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Siemens 3RH1131-2AB00 — Contactors

Siemens 3RH1131-2AB00 SIRIUS Auxiliary Contactor, 10 A AC-12

MPN3RH1131-2AB00

Siemens SIRIUS auxiliary contactor, size S00, 3RH1131-2AB00, 10 A AC-12 at 24 V, 3 NO + 1 NC contacts, screw and snap-on mounting, IP20 front, 73 mm depth.

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

Specifications

3RH1131-2AB00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1131-2AB00 — Ratings & Performance
ParameterValue
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
3RH1131-2AB00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RH1131-2AB00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1131-2AB00 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1131-2AB00 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
3RH1131-2AB00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1131-2AB00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1131-2AB00 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It carries 3 normally open and 1 normally closed instantaneous contacts, rated 10 A in AC-12 duty (resistive loads at 24 V). That AC-12 rating means it handles control-circuit loads like PLC inputs, indicator lamps, and small solenoid valves without derating — the full 10 A is available across the contact set.

The AC-12 maximum operating current of 10 A is the headline number, but the switching capacity varies with voltage: 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. That voltage-dependent curve matters — if you're switching a 400 V control transformer, the 3 A limit governs, not the 10 A. For DC loads, the 24 V rated value is 10 A, but at 110 V it drops to 1 A, and at 220 V to 0.27 A. Let me show you why that matters: spec the contactor for the worst-case switching voltage, not the 24 V peak. That flexibility is handy when you're squeezing auxiliary contacts into a crowded panel section. Shock resistance is 10g for 5 ms and 5g for 10 ms — fine for industrial machinery but not rated for heavy repetitive impact. Altitude limit is 2 000 m; above that, dielectric strength and cooling both derate.

Wiring and integration notes

The screw-type terminals are standard for panel building — strip length around 8-10 mm, torque to the manufacturer spec. The 0 mm side clearance requirement means you can butt it against adjacent devices without derating, which saves DIN rail space.

Frequently asked questions

What is 3RH1131-2AB00 used for?

It's an auxiliary contactor that adds 3 NO and 1 NC signal contacts to a main contactor or motor starter. Typical use is extending control circuits for PLC inputs, status lamps, or interlocking in a motor control center.

What are the key ratings for 3RH1131-2AB00?

AC-12 maximum operating current is 10 A at 24 V. Switching capacity varies by voltage: 6 A at 230 V, 3 A at 400 V, 1 A at 690 V. For DC: 10 A at 24 V, 1 A at 110 V, 0.27 A at 220 V. Three normally open and one normally closed instantaneous contacts.

Will 3RH1131-2AB00 drop into a panel specified around 3RH2131-2AK60?

Both are SIRIUS S00 frame auxiliary contactors with screw/snap-on mounting, so the footprint and DIN rail clip are identical. The main difference is contact arrangement — 3RH1131-2AB00 has 3 NO + 1 NC, while 3RH2131-2AK60 has a different count. Check your schematic for the contact configuration before swapping.

Where can I buy 3RH1131-2AB00?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send an RFQ for a firm commitment.

MPN
3RH1131-2AB00