Data sheet 3RU2136-4BB0
Overload relay 14...20 A Thermal For motor protection Size S2, Class 10 Contactor
mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset
product brand name SIRIUS
product designation thermal overload relay
product type designation 3RU2
General technical data
size of overload relay S2
size of contactor can be combined company-specific S2
power loss [W] for rated value of the current at AC in hot 10.5 W
operating state
● per pole 3.5 W
insulation voltage with degree of pollution 3 at AC rated value 690 V
surge voltage resistance rated value 6 kV
maximum permissible voltage for protective separation
● in networks with ungrounded star point between auxiliary 415 V
and auxiliary circuit
● in networks with grounded star point between auxiliary 415 V
and auxiliary circuit
● in networks with ungrounded star point between main and 690 V
auxiliary circuit
● in networks with grounded star point between main and 690 V
auxiliary circuit
shock resistance according to IEC 60068-2-27 8g / 11 ms
reference code according to IEC 81346-2 F
Substance Prohibitance (Date) 10/15/2014
SVHC substance name Lead - 7439-92-1
Weight 0.33 kg
Ambient conditions
installation altitude at height above sea level maximum 2 000 m
ambient temperature
● during operation -40 ... +70 °C
● during storage -55 ... +80 °C
● during transport -55 ... +80 °C
temperature compensation -40 ... +60 °C
relative humidity during operation 10 ... 95 %
Main circuit
number of poles for main current circuit 3
adjustable current response value current of the current- 14 ... 20 A
dependent overload release
operating voltage
● rated value 690 V
● at AC-3e rated value maximum 690 V
operating frequency rated value 50 ... 60 Hz
operational current rated value 20 A
3RU21364BB0 Subject to change without notice
9/24/2024
Page 1/5 © Copyright Siemens
operational current at AC-3e at 400 V rated value 20 A
operating power
● at AC-3
— at 400 V rated value 7.5 kW
— at 500 V rated value 11 kW
— at 690 V rated value 15 kW
● at AC-3e
— at 400 V rated value 7.5 kW
— at 500 V rated value 11 kW
— at 690 V rated value 15 kW
Auxiliary circuit
design of the auxiliary switch integrated
number of NC contacts for auxiliary contacts 1
● note for contactor disconnection
number of NO contacts for auxiliary contacts 1
● note for message "Tripped"
number of CO contacts for auxiliary contacts 0
operational current of auxiliary contacts at AC-15
● at 24 V 3A
● at 110 V 3A
● at 120 V 3A
● at 125 V 3A
● at 230 V 2A
● at 400 V 1A
● at 690 V 0.75 A
operational current of auxiliary contacts at DC-13
● at 24 V 2A
● at 60 V 0.3 A
● at 110 V 0.22 A
● at 125 V 0.22 A
● at 220 V 0.11 A
design of the miniature circuit breaker for short-circuit protection 6A (SCC less than equal to 0.5 kA; U less than equal to 260V)
of the auxiliary switch required
contact rating of auxiliary contacts according to UL B600 / R300
Protective and monitoring functions
trip class CLASS 10
design of the overload release thermal
UL/CSA ratings
full-load current (FLA) for 3-phase AC motor
● at 480 V rated value 20 A
● at 600 V rated value 20 A
Short-circuit protection
design of the fuse link
● for short-circuit protection of the auxiliary switch required fuse gG: 6 A, quick: 10 A
Installation/ mounting/ dimensions
mounting position any
fastening method Contactor mounting
height 90 mm
width 55 mm
depth 105 mm
Connections/ Terminals
product component removable terminal for auxiliary and No
control circuit
type of electrical connection
● for main current circuit screw-type terminals
● for auxiliary and control circuit screw-type terminals
arrangement of electrical connectors for main current Top and bottom
circuit
type of connectable conductor cross-sections
● for main contacts
— solid or stranded 2x (1 ... 35 mm²), 1x (1 ... 50 mm²)
3RU21364BB0 Subject to change without notice
9/24/2024
Page 2/5 © Copyright Siemens
— finely stranded with core end processing 2x (1 ... 25 mm²), 1x (1 ... 35 mm²)
● for AWG cables for main contacts 2x (18 ... 2), 1x (18 ... 1)
type of connectable conductor cross-sections
● for auxiliary contacts
— solid or stranded 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
— finely stranded with core end processing 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
● for AWG cables for auxiliary contacts 2x (20 ... 16), 2x (18 ... 14)
tightening torque
● for main contacts with screw-type terminals 3 ... 4.5 N·m
● for auxiliary contacts with screw-type terminals 0.8 ... 1.2 N·m
design of screwdriver shaft Diameter 5 ... 6 mm
size of the screwdriver tip Pozidriv PZ 2
design of the thread of the connection screw
● for main contacts M6
● of the auxiliary and control contacts M3
IEC 61508
T1 value
● for proof test interval or service life according to IEC 20 a
61508
Electrical Safety
protection class IP on the front according to IEC 60529 IP20
touch protection on the front according to IEC 60529 finger-safe, for vertical contact from the front
Display
display version for switching status Slide switch
Approvals Certificates
General Product Approval
Confirmation
For use in hazardous locations Test Certificates Marine / Shipping
Miscellaneous Special Test Certific- Type Test Certific-
ate ates/Test Report
Marine / Shipping
other Railway Environment
Confirmation Special Test Certific- Environmental Con-
ate firmations
Further information
Information on the packaging
https://support.industry.siemens.com/cs/ww/en/view/109813875
Information- and Downloadcenter (Catalogs, Brochures,…)
https://www.siemens.com/ic10
Industry Mall (Online ordering system)
https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RU2136-4BB0
Cax online generator
http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RU2136-4BB0
3RU21364BB0 Subject to change without notice
9/24/2024
Page 3/5 © Copyright Siemens
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
https://support.industry.siemens.com/cs/ww/en/ps/3RU2136-4BB0
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RU2136-4BB0&lang=en
Characteristic: Tripping characteristics, I²t, Let-through current
https://support.industry.siemens.com/cs/ww/en/ps/3RU2136-4BB0/char
Further characteristics (e.g. electrical endurance, switching frequency)
http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RU2136-4BB0&objecttype=14&gridview=view1
3RU21364BB0 Subject to change without notice
9/24/2024
Page 4/5 © Copyright Siemens
RESET
STOP
TEST
97 NO
95 NC
-F1
2/T1
4/T2
6/T3
96
98
last modified: 4/5/2024
3RU21364BB0 Subject to change without notice
9/24/2024
Page 5/5 © Copyright Siemens
