Data sheet 3RU1146-4MB0
Overload relay 80...100 A For motor protection Size S3, Class 10 Contactor
mounting Main circuit: Screw terminal Auxiliary circuit: Screw terminal Manual-
Automatic-Reset !!! Phased-out product !!! Successor is SIRIUS 3RU2 Preferred
successor type is >>3RU2146-4MB0<<
product brand name SIRIUS
product designation thermal overload relay
General technical data
size of overload relay S3
size of contactor can be combined company-specific S3
power loss [W] for rated value of the current at AC in hot 21 W
operating state
● per pole 7W
insulation voltage with degree of pollution 3 at AC rated value 1 000 V
surge voltage resistance rated value 8 kV
protection class IP on the front IP20
shock resistance 8g / 10 ms
type of protection DMT 98 ATEX G 001
reference code according to IEC 81346-2 F
Substance Prohibitance (Date) 07/01/2006
SVHC substance name Blei - 7439-92-1
Ambient conditions
installation altitude at height above sea level maximum 2 000 m
ambient temperature
● during operation -20 ... +70 °C
● during storage -55 ... +80 °C
● during transport -55 ... +80 °C
relative humidity during operation 100 %
Main circuit
number of poles for main current circuit 3
adjustable current response value current of the current- 80 ... 100 A
dependent overload release
Auxiliary circuit
number of NC contacts for auxiliary contacts 1
number of NO contacts for auxiliary contacts 1
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
operational current of auxiliary contacts at DC-13
● at 24 V 1A
● at 110 V 0.22 A
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● at 125 V 0.22 A
● at 220 V 0.11 A
Protective and monitoring functions
trip class CLASS 10
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 gL/gG: 6 A, quick: 10 A
Installation/ mounting/ dimensions
mounting position with vertical mounting surface +/-135° rotatable, with vertical mounting surface
+/- 45° tiltable to the front and back
fastening method Contactor mounting
height 120 mm
width 70 mm
depth 140 mm
required spacing
● with side-by-side mounting
— forwards 0 mm
— backwards 0 mm
— upwards 0 mm
— downwards 0 mm
— at the side 0 mm
● for grounded parts
— forwards 0 mm
— backwards 0 mm
— upwards 0 mm
— at the side 6 mm
— downwards 0 mm
● for live parts
— forwards 0 mm
— backwards 0 mm
— upwards 0 mm
— downwards 0 mm
— at the side 6 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
type of connectable conductor cross-sections for main contacts
● solid 2x (2.5 ... 16 mm²)
● stranded 2x (10 ... 50 mm²), 10 ... 70 mm²
● finely stranded with core end processing 2x (2.5 ... 35 mm²), 2.5 ... 50 mm²
type of connectable conductor cross-sections
● for auxiliary contacts
— solid 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)
Electrical Safety
touch protection against electrical shock finger-safe
Approvals Certificates
For use in hazard-
General Product Approval
ous locations
Confirmation
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For use in hazard-
Test Certificates Marine / Shipping other
ous locations
Special Test Certific- Type Test Certific- Confirmation Miscellaneous
ate ates/Test Report
Railway
Special Test Certific-
ate
Further information
Siemens has decided to exit the Russian market (see here).
https://press.siemens.com/global/en/pressrelease/siemens-wind-down-russian-business
Siemens is working on the renewal of the current EAC certificates.
Please contact your local Siemens office on the status of validity of the EAC certification if you intend to import or offer to supply these products to an
EAC relevant market (other than the sanctioned EAEU member states Russia or Belarus).
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=3RU1146-4MB0
Cax online generator
http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RU1146-4MB0
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
https://support.industry.siemens.com/cs/ww/en/ps/3RU1146-4MB0
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RU1146-4MB0&lang=en
Characteristic: Tripping characteristics, I²t, Let-through current
https://support.industry.siemens.com/cs/ww/en/ps/3RU1146-4MB0/char
Further characteristics (e.g. electrical endurance, switching frequency)
http://www.automation.siemens.com/bilddb/index.aspx?view=Search&mlfb=3RU1146-4MB0&objecttype=14&gridview=view1
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224
SIEMENS
Test
0 1
H A
STOP RESET
89
70 124
136
149
RESET
STOP
TEST
-F 1/L1 3/L2 5/L3 95 97
2/T1 4/T2 6/T3 96 98
last modified: 9/5/2023
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