Data sheet 3RB3036-2UB0

Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 20E
Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-
Reset

product brand name SIRIUS

product designation solid-state overload relay
product type designation 3RB3
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 1.8 W
operating state
● per pole 0.6 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 grounded star point
● between auxiliary and auxiliary circuit 300 V
● between auxiliary and auxiliary circuit 300 V
● between main and auxiliary circuit 600 V
● between main and auxiliary circuit 690 V
shock resistance 15g / 11 ms
● according to IEC 60068-2-27 15g / 11 ms; Signaling contact 97 / 98 in position "Tripped": 8g / 11 ms
thermal current 50 A
reference code according to IEC 81346-2 F
Substance Prohibitance (Date) 10/15/2014
SVHC substance name Lead - 7439-92-1
Lead monoxide (lead oxide) - 1317-36-8
Ambient conditions
installation altitude at height above sea level maximum 2 000 m
ambient temperature
● during operation -25 ... +60 °C
● during storage -40 ... +80 °C
● during transport -40 ... +80 °C
temperature compensation -25 ... +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- 12.5 ... 50 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 50 A

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 operational current at AC-3e at 400 V rated value 50 A
operating power
● for 3-phase motors at 400 V at 50 Hz 7.5 ... 22 kW
● for AC motors at 500 V at 50 Hz 11 ... 30 kW
● for AC motors at 690 V at 50 Hz 11 ... 45 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 4A
● at 110 V 4A
● at 120 V 4A
● at 125 V 4A
● at 230 V 3A
operational current of auxiliary contacts at DC-13
● at 24 V 2A
● at 60 V 0.55 A
● at 110 V 0.3 A
● at 125 V 0.3 A
● at 220 V 0.11 A
Protective and monitoring functions
trip class CLASS 20E
design of the overload release electronic
UL/CSA ratings
full-load current (FLA) for 3-phase AC motor
● at 480 V rated value 50 A
● at 600 V rated value 50 A
contact rating of auxiliary contacts according to UL B600 / R300
Short-circuit protection
design of the fuse link
● for short-circuit protection of the main circuit
— with type of coordination 1 required gG: 250 A
— with type of assignment 2 required gG: 200 A
● for short-circuit protection of the auxiliary switch required fuse gG: 6 A
Installation/ mounting/ dimensions
mounting position any
fastening method Contactor mounting
height 99 mm
width 55 mm
depth 104 mm
Connections/ Terminals
product component removable terminal for auxiliary and Yes
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 1x (1 ... 50 mm²), 2x (1 ... 35 mm²)
● stranded 2x (10 ... 35 mm²), 1x 50 mm²
● solid or stranded 1x (1 ... 50 mm²), 2x (1 ... 35 mm²)
● finely stranded with core end processing 1x (1 ... 35 mm²), 2x (1 ... 25 mm²)
type of connectable conductor cross-sections
● for auxiliary contacts
— solid 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)
— solid or stranded 1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²)

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 — finely stranded with core end processing 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
● for AWG cables for auxiliary contacts 1x (20 ... 14), 2x (20 ... 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 to 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
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
Communication/ Protocol
type of voltage supply via input/output link master No
Electromagnetic compatibility
conducted interference
● due to burst according to IEC 61000-4-4 2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3
● due to conductor-earth surge according to IEC 61000-4-5 2 kV (line to earth) corresponds to degree of severity 3
● due to conductor-conductor surge according to IEC 1 kV (line to line) corresponds to degree of severity 3
61000-4-5
● due to high-frequency radiation according to IEC 61000- 10 V in frequency range 0.15 to 80 MHz, modulation 80 % AM with 1 kHz
4-6
field-based interference according to IEC 61000-4-3 10 V/m
electrostatic discharge according to IEC 61000-4-2 6 kV contact discharge / 8 kV air discharge
Display
display version for switching status Slide switch
Approvals Certificates
General Product Approval

Confirmation

For use in hazard-

EMV Test Certificates Marine / Shipping
ous locations

Special Test Certific- Type Test Certific-

ate ates/Test Report

Marine / Shipping other Environment

Confirmation Environmental Con-

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=3RB3036-2UB0
Cax online generator
http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RB3036-2UB0
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
https://support.industry.siemens.com/cs/ww/en/ps/3RB3036-2UB0
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RB3036-2UB0&lang=en
Characteristic: Tripping characteristics, I²t, Let-through current

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https://support.industry.siemens.com/cs/ww/en/ps/3RB3036-2UB0/char
Further characteristics (e.g. electrical endurance, switching frequency)
http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RB3036-2UB0&objecttype=14&gridview=view1

RESET
TEST

97 NO
95 NC

-F
98 NO
2/T1

96 NC
6/T3
4/T2

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last modified: 3/11/2024

3RB30362UB0 Subject to change without notice

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