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Siemens 3RH1131-2BM40 — Contactors

Siemens 3RH1131-2BM40 SIRIUS Auxiliary Contactor, 10 A AC-12

MPN3RH1131-2BM40

Siemens SIRIUS auxiliary contactor, size S00, 3 NO + 1 NC, 220 V DC coil, Cage Clamp terminals, 10 A AC-12 rated operational current, IP20 front protection.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1131-2BM40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1131-2BM40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1131-2BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1131-2BM40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1131-2BM40 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1131-2BM40 — Connection & Mounting
ParameterValue
Aux. / control circuit connectionCage Clamp terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1131-2BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1131-2BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1131-2BM40 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It carries 3 normally open and 1 normally closed instantaneous contacts, with a rated operational current of 10 A in AC-12 duty (resistive loads) and a 220 V DC coil. The 10 A AC-12 rating means it can handle resistive control loads up to that current, typical for pilot devices, PLC outputs, and contactor coils.

Terminals are Cage Clamp (spring-cage) for the auxiliary and control circuit, accepting 2x (0.25 to 2.5 mm²) solid or 2x (0.25 to 1.5 mm²) finely stranded with ferrule. This speeds wiring and reduces torque-check steps during panel build.

Shock resistance is 10g / 5 ms and 5g / 10 ms, suitable for machine-mounted applications with moderate vibration. Degree of pollution 3 per IEC 60947-1, meaning it tolerates conductive pollution in industrial atmospheres. Surge voltage resistance rated at 6 kV.

Frequently asked questions

What are the key current ratings for this auxiliary contactor?

The 3RH1131-2BM40 is rated 10 A at AC-12 (resistive loads) and 10 A at 24 V DC. At 110 V DC the rating is 1 A, and at 220 V DC it is 0.27 A.

Where can I buy the 3RH1131-2BM40?

The 3RH1131-2BM40 is sourced to order against an RFQ through our independent distribution network. Availability and current pricing are confirmed at quote time.

What is the depth of the 3RH1131-2BM40?

The depth is 73 mm, with a width of 45 mm and height of 60 mm.

Does the 3RH1131-2BM40 use Cage Clamp terminals?

Yes, the auxiliary and control circuit terminals are Cage Clamp (spring-cage) type, accepting 2x (0.25 to 2.5 mm²) solid or 2x (0.25 to 1.5 mm²) finely stranded with ferrule.

MPN
3RH1131-2BM40