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Siemens 3RH2131-2AB00 — Contactors

Siemens 3RH2131-2AB00 SIRIUS Auxiliary Contactor, 3 NO Conta

MPN3RH2131-2AB00
Active

Siemens SIRIUS, Size S00 auxiliary contactor, 3RH2131-2AB00, 3 NO instantaneous contacts, 10 A at 24 V rated, screw and snap-on 35 mm DIN rail mount.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RH2131-2AB00 — Identification
ParameterValue
Contactor frame sizeS00
3RH2131-2AB00 — 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 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2131-2AB00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RH2131-2AB00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2131-2AB00 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail
3RH2131-2AB00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2131-2AB00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2131-2AB00 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm
3RH2131-2AB00 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It's the part you reach for when you need to mirror a contactor's state or interlock a sequence — no coil load switching, just signal-level circuit extension on a DIN rail.

Fit and footprint — the DIN-rail reality

The 73 mm depth and 45 mm width put it in the standard S00 slot. That's tighter than some contactors, so if you're packing a dense panel, the 6 mm side gap is the limit you'll hit first.

Ratings that matter for the circuit

Three instantaneous NO contacts — no time delay, no auxiliary logic. Rated operational current drops as voltage climbs: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 10 A at 230 V, 3 A at 400 V, 0.5 A at 440 V, 2 A at 500 V, 0.26 A at 600 V, and 1 A at 690 V. That's a steep derating curve above 400 V — if you're switching at 600 V, the 0.26 A limit means this is signal-only, not load-carrying.

Frequently asked questions

Where can I buy 3RH2131-2AB00 and how is it quoted?

We source and quote it to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 3RH2131-2AB00 drop into a panel specified around 3RH2131-2AK60 without rewiring?

Both are Size S00 auxiliary contactors with the same 73x45x70 mm footprint and screw/snap-on DIN rail mount. The 3RH2131-2AB00 carries 3 NO contacts; the 2AK60 variant differs in contact configuration. Mechanically they share the same panel cutout and rail position, so no rewiring of the mounting is needed — but verify the contact arrangement matches your circuit before swapping.

What compliance documentation does Siemens provide for 3RH2131-2AB00?

RoHS and REACH compliance are covered, with a substance prohibition date of 10/01/2009. Standard SIRIUS documentation includes the declaration of conformity and environmental data sheets.

What are the key dimensions of 3RH2131-2AB00?

Depth 73 mm, width 45 mm, height 70 mm. Clearance requirements: 10 mm upwards, forwards, and downwards; 6 mm at the side.

MPN
3RH2131-2AB00