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Siemens 3RH1131-2BB40 — Contactors

Siemens 3RH1131-2BB40 SIRIUS Auxiliary Contactor, 24 V DC, 1

MPN3RH1131-2BB40

Siemens SIRIUS auxiliary contactor, 3RH1131-2BB40, 24 V DC coil, 10 A rated, 3 NO instantaneous contacts, screw and snap-on mounting, IP20 front, size S00.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1131-2BB40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1131-2BB40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1131-2BB40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1131-2BB40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1131-2BB40 — Connection & Mounting
ParameterValue
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
3RH1131-2BB40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1131-2BB40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1131-2BB40 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

The 10 A rated value at 24 V covers most PLC output and relay interface loads; derate to 6 A at 230 V and 3 A at 400 V when switching higher line voltages. Three instantaneous NO contacts (no delayed or lagging switching) give you a clean set of mirror signals for feedback, interlock, or status indication back to the controller.

The spring-cage terminals accept 0.25 to 2.5 mm² solid or stranded wire — strip length around 8 mm for a clean seat under the clamp.

Frequently asked questions

What is the 3RH1131-2BB40 rated for at 24 V DC?

The rated value at 24 V is 10 A, which covers typical control-circuit loads like PLC outputs, relay coils, and indicator lamps. At higher voltages the rating derates: 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V.

What compliance documentation is available for the 3RH1131-2BB40?

RoHS compliance is confirmed with a substance prohibition date of 01 July 2006. The surge voltage resistance is rated at 6 kV, consistent with IEC 60947-1 coordination requirements for industrial control gear.

Where can I buy the 3RH1131-2BB40 and how is it quoted?

This part is sourced to order through independent distribution. Submit an RFQ with your quantity and delivery requirements; availability and current pricing are confirmed at quote time.

MPN
3RH1131-2BB40