GB0
3RU11 36-4HB0
0.32
18 – 25
22 – 32
3RU11 46-4DB0
3RU11 46-4EB0
0.55
28 – 40
36 – 50
45 – 63
57 – 75
3RU11 46-4FB0
3RU11 46-4HB0
3RU11 46-4JB0
3RU11 46-4KB0
0.55
70 – 90
80 – 1002)
3RU11 46-4LB0
3RU11 46-4MB0
0.55
Size S00
3RU11 16-..B0
Size S0
3RU11 26-..B0
S0
(3RT102)
Size S2
3RU11 36-..B0
S2
(3RT103)
Size S3
3RU11 46-..B0
S3
(3RT104)
1) The 3RU11 overload relays can also be panel mounted using the
appropriate adapters (see Accessories).
2) Overload relay > 100 A, see 3RB2.
Siemens Industry, Inc.
Industrial Controls Catalog
For accessories, see page 3/11.
For description, see page 3/8.
For technical data, see pages 3/12-3/15.
For circuit diagrams, see page 3/16.
For dimension drawings, see page 3/17.
Product Category: IEC
3/9
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
CAGE
CLAM
P
Selection and ordering data
3RU11 thermal overload relays with Cage Clamp terminals
for mounting onto contactor 1) or installation as a single unit, CLASS 10
• STOP button
Features and technical characteristics
• Phase failure sensitivity
• Auxiliary contacts: 1 NO + 1 NC
• Integrated, sealable cover
• Manual/automatic RESET
• CLASS 10
• Switching position indication
• TEST function
for 3RT1
contactor
for mounting onto contactor
(S0 - S3) 1) or installation as a
single unit 2)
Setting range
Order No.
Size 3)
A
Weight
approx
List
Price $
kg
Size S00 for separate installation 4)
3RU11 16-..C1
S00
0.11 – 0.16
0.14 – 0.2
0.18 – 0.25
0.22 – 0.32
3RU11 16-0AC1
3RU11 16-0BC1
3RU11 16-0CC1
3RU11 16-0DC1
0.19
0.28 – 0.4
0.35 – 0.5
0.45 – 0.63
0.55 – 0.8
3RU11 16-0EC1
3RU11 16-0FC1
3RU11 16-0GC1
3RU11 16-0HC1
0.19
0.7 – 1
0.9 – 1.25
1.1 – 1.6
1.4 – 2
3RU11 16-0JC1
3RU11 16-0KC1
3RU11 16-1AC1
3RU11 16-1BC1
0.19
1.8 – 2.5
2.2 – 3.2
2.8 – 4
3.5 – 5
3RU11 16-1CC1
3RU11 16-1DC1
3RU11 16-1EC1
3RU11 16-1FC1
0.19
4.5 – 6.3
5.5 – 8
7 – 10
9 – 12
3RU11 16-1GC1
3RU11 16-1HC1
3RU11 16-1JC1
3RU11 16-1KC1
0.19
1.8 – 2.5
2.2 – 3.2
2.8 – 4
3.5 – 5
3RU11 26-1CD0
3RU11 26-1DD0
3RU11 26-1ED0
3RU11 26-1FD0
0.19
4.5 – 6.3
5.5 – 8
7 – 10
9 – 12.5
3RU11 26-1GD0
3RU11 26-1HD0
3RU11 26-1JD0
3RU11 26-1KD0
0.19
11 – 16
14 – 20
17 – 22
20 – 25
3RU11 26-4AD0
3RU11 26-4BD0
3RU11 26-4CD0
3RU11 26-4DD0
0.19
5.5 – 8
7 – 10
9 – 12.5
11 – 16
3RU11 36-1HD0
3RU11 36-1JD0
3RU11 36-1KD0
3RU11 36-4AD0
0.32
14 – 20
18 – 25
22 – 32
3RU11 36-4BD0
3RU11 36-4DD0
3RU11 36-4ED0
0.32
28 – 40
36 – 45
40 – 50
3RU11 36-4FD0
3RU11 36-4GD0
3RU11 36-4HD0
0.32
1 8 – 25
22 – 32
28 – 40
36 – 50
3RU11 46-4DD0
3RU11 46-4ED0
3RU11 46-4FD0
3RU11 46-4HD0
0.55
45 – 63
57 – 75
70 – 90
80 – 100
3RU11 46-4JD0
3RU11 46-4KD0
3RU11 46-4LD0
3RU11 46-4MD0
0.55
Size S0 for mounting onto contactor 1)5)
3RU11 16-..D0
S0
Size S2 for mounting onto contactor 1)5)
3RU11 36-..D0
S2
Size S3 for mounting onto contactor 1)5)
3RU11 46-..D0
S3
1) The 3RU11 overload relays can also be panel mounted using the
appropriate adapters (see Accessories).
2 Size S00 for panel mounting onto 35 mm standard mounting rail.
3) Note the maximum rated operational current of the devices.
4) Main and auxiliary conductor terminals are available with Cage Clamps.
5) Auxiliary conductor terminals have Cage Clamps and main conductor
terminals are screw-type.
3/10
For accessories, see page 3/11.
For description, see page 3/8.
For technical data, see pages 3/12-3/15.
For circuit diagrams, see page 3/16.
For dimension drawings, see page 3/18.
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Accessories
Design
for type
Order No.
Size
List
Price $
Weight
approx
Pack
kg
Adapter for installing as a single unit
3RU19 .6-3AA01
For separate mounting of the overload relay;
panel mount or snapped onto
35 mm standard mounting rail,
size S3 also for 75 mm standard mounting rail
S00
S0
S2
S3
3RU19 16-3AA01
3RU19 26-3AA01
3RU19 36-3AA01
3RU19 46-3AA01
0.060
0.080
0.180
0.280
3RU19 00-1A
3SB3000-0EA111)
3SX1 3351)
3SBES-RESET1)
0.038
0.020
0.004
3RU19 00-1B
3RU19 00-1C
0.063
0.073
3RU19 00-2AB71
3RU19 00-2AF71
3RU19 00-2AM71
0.066
0.066
0.066
Mechanical RESET
3RU19 00-1A
Resetting plunger, holder and former overload reset adaptor S00 to S3
RESET pushbutton IP 65 ∅ 22 mm, 12 mm hub
R E S E T ex te n si o n
Complete mechanical reset assembly
B
A
with pushbutton,
and reset extension
Cable release with holder for RESET
3RU19 00-1.
For drilled hole ∅ 6.5 mm
in the switchboard;
max. switchboard thickness 8 mm
Length 400 mm
L e n g t h 6 00 m m
S00 to S3
Module for remote RESET, electrical
3RU19 00-2A.71
Operating range 0.85 to 1.1 × Us
Power consumption AC 80 VA, DC 70 W
ON period 0.2 s to 4 s
AC/DC 24 V to 30 V
AC/DC 110 V to 127 V
AC/DC 220 V to 250 V
S00 to S3
Terminal cover
Cover for cable lug
and bar connection
Length 55 mm
S3
3RT19 46-4EA1
0.040
Cover for box terminals
Length 20.6 mm
Length 20.8 mm
S2
S3
3RT19 36-4EA2
3RT19 46-4EA2
0.020
0.025
8WA2 8032)
0.03
Tool for opening Cage Clamp connections
8WA2 803
Suitable up to a
max. conductor cross-section of 2.5 mm2
• Length: approx. 175 mm;
3.5 × 0.5 mm (green)
For all
SIRIUS
devices
with Cage
Clamps
1) Product Category: PILO.
2) Product Category: TBLK.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
3/11
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
Technical data
Type
3RU11 16
3RU11 26
3RU11 36
3RU11 46
Size
S00
S0
S2
S3
Width
45 mm
45 mm
55 mm
70 mm
General data
overload or phase failure
Release on
Trip class
acc. to IEC 60 947-4-1
CLASS 10
Phase failure sensitivity
Yes
Overload warning
No
Resetting and recovery
Reset possibilities after tripping
Recovery time
on automatic RESET
on manual RESET
on remote RESET
min
min
min
Features
Indication of status on the device
TEST function
RESET button
STOP button
Yes, using the slide "TEST function/ON-OFF indicator"
Yes
Yes
Yes
For reliable operation of motors EU prototype test
of the "Increased safety" type of certification number
protection
acc. to guideline 94/9/EG
Ambient temperatures
Storage/transport
Operation
Temperature compensation
Permissible rated current at
Manual, remote and automatic RESET 1)
depending on the level of tripping current and the tripping characteristic
depending on the level of tripping current and the tripping characteristic
depending on the level of tripping current and the tripping characteristic
KEMA test certificate No. EX-97.Y.3235
DMT 98 ATEX G001
°C
°C
°C
Internal cabinet temperature of 60 °C %
Internal cabinet temperature of 70 °C %
Repeat terminals
Repeat coil terminal
Auxiliary switch repeat terminal
–55 to +80
–20 to +70
up to 60
100 (over +60 °C, the current must be reduced)
87
Yes
Yes
Not required
Not required
IP 20 2)
Degree of protection
acc. to IEC 60529/DIN VDE 0470 Part 1
IP 20
Shock-hazard protection
acc. to VDE 0106 Part 100
safe from touch
Shock resistance (sine)
acc. to IEC 68 Part 2-27
g/ms
8/10
acc. to IEC 61 000-4-4:
(corresponds to degree of severity 3)
acc. to IEC 61 000-4-5:
(corresponds to degree of severity 3)
acc. to IEC 61 000-4-2:
(corresponds to degree of severity 3)
acc. to IEC 61 000-4-3:
(corresponds to degree of severity 3)
kV
EMC is not relevant for thermal overload relays
kV
EMC is not relevant for thermal overload relays
kV
EMC is not relevant for thermal overload relays
V/m
EMC is not relevant for thermal overload relays
EMC
• Conducted interference
decoupling, burst
• Conducted interference
decoupling, surge
• Electrostatic discharge
• Field interference decoupling
EMC is not relevant for thermal overload relays
Emitted interference
Resistance to extreme climates (humidity)
%
Site altitude
100
see dimensional drawings
Dimensions
m
Installation angle
up to 2000 above sea level; in excess please enquire
The permissible installation angles for mounting onto contactors and individual mounting are shown in the diagrams. For mounting in the shaded
area, adjustment compensation of 10 % is necessary.
Individual mounting
Contactor + overload relay
Type of installation/mounting
1) Remote RESET in combination with the appropriate accessories.
2) Terminal compartment: IP 00 degree of protection.
3) 3RU11 16 overload relays with Cage Clamp terminals can only be mounted
individually.
3/12
Direct mounting 3) Direct mounting / individual mounting with adapter 4)
/ individual
mounting with
adapter 4)
4) For screwing and snapping onto 35 mm standard mounting rails;
size S3 also onto 75 mm standard mounting rails. For further details about
adapters, see "Technical data/Adapters for individual mounting"
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Technical data
Type
3RU11 16
3RU11 26
3RU11 36
3RU11 46
Size
S00
S0
S2
S3
Width
45 mm
45 mm
55 mm
70 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3)
V
690
1000
Rated impulse withstand voltage Uimp
kV
6
8
Rated operational voltage Ue
V
690
1000
Type of current
DC
AC
Yes
Yes, frequency range up to 400 Hz
Operational current
Power loss per device (max.)
Short-circuit protection
A
0.11– 0.16
to 9 – 12
1.8 – 2.5
to 20 – 25
5.5 – 8
to 40 – 50
18 – 25
to 80 – 100
W
3.9 to 6.6
3.9 to 6
6 to 9
10 to 16.5
With fuse without contactor
See selection and ordering data
With fuse and contactor
See technical data (short-circuit protection with fuses /
circuit-breaker for motor feeders)
Safe isolation between main acc. to IEC 60 947-1,
and auxiliary conducting path DIN VDE 0106 Part 101
V
500
690
Screw
connection/
Cage Clamp
connection1)
Screw
connection
Connection of the main circuit
Type of connection
Screw
connection with
box terminal
Screw connection with box terminal 2)/ bar
connection
Screw terminals
• Terminal screw
Pozidrive Size 2
• Tightening torque
• Conductor cross-section
(min./max.), 1 or 2 wires
Hexagon socket
screw 4 mm
Nm
0.8 to 1.2
2 to 2.5
3 to 4.5
4 to 6
Solid
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5),
max. 2 ×
(1 to 4)
2 × (1 to 2.5),
2 × (2.5 to 6),
max. 2 ×
(2.5 to 10)
2 × (0.75 to 16)
2 × (2.5 to 16)
Finely stranded without end sleeve
mm2
–
Finely stranded with end sleeve
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
2 × (1 to 2.5),
2 × (2.5 to 6)
2 × (0.75 to 16),
1 × (0.75 to 25)
2 × (2.5 to 35),
1 × (2.5 to 50)
Stranded
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
max. 2 ×
(1 to 4)
2 × (1 to 2.5),
2 × (2.5 to 6)
max. 2 ×
(2.5 to 10)
2 × (0.75 to 25),
1 × (0.75 to 35)
2 × (10 to 50),
1 × (10 to 70)
AWG conductor con., solid or stranded
AWG
2 × (18 to 14)
2 × (14 to 10)
2 × (18 to 3),
1 × (18 to 1)
2 × (10 to 1/0),
1 × (10 to 2/0)
Ribbon cable (No. × width × thickness)
mm
–
–
2 × (6 × 9 × 0.8)
2 × (6 × 9 × 0.8)
Bar connection
• Terminal screw
–
M 6 × 20
Nm
–
4 to 6
Finely stranded with cable lug
mm2
–
2 × 70
Stranded with cable lug
mm2
–
2 × 70
AWG conductor connections, solid or
stranded with cable lug
AWG
–
2/0
With connecting bars (max. width)
mm
–
12
• Tightening torque
• Conductor cross-section
(min./max.)
Auxiliary circuit
Main contacts: Number × (design)
1 × (1 NO + 1 NC)
Assignment of auxiliary contacts
1 NO for signal "Tripped due to overload";
1 NC for switching off the contactor
Rated insulation voltage Ui (pollution degree 3)
V
690
Rated impulse withstand voltage Uimp
kV
6
A
A
A
A
A
A
A
4
4
4
3
2
0.6
0.5
Switching capacity of auxiliary contacts
NC for AC
AC-14/AC-15
Rated operational current Ie at Ue:
• 24 V
• 120 V
• 125 V
• 230 V
• 400 V
• 600 V
• 690 V
1) For conductor cross-sections for Cage Clamp
terminals, see "Connection of the auxiliary
circuit.”
Siemens Industry, Inc.
Industrial Controls Catalog
2) The box terminal can be removed. After the
box terminal has been removed, bar connection and lug connection is possible.
3/13
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
Technical data
Type
3RU11 16
3RU11 26
3RU11 36
3RU11 46
Size
S00
S0
S2
S3
Width
45 mm
45 mm
55 mm
70 mm
NO for AC
AC-14/AC-15
Rated operational current Ie at Ue:
• 24 V
• 120 V
• 125 V
• 230 V
• 400 V
• 600 V
• 690 V
A
A
A
A
A
A
A
3
3
3
2
1
0.6
0.5
NC, NO for DC
DC-13
Rated operational current Ie at Ue:
• 24 V
• 60 V
• 110 V
• 125 V
• 220 V
A
A
A
A
A
1
1)
0.22
0.22
0.11
A
6
Conventional thermal current Ith
Contact reliability
Short-circuit protection
With fuse
(suitable for PLC; 17 V, 5 mA)
Utilization cat. gL/gG
fast
With miniature circuit-breaker (C characteristic)
Safe isolation between
auxiliary conducting paths
acc. to DIN VDE 0106 Part 101
Yes
A
A
6
10
A
62)
V
415
Connection of the auxiliary circuit
Type of connection
Screw terminal or Cage Clamp terminal
Connection characteristics
Screw terminals
Cage Clamp terminals
• Terminal screw
Pozidrive Size 2
–
Nm
0.8 to 1.2
–
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
2 × (0.25 to 2.5)
• Tightening torque
• Conductor cross-sections
(min./max.), 1 or 2 wires
Solid
2
Finely stranded without end sleeve
mm
–
2 × (0.25 to 2.5)
Finely stranded with end sleeve
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
2 × (0.25 to 1.5)
2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
–
Stranded
mm
AWG conductor connections,
solid or stranded
AWG 2 × (18 to 14)
2 × (24 to 14)
s, u and U ratings
Auxiliary circuit
Making/breaking capacity
B600, R300
Adapter for individual mounting
Type
3RU19 16-3AA01 3RU19 26-3AA01 3RU19 36-3AA01 3RU19 46-3AA01
For overload relay
3RU11 16
Fixing type
for panel mounting and snapping onto 35 mm standard mounting rails;
size S3 also onto 75 mm standard mounting rails.
3RU11 26
3RU11 36
3RU11 46
Connection of the main circuit
Screw terminals
Type of connection
Screw connection
with box terminal
Screw terminals
• Terminal screw
• Conductor cross-section
(min./max.), 1 or 2 wires
Pozidrive Size 2
mm2
1 × (0.5 to 2.5),
max. 1 × (to 4)
Finely stranded without end sleeve
mm2
–
Finely stranded with end sleeve
mm2
Stranded
m m2
AWG conductor connections,
solid or stranded
Ribbon cable
(No. × width × thickness)
Solid
Hexagon socket
screw 4 mm
1 × (1 to 6),
max. 1 × (to 10)
2 × (0.75 to 16)
2 × (2.5 to 16)
1 × (0.5 to 2.5)
1 × (1 to 6)
2 × (0.75 to 16)
1 × (0.75 to 25)
2 × (2.5 to 35)
1 × (2.5 to 50)
1 × (0.5 to 2.5),
max. 1 × (to 4)
1 × (1 to 6),
max. 1 × (to 10)
2 × (0.75 to 25),
1 × (0.75 to 35)
2 × (10 to 50),
1 × (10 to 70)
AWG 1 × (18 to 14)
1 × (14 to 10)
2 × (18 to 3),
1 × (18 to 1)
2 × (10 to 1/0),
2 × (10 to 2/0)
mm
–
2 × (6 × 9 × 0.8)
2 × (6 × 9 × 0.8)
–
1) On request.
2) Up to Ik ≤ 0.5 kA; ≤ 260 V.
3/14
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Technical data for export applications
Short-circuit protection with fuses/IEC circuit-breakers for motor feeders
With short-circuit currents up to 50 kA at AC 50/60 Hz 690 V
Permissible short-circuit protection for motor starters comprising an overload relay and contactor, type of coordination 2 1)
Size S00
Setting range
3 kW 3RT10 15
Ie max = 7 A
(at AC 50 Hz 400 V)
4 kW 3RT10 16
Ie max = 9 A
(at AC 50 Hz 400 V)
5.5 kW 3RT10 17
Ie max = 12 A
(at AC 50 Hz 400 V)
A
gL/gG
gL/gG
gL/gG
UL-listed
fuses
RK5
Circuit-breaker for
starter protection at
Iq = 50 kA / AC 400 V
aM
BS88T
aM
BS88T
aM
B S88T
A
0.11 to 0.16
0.5
–
–
0.5
–
–
0.5
–
–
1
–
0.14 to 0.2
1
–
–
1
–
–
1
–
–
1
3RV13 21-0BC10
0.18 to 0.25
1
–
–
1
–
–
1
–
–
1
3RV13 21-0CC10
0.22 to 0.32
1.6
–
2
1.6
–
2
1.6
–
2
1
3RV13 21-0DC10
0.28 to 0.4
2
–
2
2
–
2
2
–
2
1.6
3RV13 21-0EC10
0.35 to 0.5
2
–
2
2
–
2
2
–
2
2
3RV13 21-0FC10
0.45 to 0.63
2
–
4
2
–
4
2
–
4
2.5
3RV13 21-0GC10
0.55 to 0.8
4
–
4
4
–
4
4
–
4
3
3RV13 21-0HC10
0.7 to 1
4
–
6
4
–
6
4
–
6
4
3RV13 21-0JC10
0.9 to 1.25
4
–
6
4
–
6
4
–
6
5
3RV13 21-0KC10
1.1 to 1.6
6
–
10
6
–
10
6
–
10
6
3RV13 21-1AC10
1.4 to 2
6
–
10
6
–
10
6
–
10
8
3RV13 21-1BC10
1.8 to 2.5
10
–
10
10
–
10
10
–
10
10
–
2.2 to 3.2
10
–
16
10
–
16
10
–
16
12
–
2.8 to 4
16
–
16
16
–
16
16
–
16
16
–
3.5 to 5
20
6
20
20
6
20
20
6
20
20
–
4.5 to 6.3
20
6
20
20
6
20
20
6
20
25
–
5.5 to 8
20
10
20
20
10
20
20
10
20
30
–
7 to 10
–
–
–
20
16
20
20
16
20
40
–
9 to 12
–
–
–
–
–
–
20
16
25
45
–
Size S0
Setting range
5.5 kW 3RT10 24
Ie max = 12 A
(at AC 50 Hz 400 V)
7.5 kW 3RT10 25
Ie max = 17 A
(at AC 50 Hz 400 V)
11 kW 3RT10 26
Ie max = 25 A
(at AC 50 Hz 400 V)
UL-listed
fuses RK5
Circuit-breaker for
starter protection at
Iq = 50 kA / AC 400 V
A
gL/gG
aM
BS88T
gL/gG
aM
BS88T
gL/gG
aM
B S88T
1.8 to 2.5
10
–
10
10
–
10
10
–
10
10
3RV13 21-1CC10
2.2 to 3.2
10
–
16
10
–
16
10
–
16
12
3RV13 21-1DC10
2.8 to 4
16
–
16
16
–
16
16
–
16
16
3RV13 21-1EC10
3.5 to 5
20
6
20
20
6
20
20
6
20
20
3RV13 21-1FC10
4.5 to 6.3
20
6
25
20
6
25
20
6
25
25
3RV13 21-1GC10
5.5 to 8
25
10
25/322)
25
10
25/322)
25
10
32
30
3RV13 21-1HC10
7 to 10
25
16
25/322)
25
16
25/322)
32
16
35
40
3RV13 21-1JC10
9 to 12.5
25
20
25/322)
25
20
25/322)
35
20
35
45
3RV13 21-1KC10
11 to 16
25
20
25/322)
25
20
25/322)
35
20
35
60
3RV13 21-4AC10
14 to 20
–
–
–
25
20
25/322)
35
20
35
80
3RV13 21-4BC10
17 to 22
–
–
–
–
–
–
35
20
35
80
3RV13 21-4CC10
20 to 25
–
–
–
–
–
–
35
20
35
100
A
–
1
Type of coordination 1 ) see short-circuit protection of contactors without overload relay under “Contactors and contactor combinations”.
1) Type of coordination and short-circuit protection devices according to IEC 60 947-4-1/DIN VDE 660 Part 102:
Type of coordination 1: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These do not have to be suitable for subsequent operation (without repair and replacement of parts).
Type of coordination 2: In the event of a short-circuit, persons and equipment must not be in danger from the contactor or starter.
These must be suitable for subsequent operation. There is a risk of welding of the contacts.
2) At max. 415 V.
Siemens Industry, Inc.
Industrial Controls Catalog
3/15
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
Circuit diagrams
Protection of DC motors
1-pole
2-pole
3RU11 16 overload relay
3RU11 26 to 3RU11 46 overload relays
3/16
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
Thermal Overload Relays
3RU11 up to 100 A,
CLASS 10
Dimension drawings
Screw connection
Lateral clearance to grounded components: at least 6 mm.
3RU11 16-..B0
Size S00 with accessories
1) Mechanical RESET
2) Cable release (400 mm or 600 mm long,
mounting on the front or laterally on the holder)
3) Holder for RESET
3RU11 26-..B.
Size S0
with adapter for installation as a single unit
3RU11 16-..B.
Size S00
with adapter for installation as a single unit with accessories
1) Module for remote RESET
3RU11 36-..B.
Size S2
with adapter for installation as a single unit
3RU11 46-..B.
Size S3
with adapter for installation as a single unit
1) For mounting on 35 mm standard mounting rail
(15 mm deep) acc. to EN 50 022
or 75 mm standard mounting rail acc. to EN 50023
Dimension drawings “Contactor with built-on overload relay” see
contactors and contactor combinations.
Siemens Industry, Inc.
Industrial Controls Catalog
3/17
Overload Relays
Thermal Overload Relays
SIRIUS
3RU11 up to 100 A,
CLASS 10
Dimension drawings
Cage Clamp terminals
Lateral clearance to grounded components: at least 6 mm.
3RU11 16 -..B0
Size S00 with accessories
1) Mechanical RESET
2) Cable release (400 mm or 600 mm long,
mounting on the front or laterally on the holder)
3) Holder for RESET
1) Module for remote RESET
3RU11 26-..D.
Size S0
3RU11 36-..D.
Size S2
3RU11 46-..D.
Size S3
1) For mounting on 35 mm standard mounting rail
(15 mm deep) acc. to EN 50 022
or 75 mm standard mounting rail acc. to EN 50 023
Dimension drawings “Contactor with built-on overload relay” see contactors
and contactor combinations.
3/18
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Overview
The "tripped" status is signaled by means of a switch position
indicator (see Function). Resetting takes place either manually
or automatically after the recovery time has elapsed
(see Function).
The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and reusable
materials. They comply with important worldwide standards and
approvals.
Application
Industries
The 3RB20/3RB21 solid-state overload relays are suitable for
customers from all industries who want to provide optimum
inverse-time delayed protection of their electrical loads
(e.g. motors) under normal and heavy starting conditions
(CLASS 5 to CLASS 30), minimize project completion times,
inventories and power consumption, and optimize plant
availability and maintenance management.
(1)Connection for mounting onto contactors:
Optimally adapted in electrical, mechanical and design terms to the
contactors and soft starters, these connecting pins can be used for
direct mounting of the overload relays. Stand-alone installation is
possible as an alternative (in some cases in conjunction with a
stand-alone installation module).
(2)Selector switch for manual/automatic RESET and RESET button:
With the slide switch you can choose between manual and automatic
RESET. A device set to manual RESET can be reset locally by pressing
the RESET button. On the 3RB21 a solid-state remote RESET is
integrated into the unit.
(3)Switch position indicator and TEST function of the wiring:
Indicates a trip and enables the wiring test.
(4)Solid-state test:
Enables a test of all important device components and functions.
(5)Motor current setting:
Setting the device to the rated motor current is easy with the large
rotary knob.
(6)Trip class setting/internal ground-fault detection (3RB21 only):
Using the rotary switch you can set the required trip class and activate
the internal ground-fault detection dependent on the starting
conditions.
(7)Connecting terminals (removable terminal block for auxiliary circuits):
The generously sized terminals permit connection of two conductors
with different cross-sections for the main and auxiliary circuits. The
auxiliary circuit can be connected with screw-type terminals or with
spring-loaded terminals.
The 3RB20 and 3RB21 solid-state overload relays up to 630 A
with internal power supply have been designed for inverse-time
delayed protection of loads with normal and heavy starting
(see Function) against excessive temperature rise due to overload, phase unbalance or phase failure. An overload, phase unbalance or phase failure result in an increase of the motor current
beyond the set motor rated current. This current rise is detected
by the current transformers integrated into the devices and evaluated by corresponding solid-state circuits which then output a
pulse to the auxiliary contacts. The auxiliary contacts then switch
off the load by means of the contactors control circuit. The break
time depends on the ratio between the tripping current and set
current Ie and is stored in the form of a long-term stable tripping
characteristic (see Characteristic Curves).
In addition to inverse-time delayed protection of loads against
excessive temperature rise due to overload, phase unbalance
and phase failure, the 3RB21 solid-state overload relays also
allow internal ground-fault detection (not possible in conjunction
with wye-delta assemblies). This provides protection of loads
against high-resistance short-circuits due to damage to the
insulation material, moisture, condensed water etc.
Siemens Industry, Inc.
Industrial Controls Catalog
Application
The 3RB20/3RB21 solid-state overload relays have been
designed for the protection of three-phase motors in sinusoidal
50/60 Hz voltage networks. The relays are not suitable for the
protection of single-phase AC or DC loads.
The 3RU11 thermal overload relay or the 3RB22/3RB23 solidstate overload relay can be used for single-phase AC loads.
For DC loads the 3RU11 thermal overload relays are available.
Ambient conditions
The devices are insensitive to external influences such as
shocks, corrosive environments, ageing and temperature
changes.
For the temperature range from –25 C to +60 °C, the
3RB20/3RB21 solid-state overload relays compensate the
temperature according to IEC 60947-4-1.
The 3RB20/3RB21 solid-state overload relays are suitable for the
overload protection of explosion-proof motors with "increased
safety" type of protection EEx e according to ATEX guideline
94/9/EC. The relays meet the requirements of EN 60079-7 (Electrical apparatus for potentially explosive atmospheres –
Increased safety "e").
The basic safety and health requirements of ATEX guideline
94/9/EG are fulfilled by compliance with
• EN 60947-1
• EN 60947-4-1
• EN 60947-5-1
• EN 60079-14
EU type test certificate for Group II, Category (2) G/D under
application. Number on request.
Accessories
The following accessories are available for the 3RB20/3RB21
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as single units without
a terminal bracket)
• One mechanical remote RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminals for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
3/19
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
Design
Device concept
The 3RB20/3RB21 solid-state overload relays are compact
devices, i.e. current measurement (transformer) and the evaluation unit are integrated in a single enclosure.
Mounting options
The 3RB20/3RB21 solid-state overload relays are suitable for
direct and space-saving mounting onto 3RT1 contactors and
3RW30/3RW31 soft starters as well as for stand-alone installation. For more information on the mounting options, please
see Technical Specifications and Selection and Ordering Data.
Connection technique
Main circuit
All sizes of the 3RB20/3RB21 solid-state overload relays can be
connected with screw-type terminals. As an alternative for sizes
S3 to S10/S12, the main circuits can be connected via the Busbar. Sizes S2 to S6 of the 3RB20/3RB21 relays are also available
with a straight-through transformer. In this case, the cables of the
main circuit are routed directly through the feed-through openings of the relay to the contactor terminals.
Overload relays in contactor assemblies for
Wye-Delta starting
When overload relays are used in combination with contactor assemblies for Wye-Delta starting it must be noted that only
0.58 times the motor current flows through the line contactor.
An overload relay mounted onto the line contactor must be set to
0.58 times the motor current.
When 3RB21 solid-state overload relays are used in combination
with contactor assemblies for Wye-Delta starting, the internal
ground-fault detection must not be activated.
Operation with frequency converter
The 3RB20/3RB21 solid-state overload relays are suitable for
frequencies of 50/60 Hz and the associated harmonics. This
permits the 3RB20/3RB21 overload relays to be used on the
incoming side of the frequency converter.
If motor protection is required on the outgoing side of the
frequency converter, the 3RN thermistor motor protection
devices or the 3RU11 thermal overload relays are available for
this purpose.
Auxiliary circuit
Connection of the auxiliary circuit (removable terminal block) is
possible with either screw terminals or spring-loaded terminals.
For more information on the connection options,
see Technical Specifications and Selection and Ordering Data.
3/20
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Function
Basic functions
The 3RB20/3RB21 solid-state overload relays are designed for:
• Inverse-time delayed protection of loads from overloading
• Inverse-time delayed protection of loads from phase
unbalance
• Inverse-time delayed protection of loads from phase failure
• Protection of loads from high-resistance short-circuits
(internal ground-fault detection only with 3RB21).
Recovery time
With the 3RB20/3RB21 solid-state overload relays the recovery
time after inverse-time delayed tripping is between 0.5 and 3
minutes depending on the preloading when automatic RESET
is set. These recovery times allow the load (e.g. motor) to
cool down.
If the button is set to manual RESET, the 3RB20/3RB21 devices
can be reset immediately after inverse-time delayed tripping.
After a ground fault trip the 3RB21 solid-state overload relays
(with ground-fault detection activated) can be reset immediately
without a recovery time regardless of the reset mode set.
Control circuit
TEST function
The 3RB20/3RB21 solid-state overload relays have an internal
power supply, i.e. no additional supply voltage is required.
With motor current flowing, the TEST button can be used to
check whether the relay is working correctly (device/solid-state
TEST). Current measurement, motor model and trip unit are
tested. If these components are OK, the device is tripped in
accordance with the table below. If there is an error, no tripping
takes place.
Short-circuit protection
Fuses or motor starter protectors must be used for short-circuit
protection. For assignments of the corresponding short-circuit
protection devices to the 3RB20/3RB21 solid-state overload relays with/without contactor see Technical Specifications and
Selection and Ordering Data.
Trip class
Required loading with the
Tripping within
rated current prior to pressing the test button
Trip classes
CLASS 5
2 min
8s
The 3RB20 solid-state overload relays are available for normal
starting conditions with trip CLASS 10 or for heavy starting conditions with trip CLASS 20 (fixed setting in each case).
CLASS 10
4 min
15 s
CLASS 20
8 min
30 s
CLASS 30
12 min
45 s
The 3RB21 solid-state overload relays are suitable for normal
and heavy starting. The required trip class (CLASS 5, 10, 20 or
30) can be adjusted by means of a rotary knob depending on the
current starting condition.
For details of the trip classes see Characteristic Curves.
Phase failure protection
The 3RB20/3RB21 solid-state overload relays are fitted with
phase failure protection (see Characteristic Curves) in order to
minimize temperature rise of the load during single-phase
operation.
Phase failure protection is not effective for loads with starconnection and a grounded neutral point or a neutral point which
is connected to a neutral conductor.
Setting
The 3RB20/3RB21 solid-state overload relays are set to the
motor rated current by means of a rotary knob. The scale of the
rotary knob is shown in amps.
With the 3RB21 solid-state overload relay it is also possible to
select the trip class (CLASS 5, 10, 20 or 30) using a second
rotary knob and to switch the internal ground-fault detection on
and off.
Manual and automatic reset
In the case of the 3RB20/3RB21 solid-state overload relays, a
slide switch can be used to choose between automatic and
manual resetting.
Note: The test button must be kept pressed throughout the test.
Testing of the auxiliary contacts and the control current wiring is
possible with the switch position indicator slide. Actuating the
slide simulates tripping of the relay. During this simulation the NC
contact (95-96) is opened and the NO contact (97-98) is closed.
This tests whether the auxiliary circuit has been correctly wired.
After a test trip the relay is reset by pressing the RESET button.
Self-monitoring
The 3RB20/3RB21 solid-state overload relays have a self-monitoring feature, i.e. the devices constantly monitor their own basic
functions and trip if an internal fault is detected.
Display of operating status
The respective operating status of the 3RB20/3RB21 solid-state
overload relays is displayed by means of the position of the
marking on the switch position indicator slide. After tripping due
to overload, phase failure, phase unbalance or ground fault
(ground fault detection possible only with 3RB21) the marking on
the slide is to the left on the "O" mark, otherwise it is on the "I"
mark.
Auxiliary contacts
The 3RB20/3RB21 solid-state overload relays are fitted with an
NO contact for the "tripped" signal, and an NC contact for
switching off the contactor.
If manual reset is set, a reset can be carried out directly on the
device after a trip by pressing the blue RESET button. Resetting
is possible in combination with the mechanical reset options
from the accessories range (see Accessories). As an alternative
to the mechanical RESET options, the 3RB21 solid-state overload relays are equipped with an electrical remote RESET which
may be utilized by applying a voltage of 24 V DC to the terminals
A3 and A4.
If the slide switch is set to automatic RESET, the relay is reset
automatically.
The time between tripping and resetting is determined by the
recovery time.
Siemens Industry, Inc.
Industrial Controls Catalog
3/21
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
Selection and ordering data
Conversion aid 3RB10 ––> 3RB20
Size
Old Order No.
Setting range
A
New Order No.
Setting range
A
3RB10 [email protected]
0.1 ... 0.4
3RB10 [email protected]
0.4 ... 1.6
3RB20 [email protected]
3RB20 [email protected]
0.1 ... 0.4
0.32 ... 1.25
3RB20 [email protected]
1 ... 4
3RB10 [email protected]
1.5 ... 6
3RB10 [email protected]
3RB10 [email protected]
3
3RB20 [email protected]
3 ... 12
S00
S0
S2
S3
S6
S10/S12
CLASS 10
CLASS 20
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
... 12
0.1 ... 0.4
0.4 ... 1.6
1.5 ... 6
3 ... 12
6 ... 25
6 ... 25
13 ... 50
13 ... 50
25 ... 100
50 ... 200
55 ... 250
200 ... 540
300 ... 630
Use size S00 + 3RB2913-0AA1 Panel Mount Kit
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3 ... 12
6 ... 25
6 ... 25
12.5 ... 50
12.5 ... 50
25 ... 100
3RB20 [email protected]
160 ... 630
1
2
50 ... 200
55 ... 250
1
2
Conversion aid 3RB10 ––> 3RB21
Size
Old Order No.
Setting range
A
New Order No.
Setting range
A
3RB10 [email protected]
0.1 ... 0.4
3RB10 [email protected]
0.4 ... 1.6
3RB21 13-4RB0
3RB21 13-4NB0
0.1 ... 0.4
0.32 ... 1.25
3RB21 13-4PB0
1 ... 4
3RB10 [email protected]
1.5 ... 6
3RB10 [email protected]
3RB10 [email protected]
3
3RB21 13-4SB0
3 ... 12
S00
S0
S2
S3
S6
S10/S12
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
... 12
0.1 ... 0.4
0.4 ... 1.6
1.5 ... 6
3 ... 12
6 ... 25
6 ... 25
13 ... 50
13 ... 50
25 ... 100
50 ... 200
55 ... 250
200 ... 540
300 ... 630
Use size S00 + 3RB2913-0AA1 Panel Mount Kit
3RB21 23-4SB0
3RB21 23-4QB0
3RB21 33-4QB0
3RB21 33-4UB0
3RB21 43-4UB0
3RB21 43-4EB0
3RB21 53-4FW2
3RB21 53-4FC2
3RB21 63-4GC2
3 ... 12
6 ... 25
6 ... 25
12.5 ... 50
12.5 ... 50
25 ... 100
3RB21 63-4MC2
160 ... 630
50 ... 200
55 ... 250
Note:
CLASS 10
CLASS 20
3/22
1
2
CLASS 5, 10, 20 and 30
can be set on the unit
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
3RB20 solid-state overload relays with screw connection on auxiliary current side for direct mounting1)2)
and stand-alone installation2)3), CLASS 10 or CLASS 20
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
Set current value
of the inverse-time delayed
overload trip
• Manual and automatic RESET
• Switch position indicator
• TEST function and self-monitoring
Order No.
List
Price $
A
Weight per
PU approx.
kg
Size S001)
S00
0.1 … 0.4
3RB20 16- 1RB0
0.200
0.32 … 1.25
3RB20 16- 1NB0
0.200
1…4
3RB20 16- 1PB0
0.200
3 … 12
3RB20 16- 1SB0
0.200
3RB20 16-1RB0
Size S01)
S0
0.1 … 0.4
3RB20 26- 1RB0
0.220
0.32 … 1.25
3RB20 26- 1NB0
0.220
1…4
3RB20 26- 1PB0
0.220
3 … 12
3RB20 26- 1SB0
0.220
6 … 25
3RB20 26- 1QB0
0.220
6 … 25
3RB20 36- 1QB0
0.360
3RB20 36- 1QW1
0.230
3RB20 36- 1UB0
0.360
3RB20 36- 1UW1
0.230
3RB20 26-1QB0
Size S2 1)3)5)
S2
12.5 … 50
3RB20 36-1UB0
Size S3 1)3)5)
S3
3RB20 46- 1UB0
0.560
with busbar
3RB20 46- 1EB0
0.560
with pass
through CT’s
3RB20 46- 1EW1
0.450
with busbar
3RB20 56- 1FC2
1.030
with pass
through CT’s
3RB20 56- 1FW2
0.690
55 … 250
3RB20 66- 1GC2
1.820
160 … 630
3RB20 66- 1MC2
1.820
12.5 … 50
25 … 100
3RB20 46-1EB0
Size S6 2)5)
S6
50 … 200
3RB20 56-1FW2
Size S10/S122)
S10/S12
and size 14
(3TF68/
3TF69)
2 Class 20
3RB20 66-1MC2
1 Class 10
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 and S0 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "W" in 11th position are equipped with a
straight-through transformer.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
For accessories, see pages 3/53-3/54.
For description, see pages 3/19-3/21.
For technical data, see pages 3/27-3/32.
For dimension drawings, see page 3/33.
For schematic diagrams, see page 3/34.
3/23
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
3RB20 solid-state overload relays with spring-loaded terminals on the auxiliary current side for direct mounting1)2)
and stand-alone installation2)3), CLASS 10 or CLASS 20
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
Set current value
of the inverse-time delayed
overload trip
• Manual and automatic RESET
• Switch position indicator
• TEST function and self-monitoring
Order No.
List
Price $
A
Weight per PU
approx.
kg
Size S001)
S00
0.1 … 0.4
3RB20 16- 1 RD0
0.200
0.32 … 1.25
3RB20 16- 1 ND0
0.200
1…4
3RB20 16- 1 PD0
0.200
3 … 12
3RB20 16- 1 SD0
0.200
3RB20 16-1RD0
Size S01)
S0
0.1 … 0.4
3RB20 26- 1 RD0
0.220
0.32 … 1.25
3RB20 26- 1 ND0
0.220
1…4
3RB20 26- 1 PD0
0.220
3 … 12
3RB20 26- 1 SD0
0.220
6 … 25
3RB20 26- 1 QD0
0.220
6 … 25
3RB20 36- 1 QD0
0.360
3RB20 36- 1 QX1
0.230
3RB20 36- 1 UD0
0.360
3RB20 36- 1 UX1
0.230
3RB20 26-1QD0
Size S2
1)3)5)
S2
12.5 … 50
3RB20 36-1UD0
Size S3 1)3)5)
S3
3RB20 46- 1 UD0
0.560
with busbar
3RB20 46- 1 ED0
0.560
with pass
through CT’s
3RB20 46- 1 EX1
0.450
with busbar
3RB20 56- 1 FF2
1.030
with pass
through CT’s
3RB20 56- 1 FX2
0.690
3RB20 66- 1 GF2
1.820
3RB20 66- 1 MF2
1.820
12.5 … 50
25 … 100
3RB20 46-1ED0
Size S62)5)
S6
50 … 200
3RB20 56-1FX2
Size S10/S122)
S10/S12
55 … 250
and size 14
160 … 630
(3TF68/ 3TF69)
3RB20 66-1MF2
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 and S0 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "X" in 11th position are equipped with a
straight-through transformer.
3/24
2
Class 20
1
Class 10
For accessories, see pages 3/53-3/54.
For description, see pages 3/19-3/21.
For technical data, see pages 3/27-3/32.
For dimension drawings, see page 3/33.
For schematic diagrams, see page 3/34.
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
3RB21 solid-state overload relays with screw connection on auxiliary current side for direct mounting1)2)
and stand-alone installation2)3), CLASS 5, 10, 20 and 30 adjustable
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal ground fault detection (activatable)
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
Set current value
of the inverse-time delayed
overload trip
•
•
•
•
Manual and automatic RESET
Electrical remote RESET integrated
Switch position indicator
TEST function and self-monitoring
With screw connection on auxiliary current side
Order No.
List
Price $
A
Weight per PU
approx.
kg
Size S001)
S00
0.1 … 0.4
3RB21 13-4RB0
0.200
0.32 … 1.25
3RB21 13-4NB0
0.200
1…4
3RB21 13-4PB0
0.200
3 … 12
3RB21 13-4SB0
0.200
3RB21 13-4RB0
Size S01)
S0
0.1 … 0.4
3RB21 23-4RB0
0.220
0.32 … 1.25
3RB21 23-4NB0
0.220
1…4
3RB21 23-4PB0
0.220
3 … 12
3RB21 23-4SB0
0.220
6 … 25
3RB21 23-4QB0
0.220
6 … 25
3RB21 33-4QB0
0.360
3RB21 33-4QW1
0.230
3RB21 33-4UB0
0.360
3RB21 33-4UW1
0.230
3RB21 23-4QB0
Size S21)3)5)
S2
12.5 … 50
3RB21 33-4UB0
Size S31)3)5)
S3
3RB21 43-4UB0
0.560
with busbar
3RB21 43-4EB0
0.560
with pass
through CT’s
3RB21 43-4EW1
0.450
with busbar
3RB21 53-4FC2
1.030
with pass
through CT’s
3RB21 53-4FW2
0.690
55 … 250
3RB21 63-4GC2
1.820
160 … 630
3RB21 63-4MC2
1.820
12.5 … 50
25 … 100
3RB21 43-4EB0
Size S62)5)
S6
50 … 200
3RB21 53-4FC2
Size S10/S122)
S10/S12
and size 14
(3TF68/
3TF69)
3RB21 63-4MC2
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 and S0 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "W" in 11th position are equipped with a
straight-through transformer.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
For accessories, see pages 3/53-3/54.
For description, see pages 3/19-3/21.
For technical data, see pages 3/27-3/32.
For dimension drawings, see page 3/33.
For schematic diagrams, see page 3/34.
3/25
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
3RB21 solid-state overload relays with spring-loaded terminals on the auxiliary current side for direct mounting1)2) and
stand-alone installation1)3), CLASS 5, 10, 20 and 30 adjustable
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal ground fault detection (activatable)
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
•
•
•
•
Manual and automatic RESET
Electrical remote RESET integrated
Switch position indicator
TEST function and self-monitoring
With spring-loaded terminals on auxiliary
current side
Set current value
of the inverse-time delayed
overload trip
Order No.
A
List
Price $
Weight per PU
approx.
kg
Size S001)
S00
0.1 … 0.4
3RB21 13-4RD0
0.200
0.32 … 1.25
3RB21 13-4ND0
0.200
1…4
3RB21 13-4PD0
0.200
3 … 12
3RB21 13-4SD0
0.200
0.1 … 0.4
3RB21 23-4RD0
0.220
0.32 … 1.25
3RB21 23-4ND0
0.220
1…4
3RB21 23-4PD0
0.220
3 … 12
3RB21 23-4SD0
0.220
6 … 25
3RB21 23-4QD0
0.220
6 … 25
3RB21 33-4QD0
0.360
3RB21 33-4QX1
0.230
3RB21 33-4UD0
0.360
3RB21 33-4UX1
0.230
3RB21 13-4RD0
Size S01)
S0
3RB21 23-4QD0
Size S21)3)5)
S2
12.5 … 50
3RB21 33-4UD0
Size S31)3)5)
S3
3RB21 43-4UD0
0.560
with busbar
3RB21 43-4ED0
0.560
with pass
through CT’s
3RB21 43-4EX1
0.450
with busbar
3RB21 53-4FF2
1.030
with pass
through CT’s
3RB21 53-4FX2
0.690
55 … 250
3RB21 63-4GF2
1.820
160 … 630
3RB21 63-4MF2
1.820
12.5 … 50
25 … 100
3RB21 43-4ED0
Size S62)5)
S6
50 … 200
3RB21 53-4FX2
Size S10/S122)
S10/S12
and size 14
(3TF68/
3TF69)
3RB21 63-4MF2
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 and S0 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "X" in 11th position are equipped with a
straight-through transformer.
3/26
For accessories, see pages 3/53-3/54.
For description, see pages 3/19-3/21.
For technical data, see pages 3/27-3/32.
For dimension drawings, see page 3/33.
For schematic diagrams, see page 3/34.
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Technical specifications
Type
3RB20 16,
3RB21 13
3RB20 26,
3RB21 23
3RB20 36,
3RB21 33
3RB20 46,
3RB21 43
3RB20 56,
3RB21 53
3RB20 66,
3RB21 63
Size
S00
S0
S2
S3
S6
S10/S12
Width
45 mm
45 mm
55 mm
70 mm
120 mm
145 mm
General data
Overload, phase failure, and phase unbalance
+ ground fault (for 3RB21 only)
Trips in the event of
Trip class according to IEC 60947-4-1
CLASS 10 / 20 / 5, 10, 20 and 30 adjustable (depending on the version)
Phase failure sensitivity
Yes
Overload warning
No
Reset and recovery
• Reset options after tripping
• Recovery time
- For automatic RESET
- For manual RESET
- For remote RESET
Manual, automatic and remote RESET (depending on the version)
min.
min.
min.
Between 0.5 and 3 min (depending on the preloading)
Immediately
Immediately
Features
• Display of operating status on device
Yes, by means of switch position indicator slide
• TEST function
Yes, test of electronics by pressing the button Test
Test of auxiliary contacts and wiring of control current circuit by actuating
the switch position indicator slide
Self-monitoring
• RESET button
Yes
• STOP button
No
Safe operation of motors with "increased safety" type
of protection
1)
EU type test certificate number according to
guideline 94/9/EU
Ambient temperatures
• Storage/transport
°C
-40 ... +80
• Operation
°C
-25 ... +60
• Temperature compensation
°C
+60
• Permissible rated current at
- Temperature inside cubicle 60°C
%
100
Repeat terminals
• Coil repeat terminal
• Auxiliary contact repeat terminal
Yes
Yes
Degree of protection according to IEC 60529
IP20
Touch protection according to IEC 61140
Finger-safe
Shock resistance with sine according to IEC 60068-2-27 g/ms
15/11
Not required
Not required
IP202)
Finger-safe,
for busbar
connection
with cover
Finger-safe
with cover
Electromagnetic compatibility (EMC)
– Interference immunity
• Conductor-related interference
- Burst according to IEC 61000-4-4
(corresponds to degree of severity 3)
- Surge according to IEC 61000-4-5
(corresponds to degree of severity 3)
kV
2 (power ports), 1 (signal ports)
kV
2 (line to earth), 1 (line to line)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
kV
8 (air discharge), 6 (contact discharge)
• Field-related interference according to IEC 61000-4-3
(corresponds to degree of severity 3)
V/m
10
Degree of severity B according to EN 55011 (CISPR 11) and EN 55022 (CISPR 22)
Electromagnetic compatibility (EMC) –
Emitted interference
Resistance to extreme climates – air humidity
%
Installation altitude above sea level
100
See dimensional drawings
Dimensions
m
Up to 2000
Mounting position
Any
Type of mounting
Direct mounting /
Stand-alone installation with
terminal bracket
Direct mounting /
Stand-alone installation
1) On request.
2) Terminal compartment: degree of protection IP00.
Siemens Industry, Inc.
Industrial Controls Catalog
3/27
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
Type
3RB20 16,
3RB21 13
S00
45 mm
Size
Width
3RB20 26,
3RB21 23
S0
45 mm
3RB20 36,
3RB21 33
S2
55 mm
3RB20 46,
3RB21 43
S3
70 mm
Main circuit
Rated insulation voltage Ui
(pollution degree 3)
V
690
1000
Rated impulse withstand voltage Uimp
kV
6
8
Rated operational voltage Ue
V
690
1000
Type of current
• Direct current
• Alternating current
no
Yes, 50/60 Hz ± 5 (other frequencies on request)
Set current
A
0.1 ... 0.4 to
3 ... 12
Power loss per unit (max.)
W
0.05
Short-circuit protection
- With fuse without contactor
- With fuse and contactor
3 ... 12 to
6 ... 25
6 ... 25 to
12.5 ... 50
12.5 ... 50 to
25 ... 100
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
Safe isolation between main
V
and auxiliary conducting path according to IEC 60947-1
6901)
Connection for main circuit
Screw terminal
Electrical connection version
Screw terminal
• Terminal screw
• Tightening torque
Nm
• Conductor cross-sections (min./max.), 1 or 2 conductors
- So l i d
mm 2
Pozidriv size 2
0.8 ... 1.2
Screw terminal
with box terminal /
straight-through
transformer
Screw terminal
with box terminal /
bus connection /
straight-through
transformer
2 ... 2.5
3 ... 4.5
Allen screw 4 mm
4 ... 6
2 × (0.5 ... 1.5),
2 × (0.75 ... 2.5)
--
2 × (1 ... 2.5),
2 × (2.5 ... 6)
2 × (1 ... 16)
2 × (2.5 ... 16)
2 × (1 ... 2.5),
2 × (2.5 ... 6)
2 × (1 ... 16),
1 × (1 ... 25)
2 × (2.5 ... 35),
1 × (2.5 ... 50)
2 × (max. 25),
1 × (1 ... 35)
2 × (10 ... 50),
1 × (10 ... 70)
2 × (max. 3),
1 × (18 ... 2)
2 × (10 ... 1/0),
2 × (10 ... 2/0)
2 × (6 × 9 × 0.8)
2 × (6 × 9 × 0.8)
- Finely stranded without end sleeve
mm2
- F inely stranded with end sleeve
mm 2
2 × (0.5 ... 1.5),
2 × (0.75 ... 2.5)
- Stranded
m m2
--
- AWG conductors, solid or stranded
AWG 2 × (18 ... 14)
- Ribbon cable conductors
(number x width x circumference)
mm
--
Nm
---
M 6 × 20
4 ... 6
mm 2
m m2
AWG
mm
-----
2 × 70
3 × 70
2/0
12
mm
–
15
18
mm2
mm2
---
2)
2)
2)
2)
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Finely stranded with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Straight-through transformers
• Diameter of opening
• Conductor cross-section (max.)
- N YY
- H07RN-F
2 × (14 ... 10)
1) For grounded networks, otherwise 600 V.
2) On request.
3/28
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Type
3RB20 56,
3RB21 53
S6
120 mm
Size
Width
3RB20 66,
3RB21 63
S10/S12
145 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3)
V
1000
Rated impulse withstand voltage Uimp
kV
8
Rated operational voltage Ue
V
1000
Type of current
• Direct current
• Alternating current
No
Yes, 50/60 Hz ± 5 (other frequencies on request)
Set current
A
50 ... 200
Power loss per unit (max.)
W
0.05
Short-circuit protection
- With fuse without contactor
- With fuse and contactor
55 ... 250 to
160 ... 630
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
6901)
Safe isolation between main
V
and auxiliary conducting path according to IEC 60947-1
Connection for main circuit
Electrical connection version
Screw terminal
• Terminal screw
• Tightening torque
Nm
• Conductor cross-sections (min./max.), 1 or 2 conductors
- Solid
mm2
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
- Ribbon cable conductors
(number x width x circumference)
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Finely stranded with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Straight-through transformers
• Diameter of opening
• Conductor cross-section (max.)
- N YY
- H07RN-F
Screw terminal
with box terminal/
Bus connection
4 mm Allen screw
10 ... 12
5 mm Allen screw
20 ... 22
--
mm2
With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
mm2 With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
2
With 3RT19 55-4G box terminal:
mm
2 × (max. 70),
1 × (16 ... 70)
With 3RT19 56-4G box terminal:
2 × (max. 120),
1 × (16 ... 120)
AWG With 3RT19 55-4G box terminal:
2 × (max. 1/0),
1 × (6 ... 2/0)
With 3RT19 56-4G box terminal:
2 × (max. 3/0),
1 × (6 ... 250 kcmil)
With 3RT19 55-4G box terminal:
mm
2 × (6 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 6 × 15.5 × 0.8)
With 3RT19 56-4G box terminal:
2 × (10 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 10 × 15.5 × 0.8)
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
2 × (70 ... 240),
front clamping point only:
1 × (95 ... 300)
rear clamping point only:
1 × (120 ... 240)
2 × (2/0 ... 500 kcmil),
front clamping point only:
1 × (3/0 ... 600 kcmil)
rear clamping point only:
1 × (250 kcmil ... 500 kcmil)
2 × (20 × 24 × 0.5),
1 × (6 × 9 × 0.8 ... 20 × 24 × 0.5)
Nm
M 8 × 25
10 ... 14
M 10 × 30
14 ... 24
m m2
m m2
AWG
mm
16 ... 952)
25 ... 1202)
4 ... 250 kcmil
15
50 ... 2403)
70 ... 2403)
2/0 ... 500 kcmil
25
mm
24.5
--
120
70
---
2
mm
mm2
1) For grounded networks, otherwise 600 V.
2) When connecting cable lugs according to DIN 46235, use the
3RT19 56-4EA1 terminal cover for conductor cross-sections
from 95 mm2 to ensure phase spacing.
Siemens Industry, Inc.
Industrial Controls Catalog
Screw terminal with box terminal/
Bus connection /
Straight-through transformer
3) When connecting cable lugs according to DIN 46234 for conductor crosssections from 240 mm2 as well as DIN 46235 for conductor cross-sections
from 185 mm2, use the 3RT19 56-4EA1 terminal cover to ensure phase
spacing.
3/29
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
Type
3RB20 16,
3RB21 13
S00
45 mm
Size
Width
3RB20 26,
3RB21 23
S0
45 mm
3RB20 36,
3RB21 33
S2
55 mm
3RB20 46,
3RB21 43
S3
70 mm
3RB20 56,
3RB21 53
S6
120 mm
3RB20 66,
3RB21 63
S10/S12
145 mm
Auxiliary circuit
Number of NO contacts
1
Number of NC contacts
1
Auxiliary contacts – assignment
1 NO for the signal "tripped",
1 NC for switching off the contactor
Rated insulation voltage Ui (pollution degree 3)
V
300
Rated impulse withstand voltage Uimp
kV
4
• NC contact with alternating current AC-14/AC-15
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
- 400 V
- 600 V
- 690 V
A
A
A
A
A
A
A
1)
• NO contact with alternating current AC-14/AC-15:
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
- 400 V
- 600 V
- 690 V
A
A
A
A
A
A
A
1)
• NC, NO contact with direct current DC-13:
Rated operational current Ie at Ue:
- 24 V
- 60 V
- 110 V
- 125 V
- 250 V
A
A
A
A
A
2
0.55
0.3
0.3
0.1
• Continuous thermal current Ith
A
6
Auxiliary contacts – Contact rating
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
1)
1)
3
1)
1)
1)
1)
1)
3
1)
1)
1)
Yes
Short-circuit protection
• With fuse
- gL/gG operational class
- qu i c k
A
A
6
• With miniature circuit-breaker (C-characteristic)
A
1)
Safe isolation between main
V
and auxiliary conducting path according to IEC 60947-1
1)
300
CSA, UL, and UR rated data
B300, R300
Auxiliary circuit – switching capacity
Connection of the auxiliary circuit
Screw terminal or spring-loaded terminals
Connection type
Screw terminal
• Terminal screw
Pozidriv size 2
• Tightening torque
Nm
0.8 ... 1.2
• Conductor cross-sections (min./max.), 1 or 2 conductors
- So l i d
- Finely stranded without end sleeve
- F inely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
mm 2
mm2
mm 2
m m2
AWG
1 × (0.5 ... 4), 2 × (0.5 ... 2.5)
-1 × (0.5 ... 2.5), 2 × (0.5 ... 1.5)
-2 × (20 ... 14)
mm 2
mm2
mm 2
m m2
AWG
2 × (0.25 ... 1.5)
-2 × (0.25 ... 1.5)
2 × (0.25 ... 1.5)
2 × (24 ... 16)
Spring-loaded terminals
• Conductor cross-sections (min./max.), 1 or 2 conductors
- So l i d
- Finely stranded without end sleeve
- F inely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
1) On request.
3/30
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Short-circuit protection with fuses for motor feeders
For short-circuit currents up to 50 kA at 400 to 690 V
Overload relays
Contactor
CLASS
690 V
5 and 10
Setting range
Type
20
Fuse links1)
LV HRC
Type 3NA
DIAZED
Type 3SB
NEOZED
Type 3SE
gL/gG operational class
30
Rated operational current Ie AC-3 in A at
400 V
500 V
690 V
400 V
500 V
690 V
400 V
500 V
690 V
Type of coordination2)
1
2
Size S00
0.1 ... 0.4 A
3RT10 15
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
35
6
0.32 ... 1.25 A
3RT10 15
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
35
6
1 ... 4 A
3RT10 15
3RT10 16
3RT10 17
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
35
35
35
20
20
20
3 ... 12 A
3RT10 16
3RT10 17
9
12
6.5
9
5.2
6.3
9
10
6.5
9
5.2
6.3
9
9
6.5
9
5.2
6.3
35
35
20
20
3 ... 12 A
3RT10 23
3RT10 24
3RT10 25
9
12
12
6.5
12
12
5.2
9
12
9
12
12
6.5
12
12
5.2
9
12
-12
12
-12
12
-9
12
63
63
63
25
25
25
6 ... 25 A
3RT10 24
3RT10 25
3RT10 26
12
17
25
12
17
18
9
13
13
12
16
16
12
16
16
9
13
13
12
14
14
12
14
14
9
13
13
63
63
100
25
25
35
6 ... 25 A
3RT10 34
3RT10 35
25
25
25
25
20
24
22.3
25
22.3
25
20
24
19.1
25
19.1
25
19.1
24
125
125
63
63
12.5 ... 50 A
3RT10 34
3RT10 35
3RT10 36
32
40
50
32
40
50
20
24
24
22.3
29.4
32.7
22.3
29.4
32.7
20
24
24
19.1
26.5
26.5
19.1
26.5
26.5
19.1
24
24
125
125
160
63
63
80
Size S0
Size S2
Size S3
12.5 ... 50 A
3RT10 44
3RT10 45
50
50
50
50
47
50
49
50
49
50
47
50
41.7
45
41.7
45
41.7
45
200
200
125
160
25 ... 100 A
3RT10 44
3RT10 45
3RT10 46
3RT10 54
3RT10 55
65
80
95
100
--
65
80
95
100
--
47
58
58
100
--
49
53
59
81.7
100
49
53
59
81.7
100
47
53
58
81.7
100
41.7
45
50
69
90
41.7
45
50
69
90
41.7
45
50
69
90
200
200
200
355
355
125
160
160
315
315
3RT10 54
3RT10 55
3RT10 56
115
150
185
115
150
185
115
150
170
81.7
107
131
81.7
107
131
81.7
107
131
69
90
111
69
90
111
69
90
111
355
355
355
315
315
315
55 ... 250 A
3RT10 64
3RT10 65
3RT10 66
225
250
250
225
250
250
225
250
250
160
188
213
160
188
213
160
188
213
135
159
180
135
159
180
135
159
180
500
500
500
400
400
400
160 ... 630 A
3RT10 64
3RT10 65
3RT10 66
3RT10 75
3RT10 76
225
265
300
400
500
225
265
300
400
500
225
265
280
400
450
160
188
213
284
355
160
188
213
284
355
160
188
213
284
355
--180
240
300
--180
240
300
--180
240
300
500
500
500
630
630
400
400
400
400
500
3RT12 64
3RT12 65
3RT12 66
3RT12 75
3RT12 76
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
173
204
231
316
385
173
204
231
316
385
173
204
231
316
385
500
500
500
800
800
500
500
500
800
800
3TF683)
3TF693)
630
630
630
630
630
630
440
572
440
572
440
572
376
500
376
500
376
500
800
800
5004)
6304)
Size S6
50 ... 200 A
Size S10/S12
1) Please observe operational voltage.
2) Coordination and short-circuit equipment according to EN 60947-4-1:
Type of coordination 1: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They do not need to be suitable for further operation without repair and the
renewal of parts.
Type of coordination 2: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They must be suitable for further operation.
There is a risk of contact welding.
3) Contactor cannot be mounted.
Siemens Industry, Inc.
Industrial Controls Catalog
4) Please ensure that the maximum AC-3 operational current has sufficient
safety clearance from the rated current of the fuses.
3/31
Overload Relays
3RB2 Solid-State Overload Relays
SIRIUS
3RB20, 3RB21 for
standard applications
Characteristic curves
The smallest current used for tripping is called the minimum tripping current. According to IEC 60947-4-1, this current must be
within specified limits. The limits of the total tripping current for
the 3RB20/3RB21 solid-state overload relays for symmetrical
three-pole loads are between 105 % and 120 % of the set current.
Tripping characteristics for 3-pole loads
1000
800
600
Tripping time
The tripping characteristics show the relationship between the
tripping time and tripping current as multiples of the set current
Ie and are given for symmetrical three-pole and two-pole loads
from the cold state.
3…5s
CLASS 10
5 … 10 s
CLASS 20
10 … 20 s
CLASS 30
20 … 30 s
The tripping characteristic for a three-pole overload relay from
the cold state (see illustration 1) only apply if all three phases are
simultaneously loaded with the same current. In the event of a
phase failure the 3RB20/3RB21 solid-state overload relays
switch off the contactor more quickly in order to minimize heating
of the load in accordance with the tripping characteristic for twopole loads from the cold state (see illustration 2). With phase
unbalance the devices switch off depending on the reason for
the unbalance between the two characteristic curves.
Compared with a cold load, a load at operating temperature
obviously has a lower temperature reserve. The tripping time of
the 3RB20/3RB21 solid-state overload relays is reduced therefore to about 30 % when loaded with the set current Ie for an
extended period.
20
CLASS 30
10
8
6
CLASS 20
CLASS 10
4
CLASS 5
2
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 1
Tripping characteristics for 2-pole loads
1000
800
600
Tripping time
Tripping time
200
40
The tripping times according to IEC 60947-4-1, tolerance band
E, are as follows for:
CLASS 5
400
s
100
80
60
The tripping characteristic starts with the minimum tripping
current and continues with higher tripping currents based on the
characteristics of the so-called trip classes (CLASS 10,
CLASS 20 etc.). The trip classes describe time intervals within
which the overload relays have to trip with 7.2 times the set
current Ie from the cold state for symmetrical three-pole loads.
Trip class
NSB0_01525
NSB0_01526
400
s
200
100
80
60
40
20
CLASS 30
10
8
6
CLASS 20
4
CLASS 10
2
CLASS 5
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 2
The above illustrations are schematic representations of
characteristic curves.
3/32
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Dimensional drawings
51
48
25
85
122
147
45
57
NSB0_01510
64
Ø11
73
Ø9
125
NSB0_01518
3RB20 16, 3RB21 13, size S00
145
61
6
156
75
9
56
Ø15
57
76
92
NSB0_01512
63
60
70
2
5
119
64
Ø5
30
18
31
NSB0_01514
5
70
NSB0_01515
35
67
86
Ø6
89
106
11
64
104
21
3RB20 36, 3RB21 33, size S2
23
27
22
3RB20 36, 3RB21 33, size S2 with straight-through transformer
5
54
104
Ø5
51
18
5
45
54
3RB20 26, 3RB21 23, size S0
NSB0_01513
45
74
NSB0_01511
73
3RB20 66, 3RB21 63, size S10/S12
119
16
34
3RB20 46, 3RB21 43, size S3 with straight-through transformer
3RB20 46, 3RB21 43, size S3
37
79
17
60
60
79
95
99
119
79
95
62
Ø5
NSB0_01517
NSB0_01516
95
120
Ø7
3RB20 56, 3RB21 53, size S6
Siemens Industry, Inc.
Industrial Controls Catalog
5
95
120
3
47
Ø7
5
73
150
150
3RB20 56, 3RB21 53, size S6 with straight-through transformer
3/33
Overload Relays
3RB2 Solid-State Overload Relays
3RB20, 3RB21 for
standard applications
Schematics
3RB20 16 overload relays
3RB20 26 to 3RB20 66 overload relays
3RB21 13 overload relays
3RB21 23 to 3RB21 63 overload relays
3/34
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Overview
The modular, solid-state overload relays with external power
supply type 3RB22 (with monostable auxiliary contacts) and
type 3RB23 (with bistable auxiliary contacts) up to 630 A (up to
820 A possible with a series transformer) have been designed
for inverse-time delayed protection of loads with normal and
heavy starting (see Function) against excessive temperature
rises due to overload, phase unbalance or phase failure. An
overload, phase unbalance or phase failure result in an increase
of the motor current beyond the set motor rated current. This
current rise is detected by means of a current measuring module
and electronically evaluated by a special evaluation module
which is connected to it. The evaluation electronics sends a
signal to the auxiliary contacts. The auxiliary contacts then
switch off the load by means of the contactors control circuit. The
break time depends on the ratio between the tripping current
and set current Ie and is stored in the form of a long-term stable
tripping characteristic (see Characteristic Curves). The "tripped"
status is signaled by means of a continuous red "Overload" LED.
3RB22/3RB23 evaluation module
(1)Green "Ready" LED:
A continuous green light signals that the device is working correctly.
(2)Red "Ground Fault" LED:
A continuous red light signals a ground fault.
(3)Red "Thermistor" LED:
A continuous red light signals an active thermistor trip.
(4)Red "Overload" LED:
A continuous red light signals an active overload trip; a flickering red
light signals an imminent trip (overload warning).
(5)Motor current and trip class adjustment:
Setting the device to the motor current and to the required trip class
dependent on the starting conditions is easy with the two rotary knobs.
(6)Selector switch for manual/automatic RESET:
With this switch you can choose between manual and automatic
RESET.
(7)Test/RESET button:
Enables testing of all important device components and functions,
plus resetting of the device after a trip when manual RESET is
selected.
(8)Connecting terminals (removable terminal block):
The generously sized terminals permit connection of two conductors
with different cross-sections for the auxiliary, control and sensor
circuits. Connection is possible with screw-type terminals and alternatively with spring-loaded terminals.
(9)3RB29 85 function expansion module:
Enables more functions to be added, e.g. internal ground fault
detection and/or an analog output with corresponding signals.
The LED indicates imminent tripping of the relay due to overload,
phase unbalance or phase failure by flickering when the limit
current has been violated. This warning can also be used as a
signal through auxiliary contacts.
In addition to the described inverse-time delayed protection of
loads against excessive temperature rise, the 3RB22/3RB23
solid-state overload relays also allow direct temperature monitoring of the motor windings (full motor protection) by failsafe
connection of a PTC sensor circuit. With this temperature-dependent protection, the loads can be protected against overheating
caused indirectly by reduced coolant flow, for example, which
cannot be detected by means of the current alone. In the event
of overheating, the devices signal the contactor to switch off,
and thus the load, by means of the auxiliary contacts. The
"tripped" status is signaled by means of a continuous red "Thermistor" LED.
To also protect the loads against high-resistance short-circuits
due to damage to the insulation, humidity, condensed water,
etc., the 3RB22/3RB23 solid-state overload relays offer the possibility of internal ground fault monitoring in conjunction with a
function expansion module; not possible in conjunction with a
contactor assembly for Wye-Delta starting). In the event of a
ground fault the 3RB22/3RB23 relays trip instantaneously. The
"tripped" status is signaled by means of a red "Ground Fault"
LED. Signaling through auxiliary contacts is also possible.
After tripping due to overload, phase unbalance, phase failure,
thermistor tripping or ground fault, the relay may be reset
manually or automatically after the recovery time has elapsed
(see Function).
In conjunction with a function expansion module the motor current measured by the microprocessor can be output in the form
of an analog signal 4 ... 20 mA DC for operating rotary coil
instruments or for feeding into analog inputs of programmable
logic controllers. With an additional AS-Interface analog module
the current values can also be transferred over the AS-i bus
system.
The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and reusable
materials.
They comply with important worldwide standards and
approvals.
3RB29 06 current measuring module
Siemens Industry, Inc.
Industrial Controls Catalog
3/35
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Benefits
"Increased safety" type of protection EEx e according to
ATEX guideline 94/9/EC
The most important features and benefits of the 3RB22/3RB23
solid-state overload relays are listed in the overview table
(see Overload Relays, General Data).
The 3RB22/3RB23 solid-state overload relays are suitable for the
overload protection of explosion-proof motors with "increased
safety" type of protection EEx e. The relays meet the
requirements of EN 60079-7 (Electrical apparatus for potentially
explosive atmospheres – Increased safety "e").
Application
Industries
The 3RB22/3RB23 solid-state overload relays are suitable for
customers from all industries who want to provide optimum
inverse-time delayed and temperature-dependent protection of
their electrical loads (e.g. motors) under normal and heavy
starting conditions (CLASS 5 to CLASS 30), minimize project
completion times, inventories and power consumption, and
optimize plant availability and maintenance management.
Application
When using 3RB23 solid-state overload relays for the protection
of EEx e motors, separate monitoring of the control supply
voltage is recommended.
The basic safety and health requirements of ATEX guideline
94/9/EG are fulfilled by compliance with
• EN 60947-1
• EN 60947-4-1
• EN 60947-5-1
• EN 60079-14
The 3RB22/3RB23 solid-state overload relays have been
designed for the protection of three-phase asynchronous and
single-phase AC motors.
EU type test certificate for Group II, Category (2) G/D under
application. Number on request.
If single-phase AC motors are to be protected by the
3RB22/3RB23 solid-state overload relays, the main circuits of
the current measuring modules must be series-connected.
Accessories
Ambient conditions
The devices are insensitive to external influences such as
shocks, corrosive environments, ageing and temperature
changes.
For the temperature range from –25 C to +60 °C, the
3RB22/3RB23 solid-state overload relays compensate the
temperature according to IEC 60947-4-1.
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
• Push-in lugs for screw (panel) mounting the size S00 to S3
current measuring modules
Configuration notes for use of the devices below –25 °C or above
+60 °C on request.
3/36
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Selection and ordering data
Conversion aid 3RB12 ––> 3RB22/3RB23
Size
S00/S0
Old Order No.
Complete unit
Setting range
A
3RB12 46-1P @@@ 1.25 ... 6.3
3RB12 46-1Q @@@ 6.3 ... 25
S2/S3
3RB12 46-1E @@@ 25 ... 100
S6
3RB12 53-0F @@@ 50 ... 205
S10/S12
3RB12 57-0K @@@ 125 ... 500
3RB12 62-0L @@@ 200 ... 820
110 ... 120 V AC
220 ... 240 V AC
24 V DC
Standard design
with ground fault signal
Standard design
with overload warning
Version with internal
ground fault detection
and ground fault signal
Version with internal
ground fault detection
and overload warning
Version
with analog output
Bistable version
with ground fault signal
Bistable version
with overload warning
Siemens Industry, Inc.
Industrial Controls Catalog
New Order No.
Setting range
Current measuring A
module
3RB29 06-2BG1
0.3 ... 3
3RB29 06-2DG1
2.4 ... 25
3RB29 06-2JG1
3RB29 56-2TG2
3RB29 56-2TH2
10 ... 100
3RB29 66-2WH2
New Order No.
New Order No.
Evaluation module Function expansion
module
[email protected] 83-4AA1
3RB29 [email protected]@@
20 ... 200
63 ... 630 (820)
00
Integrated
Integrated
Integrated
Not available
10
2
20
2
CB1
30
2
CA1
40
2
AA0
01
Not available
--
11
3
G
M
B
Integrated
Integrated
Integrated
-Not required
Not required
3/37
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
3RB22/3RB23 solid-state overload relays for full motor protection with screw connection or spring-loaded terminals
for stand-alone installation, CLASS 5, 10, 20 and 30 adjustable
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• External power supply 24 ... 240 V AC/DC
• Auxiliary contacts 2 NO +2 NC
• Manual and automatic RESET
• Electrical remote RESET integrated
• 4 LEDs for operating and status displays
Size
Contactor
Version
• TEST function and self-monitoring
• Internal ground fault detection with function expansion
module
• Screw connection or spring-loaded terminals for auxiliary,
control and sensor circuits
• Input for PTC sensor circuit
• Analog output with function expansion module
Connection type
Order No.
List
Price $
Weight per
PU approx.
kg
Evaluation modules
S00 ... S12
Monostable
Screw connection
3RB22 83-4AA1
0.300
Spring-loaded
terminals
3RB22 83-4AC1
0.300
Screw connection
3RB23 83-4AA1
0.300
Spring-loaded
terminals
3RB23 83-4AC1
0.300
Analog Basic 1 module1)
Analog output DC 4 ... 20 mA, with
overload warning
3RB29 85-2AA0
0.030
Analog Basic 1 GF module1)2)
Analog output DC 4 ... 20 mA, with
internal ground fault detection and
overload warning
3RB29 85-2AA1
0.030
Analog Basic 2 GF module1)2)
Analog output DC 4 ... 20 mA, with
internal ground fault detection and
ground fault signaling
3RB29 85-2AB1
0.030
Basic 1 GF module2)
with internal ground fault detection
and overload warning
3RB29 85-2CA1
0.030
Basic 2 GF module2)
with internal ground fault detection
and ground fault signaling
3RB29 85-2CB1
0.030
Bistable
3RB2. 83-4AA1
3RB2. 83-4AC1
Function expansion modules
–
1) The analog signal 4 ... 20 mA DC can be used for operating rotary coil
instruments or for feeding into analog inputs of programmable logic
controllers.
2) The following information on ground fault protection refers to sinusoidal
residual currents at 50/60 Hz:
- With a motor current of between 0.3 and 2 times the set current Ie the unit
will trip at a ground fault current equal to 30% of the set current.
- With a motor current of between 2 and 8 times the set current Ie the unit
will trip at a ground fault current equal to 15% of the set current.
- The trip delay amounts to between 0.5 and 1 second.
Note: Analog input modules, e. g. SM 331, must be configured
for 4-wire measuring transducers. In this case the analog input
module must not supply current to the analog output of the
3RB22/ 3RB23 relay.
For accessories, see page 3/39.
For description, see pages 3/35-3/36, 3/40-3/42.
For technical data, see pages 3/43-3/48.
For dimension drawings, see pages 3/49-3/50.
For schematic diagrams, see page 3/51.
3/38
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Current measuring modules for direct mounting1) and stand-alone installation1)2)
Size
Con-tactor3)
Set current value of the
inverse-time delayed overload trip
Order No.
List
Price $
A
Weight per
PU approx.
kg
Size S00/S02)4)
0.3 … 3
3RB29 06-2BG1
0.100
2.4 … 25
3RB29 06-2DG1
0.150
S2/S3
10 … 100
3RB29 06-2JG1
0.350
S6
20 … 200
with pass through CT’s
3RB29 56-2TG2
0.600
with busbar
3RB29 56-2TH2
1.000
3RB29 66-2WH2
1.750
S00/S0
3RB29 06-2.G1
Size S2/S32)4)
3RB29 06-2JG1
Size S61)4)
3RB29 56-2TG2
Size S10/S121)
S10/S12 and
size 14 (3TF68/
3TF69)
63 … 630
3RB29 66-2WH2
1) The current measuring modules with an Order No. ending with "2" are
designed for direct mounting and stand-alone installation. For
3TF68/3TF69 contactors, direct mounting is not possible.
2) The current measuring modules with an Order No. ending with "1" are
designed for stand-alone installation.
Size
Contactor
3) Observe maximum rated operational current of the devices.
4) The modules with an Order No. with "G" in 11th position are equipped with
a straight-through transformer.
Version
Order No.
List
Price $
Weight per
PU approx.
kg
Connecting cables (essential accessory)
S00 ... S12
For connection between evaluation module and current
measuring module
• Length 0.1 m
3RB29 87-2B
0.010
• Length 0.5 m
3RB29 87-2D
0.020
3RB29 87-2.
For accessories, see page 3/54.
For description, see pages 3/35-3/36, 3/40-3/42.
For technical data, see pages 3/43-3/48.
For dimension drawings, see pages 3/49-3/50.
For schematic diagrams, see page 3/51.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
3/39
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Design
Function
Device concept
Basic functions
The 3RB22/3RB23 solid-state overload relays are based on a
modular device concept. Each device always comprises an
evaluation module, which is independent of the motor current,
and a current measuring module, which is dependent on the motor current. The two modules are electrically interconnected by a
connection cable through the system interface.
The 3RB22/3RB23 solid-state overload relays are designed for:
• Inverse-time delayed protection of loads from overloading
• Inverse-time delayed protection of loads from phase
unbalance
• Inverse-time delayed protection of loads from phase failure
• Temperature-dependent protection of loads by connecting a
PTC sensor circuit
• Protection of loads from high-resistance short-circuits (internal
ground-fault detection; detection of fault currents > 30 % of
the set current Ie)
• Output of an overload warning
• Output of an analog signal 4 to 20 mA DC as image of the
flowing motor current
The basic functionality of the evaluation module can be optionally expanded with corresponding function expansion modules.
The function expansion modules are integrated in the evaluation
module for this purpose through a simple plug connection.
Mounting options
Current measuring modules
The current measuring modules size S00/S0 and S2/S3 are
designed for stand-alone installation. By contrast, the current
measuring modules size S6 and S10/S12 are suitable for
stand-alone installation or direct mounting.
The basic functions of the evaluation modules in conjunction
with function expansion modules are listed in the following table:
Evaluation modules
Evaluation
module
Function expansion module
Basic functions
The evaluation modules can be mounted either on the current
measuring module (only sizes S00/S0 and S2/S3) or separately.
3RB22 83-4AA1
None
Connection technique
3RB23 83-4AA1
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning
Main circuit (current measuring module)
3RB23 83-4AC1
3RB29 85-2CA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning
3RB29 85-2CB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal
3RB29 85-2AA0
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning,
analog output
3RB29 85-2AA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning,
analog output
3RB29 85-2AB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal,
analog output
3RB22 83-4AC1
For sizes S00/S0, S2/S3 and S6, the main circuit can also be
connected by the straight-through transformer method. In this
case, the cables of the main circuit are routed directly through
the feed-through openings of the relay to the contactor
terminals.
For sizes S6 and S10/S12, the main circuit can be connected
with the help of the Busbar. In conjunction with the corresponding box terminals, screw terminals are also available.
Auxiliary circuit (evaluation module)
Connection of the auxiliary circuit (removable terminal block) is
possible with either screw terminals or spring-loaded terminals.
Overload relays in contactor assemblies for
Wye-Delta starting
When overload relays are used in combination with contactor
assemblies for Wye-Delta starting it must be noted that only
0.58 times the motor current flows through the line contactor. An
overload relay mounted onto the line contactor must be set to
0.58 times the motor current.
When 3RB22/3RB23 solid-state overload relays are used in
combination with contactor assemblies for Wye-Delta starting,
the function expansion modules for internal ground-fault detection must not be used.
Operation with frequency converter
The 3RB22/3RB23 solid-state overload relays are suitable for
frequencies of 50/60 Hz and the associated harmonics. This
permits the 3RB22/3RB23 overload relays to be used on the
incoming side of the frequency converter.
If motor protection is required on the outgoing side of the frequency converter, the 3RN thermistor motor protection devices
or the 3RU11 thermal overload relays are available for this purpose.
Control circuit
The 3RB22/3RB23 solid-state overload relays require an external power supply (24–240 V AC/DC), i.e. an additional supply
voltage is necessary.
Short-circuit protection
Fuses or motor starter protectors must be used for short-circuit
protection. For assignments of the corresponding short-circuit
protection devices to the 3RB22/3RB23 solid-state overload relays with/without contactor see Technical Specifications and
Selection and Ordering Data.
Trip classes
The 3RB22/3RB23 solid-state overload relays are suitable for
normal and heavy starting. The required trip class (CLASS 5, 10,
20 or 30) can be adjusted by means of a rotary knob depending
on the current starting condition.
For details of the trip classes see Characteristic Curves.
3/40
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Phase failure protection
TEST function
The 3RB22/3RB23 solid-state overload relays are fitted with
phase failure protection (see Characteristic Curves) in order to
minimize temperature rises of the load during single-phase
operation.
The combined TEST/RESET button can be used to check
whether the relay is working correctly. The test can be aborted at
any time by letting go of the TEST/RESET button.
Setting
The 3RB22/3RB23 solid-state overload relays are set to the
motor rated current by means of two rotary knobs.
• The upper rotary knob (CLASS/Iemax) is divided into 4 ranges:
1 A, 10 A, 100 A and 1000 A. The zone must be selected
which corresponds to the rated motor current and the current
measuring module to be used with it. With the range selected
the required trip class (CLASS 5, 10, 20 or 30) can be determined.
• The lower rotary knob with percent scale (10 % ... 100 %) is
then used to set the rated motor current in percent of the range
selected with the upper rotary button.
LEDs, the device configuration (this depends on which expansion module is plugged in) and the device hardware are tested
while the button is kept pressed for 6 seconds. Simultaneously
and for another 18 seconds a direct current proportional in size
to the maximum phase of the main current is fed in at the terminals I(+) and I(-). By comparing the analog signal, which is to be
measured, with the main current, the accuracy of the current
measurement can be determined. In this case 4 mA corresponds to 0 % and 20 mA to 125 % of the set current. After
24 seconds the auxiliary contacts are switched and the feeder
switch off as the result, bringing the test to an end.
After a test trip a faultless relay is reset by pressing the
TEST/RESET button. If a hardware fault is detected, the device
trips and cannot be reset.
Example
• Rating of induction motor = 45 kW (50 Hz, 400 V AC)
• Rated motor current = 80 A
• Required trip class = CLASS 20
• Selected transformer: 10 to 100 A
Self-monitoring
Solution
• Step 1: Use the upper rotary knob (CLASS) to select the 100 A
range
• Step 2: Within the 100 A range set the trip class CLASS 20
• Step 3: Set the lower rotary knob to 80 % (= 0.8) of
100 A × 0.8 = 80 A.
The particular operating status of the 3RB22/3RB23 solid-state
overload relays is displayed by means of four LEDs:
• Green "Ready" LED: A continuous green light signals that the
overload relay is ready for operation. The 3RB22/3RB23 overload relays are not ready (LED "OFF") if there is no control
supply voltage or if the function test was negative.
• Red "Ground fault" LED: A continuous red light signals a
ground fault.
• Red "Thermistor" LED: A continuous red light signals a
temperature-dependent trip.
• Red "Overload" LED: A continuous red light signals an inversetime delayed trip; a flickering red light signals an imminent
inverse-time delayed trip (overload warning).
If the current which is set on the evaluation module does not
correspond to the current range of the connected current transformer, an error will result.
Manual and automatic reset
In the case of the 3RB22/3RB23 solid-state overload relays, a
slide switch can be used to choose between automatic and
manual resetting.
The 3RB22/3RB23 solid-state overload relays have a self-monitoring feature, i.e. the devices constantly monitor their own basic
functions and trip if an internal fault is detected.
Display of the operating status
Auxiliary contacts
If manual reset is set, a reset can be carried out directly on the
device after a trip by pressing the blue TEST/RESET button.
A remote RESET can be carried out electrically by jumpering the
terminals Y1 and Y2.
The 3RB22/3RB23 solid-state overload relays have two outputs,
each with one NO contact and one NC contact. Their basic assignment/function may be influenced by function expansion
modules.
If the slide switch is set to automatic RESET, the relay is reset
automatically.
The 3RB22 and 3RB23 differ with respect to the tripping characteristics of their auxiliary contacts – monostable or bistable:
The time between tripping and resetting is determined by the
recovery time.
The monostable 3RB22 solid-state overload relays will enter the
"tripped" state if the control supply voltage fails (> 200 ms), and
return to the original state they were in before the control supply
voltage failed when the voltage returns. These devices are therefore especially suited for plants in which the control voltage is not
strictly monitored.
Recovery time
With the 3RB22/3RB23 solid-state overload relays the recovery
time after inverse-time delayed tripping is approx. 3 minutes
regardless of the selected reset mode. The recovery time allows
the load to cool down.
However, in the event of temperature-dependent tripping by
means of a connected PTC thermistor sensor circuit, the device
can only be manually or automatically reset once the winding
temperature at the installation location of the PTC thermistor has
fallen 5 Kelvin below its response temperature.
After a ground fault trip the 3RB22/3RB23 solid-state overload
relay trips can be reset immediately without a recovery time.
Siemens Industry, Inc.
Industrial Controls Catalog
The bistable 3RB23 overload relays do not change their "tripped"
or "not tripped" status if the control voltage fails. The auxiliary
contacts only switch over in the event of an overload and if the
supply voltage is present. These devices are therefore especially suited for plants in which the control voltage is monitored
separately.
Response if the control supply voltage fails
If the control supply voltage fails for more than 0.2 s, the output
relays respond differently depending on the version: Monostable
or bistable.
3/41
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Response of the
output relays
in the event of
Monostable
Bistable
3RB22
3RB23
Failure of the control
supply voltage
The device trips
No change of the switching status of the auxiliary
contacts
Return of the control The device resets
supply voltage without previous tripping
No change of the switching status of the auxiliary
contacts
Return of the control
supply voltage after
previous tripping
The device remains
tripped
The device remains
tripped
Reset:
• For overload tripping,
after 3 minutes
• For thermistor tripping,
after the temperature
has fallen 5 K below the
response temperature
• For ground-fault tripping, immediately
Reset:
• For overload tripping,
after 3 minutes
• For thermistor tripping,
after the temperature
has fallen 5 K below the
response temperature
• For ground-fault tripping, immediately
Monostable and bistable responses of the output relays
3/42
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Technical specifications
Type – Overload relay of complete system
3RB22, 3RB23
Size
S00 ... S10/S12
General data
Overload, phase failure and phase unbalance (> 40 % according to NEMA),
+ ground fault (with corresponding function expansion module) and activation of the
thermistor motor protection (with closed PTC sensor circuit)
Trips in the event of
Trip class according to IEC 60947-4-1
CLASS 5, 10, 20 and 30 adjustable
Phase failure sensitivity
Yes
Overload warning
Yes, from 1.125 x Ie for symmetrical loads
and from 0.85 x Ie for unsymmetrical loads
Reset and recovery
• Reset options after tripping
• Recovery time
- F or automatic RESE T
Manual, automatic and remote RESET
min
- F o r m a nu a l R E S E T
min
- F or remote RESET
min
Features
• Display of operating status on device
- For tripping due to overcurrent: 3 (stored permanently)
- For tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- For tripping due to a ground fault: no automatic RESET
- For tripping due to overcurrent: 3 (stored permanently)
- For tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- For tripping due to a ground fault: immediately
- For tripping due to overcurrent: 3 (stored permanently)
- For tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- For tripping due to a ground fault: immediately
Yes, with 4 LEDs: Green "Ready" LED, Red "Ground Fault" LED,
Red "Thermistor" LED and Red "Overload" LED
Yes, test of LEDs, electronics, auxiliary contacts and wiring
of control current circuit by pressing the button TEST/RESET /
Self-monitoring
Yes, with the TEST/RESET button
No
• TEST function
• RESET button
• STOP button
For safe operation of motors
with type of protection "Increased Safety"
1)
EU type test certificate number according to
guideline 94/9/EU (ATEX)
Ambient temperatures
Storage/transport
°C
-40 ... +80
Operation
°C
-25 ... +60
Temperature compensation
°C
+60
Permissible rated current
- Temperature inside cubicle 60 °C
%
100
Repeat terminals
• Coil repeat terminal
• Auxiliary contact repeat terminal
Not required
Not required
Degree of protection according to IEC 60529
IP202)
Touch protection according to IEC 61140
Finger-safe2)
Shock resistance with sine according to IEC 60068-2-27
Electromagnetic compatibility (EMC)
– Interference immunity
• Conductor-related interference
- Burst according to IEC 61000-4-4
(corresponds to degree of severity 3)
- Surge according to IEC 61000-4-5
(corresponds to degree of severity 3)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
• Field-related interference according to IEC 61000-4-3
(corresponds to degree of severity 3)
g/ms
15/11
kV
2 (power ports), 1 (signal ports)
kV
2 (line to earth), 1 (line to line)
kV
8 (air discharge), 6 (contact discharge)
V/m
10
Degree of severity A according to EN 55011 (CISPR 11) and EN 55022 (CISPR 22)
Electromagnetic compatiblity (EMC) –
Emitted interference
Resistance to extreme climates – air humidity
%
Installation altitude above sea level
100
See dimensional drawings
Dimensions
m
Up to 2000
Mounting position
Any
Type of mounting
Evaluation module: Stand-alone installation,
current measuring module size S00 to S3: Stand-alone installation,
current measuring module size S6 and S10/S12: Stand-alone installation and
mounting onto contactors
1) On request.
Siemens Industry, Inc.
Industrial Controls Catalog
2) Current measuring modules size S6 and S10/S12 with busbar connection
in conjunction with cover.
3/43
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Type – Overload relay of current measuring module
3RB29
3RB29
3RB29
3RB29
Size
S00/S0
S2/S3
S6
S10/S12
Width
45 mm
55 mm
120 mm
145 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3)
V
690
1000
Rated impulse withstand voltage Uimp
kV
6
8
Rated operational voltage Ue
V
690
1000
Type of current
• Direct current
• Alternating current
No
Yes, 50/60 Hz ± 5 % (other frequencies on request)
Set current
A
0.3 ... 3;
2.4 ... 25
Power loss per unit (max.)
W
0.5
Short-circuit protection
• With fuse without contactor
• With fuse and contactor
Safe isolation between main and auxiliary
conducting path according to IEC 60947-1
10 ... 100
20 ... 200
63 ... 630
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
V
6901)
Connection for main circuit
Straight-through
transformers
Screw terminal
Screw terminal
with box terminal / bus connection with box terminal /
/ straight-through transformer
bus connection
---
4 mm Allen screw
10 ... 12
5 mm Allen screw
20 ... 22
mm2
mm2
---
-2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
- Finely stranded with end sleeve
mm2
--
- Stranded
mm2
--
- AWG conductors, solid or stranded
AWG
--
- Ribbon cable conductors
(number x width x circumference)
mm
--
-With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
With 3RT19 55-4G box terminal:
2 × (max. 70),
1 × (16 ... 70)
With 3RT19 56-4G box terminal:
2 × (max. 120),
1 × (16 ... 120)
With 3RT19 55-4G box terminal:
2 × (max. 1/0),
1 × (6 ... 2/0)
With 3RT19 56-4G box terminal:
2 × (max. 3/0),
1 × (6 ... 250 kcmil)
With 3RT19 55-4G box terminal:
2 × (6 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 6 × 15.5 × 0.8)
With 3RT19 56-4G box terminal:
2 × (10 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ...
10 × 15.5 × 0.8)
M8 × 25
10 ... 14
M10 × 30
14 ... 24
16 ... 952)
25 ... 1202)
4 ... 250 kcmil
15
50 ... 2403)
70 ... 2403)
2/0 ... 500 kcmil
25
Electrical connection version
Screw terminal
• Terminal screw
• Tightening torque
• Conductor cross-sections (min./max.),
1 or 2 conductors
- Solid
- Finely stranded without end sleeve
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Solid with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Straight-through transformers
• Diameter of opening
• Conductor cross-section (max.)
- N YY
- H07RN-F
2 × (70 ... 240),
front clamping point only:
1 × (95 ... 300)
rear clamping point only:
1 × (120 ... 240)
2 × (2/0 ... 500 kcmil),
front clamping point only:
1 × (3/0 ... 600 kcmil)
rear clamping point only:
1 × (250 kcmil ... 500 kcmil)
2 × (20 × 24 × 0.5),
1 × (6 × 9 × 0.8 ...
20 × 24 × 0.5)
m m2
m m2
AWG
mm
--------
mm
7.5
14
25
--
mm2
2
4)
4)
4)
4)
120
70
---
Nm
mm
1) For grounded networks, otherwise 600 V.
2) When connecting cable lugs according to DIN 46235, use the
3RT19 56-4EA1 terminal cover for conductor cross-sections from 95 mm2
to ensure phase spacing.
3/44
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
3) When connecting cable lugs according to DIN 46234 for conductor crosssections from 240 mm2 as well as DIN 46235 for conductor cross-sections
from 185 mm2, use the 3RT19 56-4EA1 terminal cover to ensure phase
spacing.
4) On request.
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Type – Overload relay of evaluation module
3RB22, 3RB23
Size
S00 ... S10/S12
Width
45 mm
Auxiliary circuit
Number of NO contacts
2
Number of NC contacts
2
Auxiliary contacts – assignment
1 NO for the signal "tripped due to overload and/or thermistor",
1 NC for switching off the contactor
1 NO for the signal "tripped due to ground fault",
1 NC for switching off the contactor
or1)
1 NO for the signal "tripped due to overload and/or thermistor and/or ground fault",
1 NC for switching off the contactor
1 NO for overload warning,
1 NC for switching off the contactor
Rated insulation voltage Ui (degree of pollution 3)
V
300
Rated impulse withstand voltage Uimp
kV
4
• NC contact with alternating current AC-14/AC-15
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
- 400 V
- 600 V
- 690 V
A
A
A
A
A
A
A
6
6
6
3
1.5
• NO contact with alternating current AC-14/AC-15:
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
- 400 V
- 600 V
- 690 V
A
A
A
A
A
A
A
6
6
6
3
1.5
• NC, NO contact with direct current DC-13:
Rated operational current Ie at Ue:
- 24 V
- 60 V
- 110 V
- 125 V
- 250 V
A
A
A
A
A
2
0.55
0.25
0.3
0.2
• Continuous thermal current Ith
A
61)
Auxiliary contacts – Contact rating
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
2)
2)
2)
2)
Yes
Short-circuit protection
• With fuse
- gL/gG operational class
- Quick
A
A
6
• With miniature circuit-breaker (C-characteristic)
A
1.6
Safe isolation between main and auxiliary conducting path V
according to IEC 60947-1
300
2)
CSA, UL, and UR rated data
B300, R300
Auxiliary circuit – switching capacity
Connection of the auxiliary circuit
Screw terminal or spring-loaded terminals
Connection type
Screw terminal
• Terminal screw
Pozidriv size 2
• Tightening torque
Nm
0.8 ... 1.2
• Conductor cross-section (min./max.), 1 or 2 conductors
- S ol i d
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
mm2
mm2
mm2
mm2
AWG
1 × (0.5 ... 4), 2 × (0.5 ... 2.5)
-1 × (0.5 ... 2.5), 2 × (0.5 ... 1.5)
-2 × (20 ... 14)
1) The assignment of auxiliary contacts may be influenced by function
expansion modules.
2) On request.
Siemens Industry, Inc.
Industrial Controls Catalog
3/45
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Type – Overload relay of evaluation module
3RB22, 3RB23
Size
S00 ... S10/S12
Width
45 mm
Connection of the auxiliary circuit
Spring-loaded terminals
• Conductor cross-section (min./max.), 1 or 2 conductors
- Solid
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
mm2
mm2
mm2
mm2
AWG
2 × (0.25 ... 1.5)
-2 × (0.25 ... 1.5)
2 × (0.25 ... 1.5)
2 × (24 ... 16)
Rated insulation voltage Ui (degree of pollution 3)1)
V
300
Rated impulse withstand voltage Uimp1)
kV
4
• AC 50/60 Hz
V
24 ... 240
• DC
V
24 ... 240
Control and sensor circuit as well as analog output
Rated control supply voltage Us1)
Operating range1)
• AC 50/60 Hz
0.85 × Us min ≤ Us ≤ 1.1 × Us max
• DC
0.85 × Us min ≤ Us ≤ 1.1 × Us max
Rated output power1)
• AC 50/60 Hz
W
0.5
• DC
W
0.5
Mains buffering time1)
ms
200
Thermistor motor protection (PTC thermistor detector)2)
• Summation cold resistance
kΩ
≤ 1.5
• Operating value
kΩ
3.4 ... 3.8
• Return value
kΩ
1.5 ... 1.65
ms
500 ... 1000
mA
4 ... 20
Response time following ground fault detection
• Internal3)
Analog output3)
• Output signal
0 to 1.25 × Ie
4 mA corresponds to 0 × Ie
16.8 mA corresponds to 1.0 × Ie
20 mA corresponds to 1.25 × Ie
• Measuring range
Connection for the control and sensor circuit
as well as the analog output
Screw terminal or spring-loaded terminals
Connection type
Screw terminal
• Terminal screw
Pozidriv size 2
• Tightening torque
Nm
0.8 ... 1.2
• Conductor cross-section (min./max.), 1 or 2 conductors
- Solid
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
mm2
mm2
mm2
mm2
AWG
1 × (0.5 ... 4), 2 × (0.5 ... 2.5)
-1 × (0.5 ... 2.5), 2 × (0.5 ... 1.5)
-2 × (20 ... 14)
mm2
mm2
mm2
mm2
AWG
2 × (0.25 ... 1.5)
-2 × (0.25 ... 1.5)
2 × (0.25 ... 1.5)
2 × (24 ... 16)
Spring-loaded terminals
• Conductor cross-section (min./max.), 1 or 2 conductors
- Solid
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
1) Control circuit.
2) Sensor circuit.
3) In conjunction with corresponding function expansion module.
3/46
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Short-circuit protection with fuses for motor feeders
For short-circuit currents up to 50 kA at 400 to 690 V
Overload relays
Contactor
CLASS
690 V
5 and 10
Setting range
Type
20
Fuse links1)
LV HRC
Type 3NA
DIAZED
Type 5SB
NEOZED
Type 5SE
gL/gG operational class
30
Rated operational current Ie AC-3 in A at
400 V
500 V
690 V
400 V
500 V
690 V
400 V
500 V
690 V
Type of coordination2)
1
2
Size S00/S0
0.3 ... 3 A
3RT10 15
3RT10 16
3
3
3
3
3
3
2.4 ... 25 A
3RT10 15
3RT10 16
3RT10 17
7
9
12
5
6.5
9
4
5.2
6.3
3RT10 23
3RT10 24
3RT10 25
3RT10 26
9
12
17
25
6.5
12
17
18
3RT10 34
3RT10 35
25
25
25
25
3
3
3
3
3
3
3
3
3
3
3
3
35
35
20
20
7
9
10
5
6.5
9
4
5.2
6.3
7
9
9
5
6.5
9
4
5.2
6.3
35
35
35
20
20
20
5.2
9
13
13
9
12
16
16
6.5
12
16
16
5.2
9
13
13
-12
14
14
-12
14
14
-9
13
13
63
63
63
100
25
25
25
35
20
24
22.3
25
22.3
25
20
24
19.1
25
19.1
25
19.1
24
125
125
63
63
Size S2/S3
10 ... 100 A
3RT10 34
3RT10 35
3RT10 36
32
40
50
32
40
50
20
24
24
22.3
29.4
32.7
22.3
29.4
32.7
20
24
24
19.1
26.5
26.5
19.1
26.5
26.5
19.1
24
24
125
125
160
63
63
80
3RT10 44
3RT10 45
3RT10 46
65
80
95
65
80
95
47
58
58
49
53
59
49
53
59
47
53
58
41.7
45
50
41.7
45
50
41.7
45
50
200
200
200
125
160
160
3RT10 54
3RT10 55
100
--
100
--
100
--
81.7
100
81.7
100
81.7
100
69
90
69
90
69
90
355
355
315
315
3RT10 54
3RT10 55
3RT10 56
115
150
185
115
150
185
115
150
170
81.7
107
131
81.7
107
131
81.7
107
131
69
90
111
69
90
111
69
90
111
355
355
355
315
315
315
3RT10 64
3RT10 65
3RT10 66
225
265
300
225
265
300
225
265
280
160
188
213
160
188
213
160
188
213
135
159
180
135
159
180
135
159
180
500
500
500
400
400
400
3RT10 75
3RT10 76
400
500
400
500
400
450
284
355
284
355
284
355
240
300
240
300
240
300
630
630
400
500
3RT12 64
3RT12 65
3RT12 66
225
265
300
225
265
300
225
265
300
225
265
300
225
265
300
225
265
300
173
204
231
173
204
231
173
204
231
500
500
500
500
500
500
3RT12 75
3RT12 76
400
500
400
500
400
500
400
500
400
500
400
500
316
385
316
385
316
385
800
800
800
800
3TF683)
3TF693)
630
630
630
630
630
630
440
572
440
572
440
572
376
500
376
500
376
500
800
800
5004)
6304)
Size S6
20 ... 200 A
Size S10/S12
160 ... 630 A
1) Please observe operational voltage.
2) Coordination and short-circuit equipment according to EN 60947-4-1:
Type of coordination 1: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They do not need to be suitable for further operation
without repair and the renewal of parts.
Type of coordination 2: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They must be suitable for further operation.
There is a risk of contact welding.
3) Contactor cannot be mounted.
4) Please ensure that the maximum AC-3 operational current has sufficient
safety clearance from the rated current of the fuses.
Siemens Industry, Inc.
Industrial Controls Catalog
3/47
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Characteristic curves
The smallest current used for tripping is called the minimum
tripping current. According to IEC 60947-4-1, this current must
be within specified limits. The limits of the minimum tripping
current for the 3RB22/3RB23 solid-state overload relays for
symmetrical three-pole loads are between 105 % and 120 % of
the set current.
Tripping characteristics for 3-pole loads
1000
800
600
Tripping time
The tripping characteristics show the relationship between the
tripping time and tripping current as multiples of the set current
Ie and are given for symmetrical three-pole and two-pole loads
from the cold state.
3…5s
CLASS 10
5 … 10 s
CLASS 20
10 … 20 s
CLASS 30
20 … 30 s
The tripping characteristic for a three-pole overload relay from
the cold state (see illustration 1) only apply if all three phases are
simultaneously loaded with the same current. In the event of a
phase failure or a current unbalance of more than 40 %, the
3RB22/3RB23 solid-state overload relays switch off the contactor more quickly in order to minimize heating of the load in
accordance with the tripping characteristic for two-pole loads
from the cold state (see illustration 2).
Compared with a cold load, a load at operating temperature obviously has a lower temperature reserve. The tripping time of the
3RB22/3RB23 solid-state overload relays are reduced therefore
to about 30 % when loaded with the set current Ie for an
extended period.
20
CLASS 30
10
8
6
CLASS 20
CLASS 10
4
CLASS 5
2
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 1
Tripping characteristics for 2-pole loads
1000
800
600
Tripping time
Tripping time
200
40
The tripping times according to IEC 60947-4-1, tolerance band
E, are as follows for:
CLASS 5
400
s
100
80
60
The tripping characteristic starts with the minimum tripping
current and continues with higher tripping currents based on the
characteristics of the so-called trip classes (CLASS 10,
CLASS 20 etc.). The trip classes describe time intervals within
which the overload relays have to trip with 7.2 times the set
current Ie from the cold state for symmetrical three-pole loads.
Trip class
NSB0_01525
NSB0_01526
400
s
200
100
80
60
40
20
CLASS 30
10
8
6
CLASS 20
4
CLASS 10
2
CLASS 5
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 2
The above illustrations are schematic representations of
characteristic curves. The characteristic curves of the individual
3RB22/3RB23 solid-state overload relays can be requested from
Technical Assistance at the following e-mail address:
[email protected]
3/48
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Dimensional drawings
86
5
4
59
45
5
NSB0_01519
80
106
12
30
36
3RB22 83-4, 3RB23 83-4 evaluation module
3RB29 06-2BG1, 3RB29 06-2DG1 current measuring module
3RB29 06-2JG1 current measuring module
3RB29 56-2TG2 current measuring module
Siemens Industry, Inc.
Industrial Controls Catalog
3/49
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
3RB29 56-2TH2 current measuring module
3RB29 66-2WH2 current measuring module
3/50
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Schematics
Protection of single-phase motors
(not in conjunction with internal ground-fault detection)
3RB29 06-2.G1, 3RB29 56-2TG2
3RB29 56-2TH2, 3RB29 66-2WH2
Schematic representation of a possible application (3-phase)
Siemens Industry, Inc.
Industrial Controls Catalog
3/51
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Connections
Evaluation module
Function expansion module
Basic function s
I nputs
A1/A2
T1/T2
Y1/Y2
3RB22 83-4AA1
None
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2CA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2CB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AA0
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
Evaluation module
Function expansion module
Outputs
I (–) / I (+)
95/96 NC
05/06 NC
07/08 NO
3RB22 83-4AA1
None
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Overload warning
Overload warning
3RB29 85-2CA1
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection + ground
fault)
Overload warning
Overload warning
3RB29 85-2CB1
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Switching off the
contactor (ground
fault)
Signal
"ground fault trip"
3RB29 85-2AA0
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Overload warning
Overload warning
3RB29 85-2AA1
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection + ground
fault)
Overload warning
Overload warning
3RB29 85-2AB1
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Switching off the
contactor (ground
fault)
Signal
"ground fault trip"
3RB22 83-4AC1
3RB23 83-4AA1
3RB23 83-4AC1
3RB22 83-4AC1
3RB23 83-4AA1
3RB23 83-4AC1
3/52
97/98 NO
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
Accessories
Overview
Overload relays for standard applications
Overload relays for high-feature applications
The following accessories are available for the 3RB20/3RB21
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as single units without
a terminal bracket)
• One mechanical RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminal blocks for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
• Push-in lugs for screw mounting the size S00 to S3 current
measuring modules
Selection and ordering data
Version
Size
Order No.
List
Price $
Weight
per PU
approx.
kg
Terminal brackets for stand-alone installation1)
For separate mounting of the overload relays; screw and
snap-on mounting onto TH35 standard mounting rail
S00
3RB29 13-0AA1
0.060
S0
3RB29 23-0AA1
0.080
Resetting plungers, holders and formers
S00 ...
S10/S12
3RU19 00-1A
0.038
Pushbuttons with extended stroke
(12 mm), IP65, Ø 22 mm
3SB30 00-0EA11
0.021
Extension plungers
For compensation of the distance between a pushbutton
and the unlatching button of the relay
3SX1 335
0.004
Complete mechanical reset assembly
3SBES-RESET
3RB29 .3-0AA1
Mechanical RESET2)
3RU19 00-1A
with pushbutton and
extension plunger
Cable releases with holder for RESET2)
For holes with Ø 6.5 mm
in the mounting plate;
max. control panel thickness 8 mm
S00 ...
S10/S12
• Length 400 mm
3RU19 00-1B
0.063
• Length 600 mm
3RU19 00-1C
0.073
3RU19 00-1.
1) Only for 3RB20/3RB21.
2) Only for 3RB20/3RB21. The accessories are identical to those of the
3RU11 thermal overload relays.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
3/53
Overload Relays
3RB2 Solid-State Overload Relays
Accessories
Version
Size
Order No.
List
Price $
Pack
Units
Weight per
PU approx.
kg
Sealable covers
For covering the setting knobs
• For 3RB20/3RB21
S00 ...
S10/S12
3RB29 84-0
10 units
0.020
• For 3RB22/3RB23
–
3RB29 84-2
10 units
0.050
• Length 55 mm1)
S3
3RT19 46-4EA1
0.037
• Length 100 mm
S6
3RT19 56-4EA1
0.067
• L e ng th 12 0 m m
S 10 /S 1 2
3RT19 66-4EA1
0.124
Terminal covers
Covers for cable lugs and rail connection
3RT19 46-4EA1
Covers for box terminals
• Length 20.6 mm1)
S2
3RT19 36-4EA2
0.016
• Length 20.8 mm1)
S3
3RT19 46-4EA2
0.023
• Length 25 mm
S6
3RT19 56-4EA2
0.028
• Length 30 mm
S10/S12
3RT19 66-4EA2
0.038
S6
3RT19 56-4EA3
0.021
S10/S12
3RT19 66-4EA3
0.062
up to 70 mm2 2/0 AWG
S62)
3RT19 55-4G
0.237
up to 120mm2 4/0 AWG
S6
3RT19 56-4G
0.270
up to 240mm2 500 mcm
S10/S12
3RT19 66-4G
0.676
For screw fixing of 3RB22/3RB23
overload relays
--
3RP19 03
10 units
0.002
For screw mounting of 3RB29 06 current
measuring modules
(2 units are required per module)
S00 ... S3
3RB19 00-0B
10 units
0.100
Covers for screw connections
between contactor and overload relay,
3RT19 36-4EA2
without box terminals
The figures show
mounting on the contactor (1 unit required per combination)
Box terminal blocks
For round and ribbon cables
For conductor cross-sections,
see LV 1 T "Technical Specifications"
3RT19 5.-4G
Push-in lugs
3RP19 03
3RB19 00-0B
For more accessories (tools for spring-loaded terminals and
labeling plates), see page 5/56.
1) Only for 3RB20/3RB21. The accessories are identical to those of the
3RU11 thermal overload relays.
2) In the scope of supply for 3RT10 54-1 contactors (55 kW).
3/54
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
Accessories
Overview
Overload relays for standard applications
Overload relays for High-Feature applications
The following accessories are available for the 3RB20/3RB21
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as stand-alone
installation without a terminal bracket)
• One mechanical remote RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminal blocks for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
Technical specifications
Terminal brackets for stand-alone installation
Type
3RB29 13-0AA1
3RB29 23-0AA1
For overload relay
3RB20 16, 3RB21 13
3RB20 26, 3RB21 23
Size
S00
S0
Type of mounting
For screw and snap-on mounting onto TH35 standard mounting rail
Connection for main circuit
Screw terminal
Connection type
Screw terminal
• Terminal screw
Pozidriv size 2
Nm
0.8 ... 1.2
2 ... 2.5
- So l i d
mm 2
1 × (0.5 ... 2.5),
Max. 1 × (... 4)
1 × (1 ... 6),
Max. 1 × (... 10)
• Tightening torque
• Conductor cross-section (min./max.), 1 or 2 conductors
- Finely stranded without end sleeve
mm2
--
--
- F inely stranded with end sleeve
mm 2
1 × (0.5 ... 2.5)
1 × (1 ... 6)
- Stranded
m m2
1 × (0.5 ... 2.5),
Max. 1 × (... 4)
1 × (1 ... 6),
Max. 1 × (... 10)
- AWG conductors, solid or stranded
AWG
1 × (18 ... 14)
1 × (14 ... 10)
Siemens Industry, Inc.
Industrial Controls Catalog
3/55
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Overview
• The SIMOCODE pro system offers functionally graded and
space-saving solutions for each customer application
• The replacement of the control circuit hardware with integrated control functions decreases the number of hardware
components and wiring required and in this way limits stock
keeping costs and potential wiring errors
• The use of solid-state full motor protection permits better utilization of the motors and ensures long-term stability of the tripping characteristic and reliable tripping even after years of
service
Multifunctional, solid-state full motor protection
for rated motor currents up to 820 A
SIMOCODE pro V with current/voltage measuring module,
expansion modules and operator panel with display
SIMOCODE pro is a flexible, modular motor management system for motors with constant speeds in the low-voltage performance range. It optimizes the connection between I&C and
motor feeder, increases plant availability and allows significant
savings to be made for startup, operation and maintenance of a
system.
When SIMOCODE pro is installed in the low-voltage switchboard, it is the intelligent interface between the higher-level automation system and the motor feeder and includes the
following:
• Multifunctional, solid-state full motor protection which is independent of the automation system
• Integrated control functions instead of hardware for the motor
control
• Detailed operating, service and diagnostics data
• Open communication through PROFIBUS DP, the standard for
fieldbus systems
SIMOCODE ES is the software package for SIMOCODE pro
parameterization, start-up and diagnostics.
Benefits
General customer benefits
• Integrating the whole motor feeder into the process control by
means of a bus significantly reduces the wiring outlay between the motor feeder and PLC
• Decentralization of the automated processes by means of
configurable control and monitoring functions in the feeder
saves resources in the automation system and ensures full
functionality and protection of the feeder even if the I&C or bus
system fails
• The acquisition and monitoring of operational, service and diagnostics data in the feeder and process control system increases plant availability as well as maintenance and servicefriendliness
• The high degree of modularity allows users to perfectly implement their plant-specific requirements for each motor feeder
3/56
SIMOCODE pro offers comprehensive protection of the motor
feeder by means of a combination of different, multi-step and delayable protection and monitoring functions:
• Inverse-time delayed solid-state overload protection
(Class 5 ... 40)
• Thermistor motor protection
• Phase failure / unbalance protection
• Stall protection
• Monitoring of adjustable limit values for the motor current
• Voltage and power monitoring
• Monitoring of the power factor (motor idling/load shedding)
• Ground-fault monitoring
• Temperature monitoring, e. g. over PT100/PT1000
• Monitoring of operating hours, downtime and number of starts
etc.
Recording of measuring curves
SIMOCODE pro can record measuring curves and therefore is
able, for example, to present the progression of motor current
during motor start-up.
Flexible motor control implemented with integrated control
functions
(instead of comprehensive hardware interlocks)
Many predefined motor control functions have already been integrated into SIMOCODE pro, including all necessary logic operations and interlocks:
• Overload relays
• Direct-on-line and reversing starters
• Star/delta starters (also with direction reversal)
• Two speed, 2 winding (pole-changing switch); also with direction reversal
• Two speed, 1 winding (also with direction reversal)
• Positioner actuation
• Solenoid valve actuation
• Actuation of a circuit breaker
• Soft starter actuation (also with direction reversal)
These control functions are predefined in SIMOCODE pro and
can be freely assigned to the inputs and outputs of the device
(including PROFIBUS DP).
These predefined control functions can also be flexibly adapted
to each customized configuration of a motor feeder by means of
freely configurable logic modules (truth tables, counters, timers,
edge evaluation ...) and with the help of standard functions
(power failure monitoring, emergency start, external faults ...),
without additional auxiliary relays being necessary in the control
circuit.
SIMOCODE pro makes a lot of additional hardware and wiring in
the control circuit unnecessary which results in a high level of
standardization of the motor feeder in terms of its design and circuit diagrams.
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Detailed operational, service and diagnostics data
SIMOCODE pro makes different operational, service and diagnostics data available and helps to detect potential faults in time
and to prevent them by means of preventative measures. In the
event of a malfunction, a fault can be diagnosed, localized and
rectified very quickly – there are no or very short downtimes.
Operating data
• Motor switching state derived from the current flow in the main
circuit
• All phase currents
• All phase voltages
• Active power, apparent power and power factor
• Phase unbalance and phase sequence
• Time to trip
• Motor temperature
• Remaining cooling time etc.
Service data
• Motor operating hours
• Motor stop times
• Number of motor starts
• Number of overload trips
• Consumed power
• Internal comments stored in the device etc.
Diagnostics data
• Numerous detailed early warning and fault messages
• Internal device fault logging with time stamp
• Time stamping of freely selectable status, alarm or fault messages etc.
Communication
SIMOCODE pro is equipped with an integral PROFIBUS DP interface (SUB-D or terminal connection) and can therefore replace all individual wiring (including marshalling racks), which
would usually be required for exchanging data with the higherlevel automation system, with a single 2-wire cable.
SIMOCODE pro supports among other things:
• Baud rates up to 12 Mbit/s
• Automatic baud rate detection
• Communication with up to 3 masters
• Time synchronization over PROFIBUS (SIMATIC S7)
• Time stamp with high timing precision (SIMATIC S7)
• Cyclic services (DPV0) and acyclic services (DPV1)
• DPV1 communication after the Y-Link etc.
SIMOCODE pro combines all the necessary functions for the motor feeder in a compact system.
Siemens Industry, Inc.
Industrial Controls Catalog
3/57
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Application
SIMOCODE pro is often used for automated processes where
plant downtimes are very expensive (e. g. steel or cement industry) and where it is important to prevent plant downtimes through
detailed operational, service and diagnostics data or to localize
the fault very quickly in the event of a fault.
SIMOCODE pro is modular and space-saving and suited especially for operation in motor control centers in the process industry and for power plant technology.
Applications
Protection and control of motors
• In hazardous areas for types of protection
EEx e/d according to ATEX directive 94/9/EC
• With heavy starting (paper, cement, metal and water
industries)
• In high-availability plants (chemical, oil, raw material processing industry, power plants)
Industries
Today, SIMOCODE pro is mainly used in the chemical (incl. oil
and gas), steel, water, paper, pharmaceutical, cement, and
glass industry. It is also used for applications in power plants
and large diamond, gold and platinum mines. Based on the experience made with the predecessor system SIMOCODE-DP,
SIMOCODE pro has been tailored even more specifically to the
requirements of these industries.
An essential requirement in these industries is the availability of
the motors and thus the availability of the whole process. Plant
downtimes caused by faults frequently result in high costs. For
this reason, it is very important to detect potential faults early on
and to initiate targeted countermeasures. SIMOCODE pro offers
users an up-to-date motor management system based on years
of experience.
Selection and ordering data
Version
Current
setting
Width
A
mm
Screw terminals
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
SIMOCODE pro
SIMOCODE pro C, basic units 1
PROFIBUS DP interface, 12 Mbit/s, RS 485
4 I/3 O freely assignable, input for thermistor
connection, monostable relay outputs,
rated control supply voltage Us:
• 24 V DC
3UF7 000-1AB00-0
1
1 unit
0.350
• 110 ... 240 V AC/DC
3UF7 000-1AU00-0
1
1 unit
0.350
• 24 V DC
3UF7 010-1AB00-0
1
1 unit
0.350
• 110 ... 240 V AC/DC
3UF7 010-1AU00-0
1
1 unit
0.350
3UF7 000-1A.00-0
SIMOCODE pro V, basic units 2
PROFIBUS DP interface, 12 Mbit/s, RS 485
4 I/3 O freely assignable, input for thermistor
connection, monostable relay outputs,
can be expanded with expansion modules,
rated control supply voltage Us:
3UF7 010-1A.00-0
Current measuring modules
Straight-through
transformers
Busbar connections
0.3 ... 3
2.4 ... 25
45
45
3UF7 100-1AA00-0
3UF7 101-1AA00-0
1
1
1 unit
1 unit
0.100
0.150
10 ... 100
20 ... 200
55
120
3UF7 102-1AA00-0
3UF7 103-1AA00-0
1
1
1 unit
1 unit
0.350
0.600
20 ... 200
63 ... 630
120
145
3UF7 103-1BA00-0
3UF7 104-1BA00-0
1
1
1 unit
1 unit
1.000
1.750
3UF7 100-1AA00-0
3/58
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Version
Current
setting
Width
A
mm
Screw terminals
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
SIMOCODE pro
Current/voltage measuring modules
Voltage measuring up to 690 V2)
if required in connection with a decoupling module
Straight-through
transformers
Busbar connections
3UF7 110-1AA00-0
0.3 ... 3
2.4 ... 25
45
45
3UF7 110-1AA00-0
3UF7 111-1AA00-0
1
1
1 unit
1 unit
0.150
0.200
10 ... 100
20 ... 200
55
120
3UF7 112-1AA00-0
3UF7 113-1AA00-0
1
1
1 unit
1 unit
0.400
0.700
20 ... 200
63 ... 630
120
145
3UF7 113-1BA00-0
3UF7 114-1BA00-0
1
1
1 unit
1 unit
1.000
1.750
3UF7 150-1AA00-0
1
1 unit
0.150
3UF7 200-1AA00-0
1
1 unit
0.100
3UF7 210-1AA00-0
1
1 unit
0.150
Decoupling modules
For connecting upstream from a current/voltage
measuring module on the system interface when
using voltage detection in non-earthed networks
3UF7 150-1AA00-0
Operator panels
Installation in control cabinet door or front plate, for
plugging into basic unit, 10 LEDs for status indication and user-assignable buttons for controlling the
motor
3UF7 200-1AA00-0
Operator panels with display
for SIMOCODE pro V1)
Installation in control cabinet door or front plate, for
plugging into basic unit 2, 7 LEDs for status indication and user-assignable buttons for controlling the
motor, multilingual display, e. g. for indication of
measured values, status information or fault
messages
3UF7 210-1AA00-0
1)
Only possible with basic unit 2, product version E03 and higher (from 12/2006).
2) Voltage measurement on ungrounded or high resistance grounded systems
(HRG) require a decoupling module (3UF7 150-1AA00-0).
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: ICE
3/59
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Screw terminals
Version
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
Expansion modules
Note:
Expansion modules can only be used in combination with basic unit 2! A total of
up to 5 expansion modules can be connected in any order to one basic unit.
When an operator panel with display and/or a decoupling module is used, more
restrictions on the number of expansion modules connectable per basic unit
must be observed!
Digital modules
4 binary inputs and 2 relay outputs,
Up to 2 digital modules can be connected per
basic unit 2
Relay outputs
Input voltage
Monostable
24 V DC
3UF7 300-1AB00-0
1
1 unit
0.150
110 ... 240 V AC/DC
3UF7 300-1AU00-0
1
1 unit
0.150
24 V DC
3UF7 310-1AB00-0
1
1 unit
0.150
110 ... 240 V AC/DC
3UF7 310-1AU00-0
1
1 unit
0.150
3UF7 400-1AA00-0
1
1 unit
0.150
3UF7 500-1AA00-0
1
1 unit
0.150
3UF7 700-1AA00-0
1
1 unit
0.150
Bistable
3UF7 300-1AU00-0
Analog modules
2 inputs (passive) for input
and 1 output for output of 0/4 ... 20 mA signals,
max. 1 analog module can be connected per basic
unit 2
3UF7 400-1AA00-0
Ground-fault modules
1 input for connecting a summation current
transformer 3UL22, up to 1 ground-fault module
can be connected per basic unit 2
3UF7 500-1AA00-0
Temperature modules
3 inputs for connecting up to 3 analog temperature
sensors, up to 1 temperature module can be connected per basic unit 2
3UF7 700-1AA00-0
3/60
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Accessories
Version
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
Connection cables (essential accessory)
Connection cables
In different lengths for connecting basic unit, current measuring module, current/voltage measuring
module, operator panel or expansion modules or
decoupling module:
3UF7 932-0AA00-0
• Length 0.025 m (flat)
Note: Only suitable for connecting basic unit 2
to its expansion modules or for connecting expansion modules to each other; only when the front
plates finish at the same height!
3UF7 930-0AA00-0
1
1 unit
0.010
• Length 0.1 m (flat)
• Length 0.3 m (flat)
• Length 0.5 m (flat)
3UF7 931-0AA00-0
3UF7 935-0AA00-0
3UF7 932-0AA00-0
1
1
1
1 unit
1 unit
1 unit
0.010
0.020
0.020
• Length 0.5 m (round)
• Length 1.0 m (round)
• Length 2.5 m (round)
3UF7 932-0BA00-0
3UF7 937-0BA00-0
3UF7 933-0BA00-0
1
1
1
1 unit
1 unit
1 unit
0.050
0.100
0.150
For PC/PG communication with SIMOCODE pro
through the system interface, for connecting to the
serial interface of the PC/PG
3UF7 940-0AA00-0
1
1 unit
0.150
USB/serial adapters
To connect an RS 232 PC cable
to the USB port of a PC,
we recommend using modular safety system
3RK3, soft starter 3RW44,
ET 200S/ECOFAST/ET 200pro motor starter,
AS-i safety monitor, AS-i analyzer in conjunction
with SIMOCODE pro 3UF7
3UF7 946-0AA00-0
1
1 unit
0.150
The memory module enables the complete parameter assignment of a system to be saved and
transferred to a new system, e. g. when a device is
replaced, without the need for additional aids or
detailed knowledge of the the system interface
3UF7 900-0AA00-0
1
1 unit
0.010
For system interface
3UF7 950-0AA00-0
1
5 units
0.100
For assigning the PROFIBUS addresses without
using a PC/PG
On SIMOCODE pro through the system interface
3UF7 910-0AA00-0
1
1 unit
0.030
For external connection of the system interface
Outside, for example, a control cabinet
3UF7 920-0AA00-0
1
1 unit
0.030
3UF7 922-0AA00-0
1
1 unit
0.150
PC cables and adapters
3UF7 940-0AA00-0
Memory modules
3UF7 900-0AA00-0
Interface covers
3UF7 950-0AA00-0
Addressing plugs
3UF7 910-0AA00-0
Door adapters
3UF7 920-0AA00-0
Adapters for operator panel
The adapter enables the smaller 3UF7 20 operator
panel from SIMOCODE pro to be used in a front
panel cutout in which previously, e. g. after a
change of system, a larger 3UF5 2 operator panel
from SIMOCODE-DP had been used; degree of
protection IP54
3UF7 922-0AA00-0
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: ICE
3/61
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Version
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
Labeling strips
3UF7 925-0AA02-0
• For pushbuttons of the 3UF7 20 operator panel
3UF7 925-0AA00-0
100
400 units
15.000
• For pushbuttons of the 3UF7 21 operator panel with
display
3UF7 925-0AA01-0
100
600 units
15.000
• For LEDs of the 3UF7 20 operator panel
3UF7 925-0AA02-0
100
1200 units
15.000
• Can be used with 3UF7 1.0, 3UF7 1.1 and
3UF7 1.2
3RB19 00-0B
100
10 units
0.100
• Can be used with 3UF7 0, 3UF7 3, 3UF7 4, 3UF7 5
and 3UF7 7
3RP19 03
1
10 units
0.002
• Length 100 mm, can be used for
3UF7 1.3-1BA00-0
3RT19 56-4EA1
1
1 unit
0.070
• Length 120 mm, can be used for
3UF7 1.4-1BA00-0
3RT19 66-4EA1
1
1 unit
0.130
• Length 25 mm, can be used for 3UF7 1.3-1BA00-0
3RT19 56-4EA2
1
1 unit
0.030
• Length 30 mm, can be used for 3UF7 1.4-1BA00-0
3RT19 66-4EA2
1
1 unit
0.040
3RT19 56-4EA3
1
1 unit
0.020
3RT19 66-4EA3
1
1 unit
0.060
Note: Pre-punched labeling strips for user-specific
printing using the free inscription software "SIRIUS
Label Designer" on a laser printer.
Note the software version!
Download from
http://www.siemens.com/simocode.
Push-in lugs
For screw fixing
e. g. on mounting plate, 2 units required per
device
3RB19 00-0B
Terminal covers
Covers for cable lugs and busbar connections
3RT19 56-4EA1
3RT19 56-4EA2
Covers for box terminals
Covers for screw terminals
between contactor and current measuring module
or current/voltage measuring module for direct
mounting
• Can be used for 3UF7 1.3-1BA00-0
• Can be used for 3UF7 1.4-1BA00-0
Box terminal blocks
For round and ribbon cables
• Up to 70 mm2, can be used for 3UF7 1.3-1BA00-0
3RT19 55-4G
1
1 unit
0.230
• Up to 120 mm2, can be used for 3UF7 1.3-1BA00-0
3RT19 56-4G
1
1 unit
0.260
• Up to 240 mm2, can be used for 3UF7 1.4-1BA00-0
3RT19 66-4G
1
1 unit
0.676
3RT19 5.-4G
Bus terminations
Bus termination module with separate supply voltage for
terminating the bus following the last unit on the bus
line. Supply voltage:
• 115/230 V AC
3UF1 900-1KA00
1
1 unit
0.286
• 24 V DC
3UF1 900-1KB00
1
1 unit
0.192
System manuals
SIMOCODE pro
With token fee,
languages:
• German
3UF7 970-0AA01-0
1
1 unit
0.850
• English
3UF7 970-0AA00-0
1
1 unit
0.850
• French
3UF7 970-0AA02-0
1
1 unit
0.850
3UF7 970-0AA01-0
3/62
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Version
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
PCS 7 function block library for SIMOCODE pro
For integrating SIMOCODE pro into the PCS 7
process control system
3UF7 982-0AA00-0
Siemens Industry, Inc.
Industrial Controls Catalog
• PCS 7 function block library for SIMOCODE pro,
V6.0
Scope of supply:
AS modules and faceplates for integrating
SIMOCODE pro into the PCS 7 process control system,
for PCS 7 Version V6.0
engineering software for one engineering station (single
license) including runtime software for execution of the
AS module in an automation system (single license),
English/French/German,
Type of delivery: CD incl. electronic documentation
3UF7 982-0AA00-0
1
1 unit
0.240
• PCS 7 function block library for SIMOCODE pro,
V6.1
Scope of supply:
AS modules and faceplates for integrating
SIMOCODE pro into the PCS 7 process control system,
for PCS 7 Version V6.1
engineering software for one engineering station (single
license) including runtime software for execution of the
AS module in an automation system (single license),
English/French/German,
Type of delivery: CD incl. electronic documentation
3UF7 982-0AA02-0
1
1 unit
0.240
• PCS 7 SIMOCODE pro function block library, V7.0
Scope of supply:
AS modules and faceplates for integrating
SIMOCODE pro into the PCS 7 process control system,
for PCS 7 Version V7.0
engineering software for one engineering station (single
license) including runtime software for execution of the
AS module in an automation system (single license),
English/French/German,
Type of delivery: CD incl. electronic documentation
3UF7 982-0AA10-0
1
1 unit
0.240
• AS modules for integrating SIMOCODE pro
in the PCS 7 process control system
for PCS 7-Version V6.x
Runtime software for execution of the AS module in an
automation system (single license),
Type of delivery: license without software and
documentation
3UF7 982-0AA01-0
1
1 unit
0.001
• AS modules for integrating SIMOCODE pro
in the PCS 7 process control system
for PCS 7-Version V7.x
Runtime software for execution of the AS module in an
automation system (single license),
Type of delivery: license without software and
documentation
3UF7 982-0AA11-0
1
1 unit
0.001
• Upgrade for the PCS 7 function block library
SIMOCODE pro, V6.0 or V6.1
on Version SIMOCODE pro V7.0
For integrating SIMOCODE pro into the PCS 7 process
control system,
for PCS 7 Version V7.0 (single license),
English/French/German,
Type of delivery: CD incl. electronic documentation
3UF7 982-0AA13-0
1
1 unit
0.240
Product Category: ICE
3/63
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Version
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET, M)
Weight
per PU
approx.
kg
SIMOCODE ES 2007 Basic
Floating license for one user
E-SW, software and documentation on CD,
3 languages (English/French/German),
communication through the system interface
• License key on USB stick, Class A
3ZS1 312-4CC10-0YA5
1
1 unit
0.230
3ZS1 312-4CC100YA5
SIMOCODE ES 2007 Standard
Floating license for one user
E-SW, software and documentation on CD,
3 languages (English/French/German),
communication through the system interface
• License key on USB stick, Class A
3ZS1 312-5CC10-0YA5
1
1 unit
0.230
Upgrade for SIMOCODE ES 2004 and later
Floating license for one user,
E-SW, software and documentation on CD,
license key on USB stick, Class A,
3 languages (English/French/German),
communication through the system interface
3ZS1 312-5CC10-0YE5
1
1 unit
0.230
Powerpack for SIMOCODE ES 2007 Basic
Floating license for one user,
E-SW, software and documentation on CD,
license key on USB stick, Class A,
3 languages (English/French/German),
communication through the system interface
3ZS1 312-5CC10-0YD5
1
1 unit
0.230
Software Update Service
For 1 year with automatic extension,
assuming the current software version is in use,
E-SW, software and documentation on CD,
communication through the system interface
3ZS1 312-5CC10-0YL5
1
1 unit
0.230
SIMOCODE ES 2007 Premium
Floating license for one user
E-SW, software and documentation on CD,
3 languages (English/French/German),
communication through PROFIBUS or the system
interface
3/64
• License key on USB stick, Class A
3ZS1 312-6CC10-0YA5
1
1 unit
0.230
Upgrade for SIMOCODE ES 2004 and later
Floating license for one user,
E-SW, software and documentation on CD,
license key on USB stick, Class A,
3 languages (English/French/German),
communication through PROFIBUS of the system
interface
3ZS1 312-6CC10-0YE5
1
1 unit
0.230
Powerpack for SIMOCODE ES 2007 Standard
Floating license for one user,
E-SW, software and documentation on CD,
license key on USB stick, Class A,
3 languages (English/French/German),
communication through PROFIBUS or the system
interface
3ZS1 312-6CC10-0YD5
1
1 unit
0.230
Software Update Service
For 1 year with automatic extension,
assuming the current software version is in use,
E-SW, software and documentation on CD,
communication through PROFIBUS or the system
interface
3ZS1 312-6CC10-0YL5
1
1 unit
0.230
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Technical specifications
General data applicable to the basic units, current measuring
modules, current/voltage measuring modules,
expansion modules, decoupling module and operator panel
Permissible ambient temperature
• During operation
• Storage and transport
Installation height above sea level
• Permissible ambient temperature max. +50 °C
(no protective separation)
• Permissible ambient temperature max. +40 °C
(no protective separation)
°C
°C
-25 ... +601)
-40 ... +802)
m
m
≤ 2000
≤ 3000
m
≤ 4000
Degree of protection (acc. to IEC 60529)
• All components,
(except for current measuring modules or current/voltage measuring
modules for busbar connection, operator panel and door adapter)
• Current measuring modules or current/voltage measuring module with
busbar connection
• Operator panel (front) and door adapter (front) with cover
Shock resistance (sine pulse)
IP20
IP00
IP54
g/ms
Mounting position
Frequency
Immunity to electromagnetic interferences (acc. to IEC 60947-1)
• Line-induced interference, burst acc. to IEC 61000-4-4
• Line-induced interference, high frequency acc. to IEC 61000-4-6
• Line-induced interference, surge acc. to IEC 61000-4-5
• Electrostatic discharge, ESD acc. to IEC 61000-4-2
• Field-related interference acc. to IEC 61000-4-3
Immunity to electromagnetic interference (acc. to IEC 60947-1)
• Line-conducted and radiated interference emission
Protective separation acc. to IEC 60947-1, Annex N
15/11
Any
Hz
50/60 ±5 %
kV
kV
V
kV
kV
kV
kV
V/m
Corresponds to degree of severity 3
2 (power ports)
1 (signal ports)
10
2 (line to earth)
1 (line to line)
8 (air discharge)
63) (contact discharge)
10
EN 55011/EN 55022 (CISPR 11/CISPR 22)
(corresponds to degree of severity A)
All circuits in SIMOCODE pro are safely separated from each other acc. to
IEC 60947-1, they are designed with doubled creepage paths and
clearances
In this context, compliance with the instructions in the test report "Protective
separation" No. 2668 is required.
Basic units
Mounting
Display
• Red/green/yellow LED "DEVICE"
• Green "BUS" LED
• Red "GEN. FAULT" LED
Test/Reset buttons
System interface
• Front
• Bottom
PROFIBUS DP interface
1)
For 3UF7 21: 0 ... +60 °C.
2)
For 3UF7 21: -20 ... +70 °C.
3)
For 3UF7 21: 4 kV.
Siemens Industry, Inc.
Industrial Controls Catalog
Snap-on mounting onto TH 35 standard mounting rail or
screw fixing with additional push-in lugs
•
•
•
•
•
•
Green: "Ready"
Red: "Function test not OK; device is disabled"
Yellow:"Memory module or addressing plug detected"
Off: "No control supply voltage"
Continuous light: "Communication with PLC/PCS"
Flashing: "Baud rate recognized/communicating with PC or programming
device"
• Continuous light/flashing: "Feeder fault", e. g. overload trip
• Resets the device after tripping
• Function test
• Operation of a memory module or addressing plug
Connection of an operator panel or expansion modules; the memory module, addressing plug or a PC cable can also be connected to the system
interface for parameterizing
Connection of a current measuring module or current/voltage measuring
module
Connection of the PROFIBUS DP cable through terminal connection or
through a 9-pin sub D socket
3/65
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Basic units
Control circuit
Rated control supply voltage Us (acc. to EN 61131-2)
110 ... 240 V AC/DC; 50/60 Hz
24 V DC
Operating range
0.85 ... 1.1 x Us
0.80 ... 1.2 × Us
Power consumption
• Basic unit 1 (3UF7 000)
• Basic unit 2 (3UF7 010)
incl. two expansion modules connected to basic unit 2
7 VA/5 W
10 VA/7 W
5W
7W
Rated insulation voltage Ui
V
300 (at degree of pollution 3)
Rated impulse withstand voltage Uimp
kV
4
Relay outputs
• Number
• Auxiliary contacts of the 3 relay outputs
• Specified short-circuit protection for auxiliary contacts
(relay outputs)
• Rated uninterrupted current
• Rated switching capacity
A
Inputs (binary)
3 monostable relay outputs
Floating NO contacts (NC contact response can be parameterized with
internal signal conditioning), 2 relay outputs are jointly and 1 relay output is
separately connected to a common potential; they can be freely assigned to
the control functions (e. g. for line, star and delta contactors and for signaling the operating state)
• Fuse links, gL/gA operational class 6 A, quick-acting 10 A (IEC 60947-5-1)
• Miniature circuit breaker 1.6 A, C characteristic (IEC 60947-5-1)
• Miniature circuit breaker 6 A, C characteristic (Ik < 500 A)
6
AC-15
6 A/24 V AC
6 A/120 V AC
3 A/230 V AC
DC-13
2 A/24 V DC
0.55 A/60 V DC
0.25 A/125 V DC
4 inputs supplied internally by the device electronics (24 V DC) and connected to a common potential for acquiring process signals (e. g. local control station, key-operated switch, limit switch, ...), freely assignable to the
control functions
Thermistor motor protection (binary PTC)
• Summation cold resistance
• Response value
• Return value
kΩ
kΩ
kΩ
≤ 1.5
3.4 ... 3.8
1.5 ... 1.65
Conductor cross-sections
• Tightening torque
• Solid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
Nm
mm2
mm2
AWG
AWG
0.8 ... 1.2
1 × (0.5 ... 4.0); 2 × (0.5 ... 2.5)
1 × (0.5 ... 2.5); 2 × (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
Current measuring modules or
current/voltage measuring modules
Mounting
• Current setting Ie = 0.3 ... 3 A; 2.4 ... 25 A; 10 ... 100 A
(3UF7 1.0, 3UF7 1.1, 3UF7 1.2)
• Current setting Ie = 20 ... 200 A (3UF7 103, 3UF7 113)
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Snap-on mounting onto 35 mm standard mounting rail,
screw fixing on mounting plate or
direct fixing on contactor
Screw fixing on mounting plate or
direct fixing on contactor
• Current setting Ie = 63 ... 630 A (3UF7 104, 3UF7 114)
System interface
For connection to a basic unit or decoupling module
Main circuit
3UF7 1.0
3UF7 1.1
3UF7 1.2
3UF7 1.3
3UF7 1.4
2.4 ... 25
10 ... 100
20 ... 200
63 ... 630
Current setting Ie
A
0.3 ... 3
Rated insulation voltage Ui
(degree of pollution 3)
V
6901)
Rated operational voltage Ue
V
690
Rated impulse withstand voltage Uimp
kV
62)
Rated frequency
Hz
50/60
Type of current
Three-phase current
Short-circuit
Additional short-circuit protection is required in main circuit
%
±3
Typical voltage measuring ranges
• Phase-to-phase voltage/line-to-line voltage (e. g. UL1 L2)
V
• Phase voltage (e. g. UL1)
V
110 ... 690
(only the phase voltages are available in SIMOCODE pro as measured values)
65 ... 400
%
±3 (typical)
%
±5 (typical)
%
±5 (typical)
Accuracy of current measurement (in the range 1 x minimum
current setting Iu to 8 x max. current setting Io)
Accuracy
• Of voltage measurement
(phase voltage UL in the range 230 ... 400 V)
• Of power factor measurement (in the rated load range power factor =
0.4 ... 0.8)
• Of apparent power measurement (in the rated load range)
Notes on voltage measurement
• In non-grounded networks or in networks with integrated
insulation measurement or monitoring
• Feeder lines for voltage measurement
1)
For 3UF7 103 or 3UF7 104 up to 1000 V.
3/66
In these networks the current/voltage measuring module can be used only
with an upstream decoupling module on the system interface.
In the feeder lines from the main circuit for voltage measurement of
SIMOCODE pro it may be necessary to provide additional line protection!
2)
For 3UF7 103 or 3UF7 104 up to 8 kV.
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Current measuring modules or current/voltage measuring modules
Connection for main circuit
Feed-through opening (diameter)
• Current setting Ie = 0.3 ... 3 A; 2.4 ... 25 A
• Current setting Ie = 10 ... 100 A
• Current setting Ie = 20 ... 200 A
Busbar connections1)
• Current setting Ie
• Terminal screw
• Tightening torque
• Solid with cable lug
• Stranded with cable lug
• AWG cable
Conductor cross-sections for voltage measurement
• Tightening torque
• Solid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
mm
mm
mm
7.5
14.0
25.0
Nm
mm2
mm2
AWG
3UF7 100, 3UF7 101, 3UF7 102
20 ... 200
M8 x 25
10 ... 14
16 ... 952)
25 ... 1202)
6 ... 3/0 kcmil
Nm
mm2
m m2
AWG
AWG
0.8 ... 1.2
1 x (0.5 ... 4.0); 2 x (0.5 ... 2.5)
1 x (0.5 ... 2.5); 2 x (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
A
3UF7 103, 3UF7 104
63 ... 630
M10 x 30
14 ... 24
50 ... 2403)
70 ... 2403)
1/0 ... 500 kcmil
Decoupling modules
Mounting
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Display
• Green "READY" LED
• Continuous light: "Ready"
System interfaces
Conductor cross-sections
• Tightening torque
• Solid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
Left interface for connecting to a basic unit or to an expansion module, right
interface only for connecting to a current/voltage measuring module.
Nm
mm2
m m2
AWG
AWG
0.8 ... 1.2
1 x (0.5 ... 4.0); 2 x (0.5 ... 2.5)
1 x (0.5 ... 2.5); 2 x (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
Digital modules
Mounting
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Display
• Green "READY" LED
• Continuous light: "Ready"
• Flashing: "No connection to the basic unit"
System interfaces
For connecting to a basic unit, another expansion module,
a current measuring module or current/voltage measuring module or to the
operator panel
Control circuit
Rated insulation voltage Ui
V
300 (at degree of pollution 3)
Rated impulse withstand voltage Uimp
kV
4
A
2 monostable or bistable relay outputs (depending on the version)
Floating NO contacts (NC contact response can be parameterized with
internal signal conditioning), all relay outputs are jointly connected to a common potential, they can be freely assigned to the control functions (e. g. for
line, wye and delta contactors and for signaling the operating state)
• Fuse links, gL/gG operational class 6 A, quick-acting 10 A (IEC 60947-5-1)
• Miniature circuit breaker 1.6 A, C characteristic (IEC 60947-5-1)
• Miniature circuit breaker 6 A, C characteristic (Ik<500 A)
6
Relay outputs
• Number
• Auxiliary contacts of the 2 relay outputs
• Specified short-circuit protection for auxiliary contacts
(relay outputs)
• Rated uninterrupted current
• Rated switching capacity
AC-15
DC-13
Inputs (binary)
Conductor cross-sections
• Tightening torque
• S olid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
6 A/24 V AC
2 A/24 V DC
6 A/120 V AC
0.55 A/60 V DC
3 A/230 V AC
0.25 A/125 V DC
4 externally supplied floating inputs, 24 V DC or 110 ... 240 V AC/DC
depending on the version; inputs jointly connected to common potential for
sensing process signals (e. g.: local control station, key-operated switch,
limit switch ...), freely assignable to the control functions
Nm
mm2
mm2
AWG
AWG
1)
Screw terminal is possible using a suitable 3RT19 ... box terminal.
2)
When connecting cable lugs according to DIN 46235, use the 3RT19 56-4EA1
terminal cover for conductor cross-sections from 95 mm2 to ensure phase
spacing.
3)
When connecting cable lugs according to DIN 46234 for conductor crosssections from 240 mm2 as well as DIN 46235 for conductor cross-sections from
185 mm2, use the 3RT19 66-4EA1 terminal cover to ensure phase spacing.
0.8 ... 1.2
1 × (0.5 ... 4.0); 2 × (0.5 ... 2.5)
1 × (0.5 ... 2.5); 2 × (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
-
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Industrial Controls Catalog
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SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Ground-fault modules
Mounting
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Display
• Green "READY" LED
• Continuous light: "Ready"
• Flashing: "No connection to the basic unit"
System interfaces
For connecting to a basic unit, another expansion module,
a current measuring module or current/voltage measuring module or to the
operator panel
Control circuit
Connectable 3UL22 summation current transformer
with rated fault currents IN
• IGround fault ≤ 50 % IN
• IGround fault ≥ 100 % IN
A
Response delay (conversion time)
ms
300 ... 500, additionally delayable
Conductor cross-sections
• Tightening torque
• Solid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
Nm
mm2
mm2
AWG
AWG
0.8 ... 1.2
1 × (0.5 ... 4.0); 2 × (0.5 ... 2.5)
1 × (0.5 ... 2.5); 2 × (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
0.3/0.5/1
No tripping
Tripping
Temperature modules
Mounting
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Display
• Green "READY" LED
• Continuous light: "Ready"
• Flashing: "No connection to the basic unit"
System interfaces
For connecting to a basic unit, another expansion module,
a current measuring module or current/voltage measuring module or to the
operator panel
Sensor circuit
Typical sensor circuits
• PT100
• PT1000/KTY83/KTY84/NTC
Open-circuit/short-circuit detection
• For sensor type
• Open circuit
• Short-circuit
• Measuring range
Measuring accuracy at 20 °C ambient temperature (T20)
mA
mA
1 (typical)
0.2 (typical)
PT100/PT1000
KTY83-110 KTY84
°C
-50 ... +500
-50 ... +175 -40 ... +300 +80 ... +160
K
< ±2
Deviation due to ambient temperature (in % of measuring range)
%
0.05 per K deviation from T20
Conversion time
ms
500
Connection type
Conductor cross-sections
• Tightening torque
• Solid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
NTC
--
Two- or three-wire connection
Nm
mm2
mm2
AWG
AWG
0.8 ... 1.2
1 × (0.5 ... 4.0); 2 × (0.5 ... 2.5)
1 × (0.5 ... 2.5); 2 × (0.5 ... 1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
Detection possible
-- Detection not possible
3/68
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Analog modules
Mounting
Snap-on mounting onto 35 mm standard mounting rail or
screw fixing with additional push-in lugs
Display
• Green "READY" LED
• Continuous light: "Ready"
• Flashing: "No connection to the basic unit"
System interfaces
For connecting to a basic unit, another expansion module,
a current measuring module or current/voltage measuring module or to the
operator panel
Control circuit
Inputs
• Channels
• Parameterizable measuring ranges
• Shielding
• Max. input current (destruction limit)
• Accuracy
• Input resistance
• Conversion time
• Resolution
• Open-circuit detection
Output
• Channels
• Parameterizable output range
• Shielding
• Max. voltage at output
• Accuracy
• Max. output load
• Conversion time
• Resolution
• Short-circuit resistant
mA
mA
%
Ω
ms
bit
mA
%
Ω
ms
bit
2 (passive)
0/4...20
Up to 30 m shield recommended, from 30 m shield required
40
±1
50
150
12
With measuring range 4 ... 20 mA
1
0/4...20
Up to 30 m shield recommended, from 30 m shield required
30 V DC
±1
500
25
12
Yes
Connection type
Two-wire connection
Electrical separation of inputs/output to the device electronics
No
Conductor cross-sections
• Tightening torque
• S olid
• Finely stranded with end sleeve
• AWG cable (solid)
• AWG cable (finely stranded)
Nm
mm2
mm2
AWG
AWG
0.8...1.2
1 x (0.5...4.0); 2 x (0.5...2.5)
1 x (0.5...2.5); 2 x (0.5...1.5)
1 x AWG 20 to 12/2 x AWG 20 to 14
1 x AWG 20 to 14/2 x AWG 20 to 16
Operator panels
Mounting
Display
• Red/green/yellow LED "DEVICE"
• Green "BUS" LED
• Red "GEN. FAULT" LED
• Green or yellow LEDs
Keys
• Test/Reset
• Control keys
System interface
• Front
• Rear
Siemens Industry, Inc.
Industrial Controls Catalog
Mounted in a control cabinet door or in a front panel,
IP54 with system interface cover
•
•
•
•
•
•
•
Green: "Ready"
Green flashing: "No connection to the basic unit"
Red: "Function test not OK; device is disabled"
Yellow: "Memory module or addressing plug detected"
Off: "No control supply voltage"
Continuous light: "Communication with PLC/PCS"
Flashing: "Baud rate recognized/communicating with PC or programming
device"
• Continuous light/flashing: "Feeder fault", e. g. overload trip
For assigning to any status signals, as required
• Resets the device after tripping
• Function test
• Operation of a memory module or addressing plug
For controlling the motor feeder, user-assignable
For plugging in a memory module, an addressing plug or
a PC cable for parameterization
Connection to the basic unit or to an expansion module
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SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Operator panels with display
Mounting
Display
• Red/green/yellow LED "DEVICE"
• Green "BUS" LED
• Red "GEN. FAULT" LED
• 4 green LEDs
Displays
Keys
• Control keys
• Arrow keys
• Softkeys
System interface
• Front
• Rear
3/70
Mounted in a control cabinet door or in a front panel,
IP54 with system interface cover
•
•
•
•
•
•
•
Green: "Ready"
Green flashing: "No connection to the basic unit"
Red: "Function test not OK; device is disabled"
Yellow: "Memory module or addressing plug detected"
Off: "No control supply voltage"
Continuous light: "Communication with PLC/PCS"
Flashing: "Baud rate recognized/communicating with PC or programming
device"
• Continuous light/flashing: "Feeder fault", e. g. overload trip
For assigning to any status signals as required (preferably for the feedback
of switching states, e. g. On, Off, Left, Right, etc.)
Graphic display for indicating current measured values, operational and
diagnostics data or status information
For controlling the motor feeder, user-assignable
Navigation in the display menu
Various menu-dependent functions, e. g. test, reset, operation of a memory
module or addressing plug
For plugging in a memory module, an addressing plug or
a PC cable for parameterization
Connection to the basic unit or to an expansion module
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Dimensional drawings
Basic unit 1, SIMOCODE pro C, 3UF7 000
Basic unit 2, SIMOCODE pro V, 3UF7 010
3UF7 100, 3UF7 101 current measuring module
(straight-through transformer)
3UF7 102 current measuring module
(straight-through transformer)
3UF7 103 current measuring module (straight-through transformer)
Siemens Industry, Inc.
Industrial Controls Catalog
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SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
3UF7 103 current measuring module (busbar connection)
3UF7 113 current/voltage measuring module (busbar connection)
3UF7 104 current measuring module (busbar connection)
3UF7 114 current/voltage measuring module (busbar connection)
145
48
25
122
147
88
11
9
32
125
67
NSA0_00404
6
149
3/72
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
3UF7 110, 3UF7 111 current/voltage measuring module
(straight-through transformer)
3UF7 112 current/voltage measuring module
(straight-through transformer)
3UF7 113 current/voltage measuring module (straight-through transformer)
Siemens Industry, Inc.
Industrial Controls Catalog
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SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
96
36
29
3UF7 920 door adapter
NSA0_00385a
3UF7 200 operator panel
8
29
7
89
3UF7 3 digital module
3UF7 4 analog module
3UF7 5 ground-fault module
3UF7 7 temperature module
3UF7 15 decoupling module
NSA0_00463b
60
55
3UF7 210 operator panel with display
96
29
33
91,5
100
51
63
3UF7 922 adapter for operator panel
37
NSA0_00464
62
38
3/74
Siemens Industry, Inc.
Industrial Controls Catalog
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