Skip to main content
Siemens 3RH1131-2KB40-2AA0 — Contactors

Siemens 3RH1131-2KB40-2AA0 SIRIUS Auxiliary Contactor, 24 V

MPN3RH1131-2KB40-2AA0

Siemens SIRIUS auxiliary contactor, 3RH1131-2KB40-2AA0, 24 V DC coil, 3 instantaneous NO contacts, size S00, IP20 front, screw and snap-on mounting.

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

3RH1131-2KB40-2AA0 — Identification
ParameterValue
Contactor frame sizeS00
3RH1131-2KB40-2AA0 — 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
3RH1131-2KB40-2AA0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1131-2KB40-2AA0 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1131-2KB40-2AA0 — 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
3RH1131-2KB40-2AA0 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RH1131-2KB40-2AA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1131-2KB40-2AA0 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It carries three instantaneous normally-open contacts, each rated for 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V, so it handles everything from a PLC input to a small contactor coil. It mounts on a DIN rail or with screws, and the size S00 footprint (45 mm wide, 60 mm tall, 73 mm deep) fits the standard SIRIUS contactor grid — same panel cutout as a 3RT10 contactor.

The 24 V DC coil is the standard control voltage for most industrial PLCs and safety relays — no extra power supply needed if your cabinet already runs 24 VDC. The 3 NO contacts are instantaneous (no make-before-break or delayed action), so they switch at the same moment the coil picks up, which matters when you need simultaneous signal feedback or interlocks. The contact reliability spec — one incorrect switching operation per 100 million at 17 V, 1 mA — means these contacts are reliable even at dry-circuit levels, so they can switch PLC inputs without gold-plating. Pollution degree 3 is typical for industrial control panels.

Frequently asked questions

Will this part fit in a panel designed for a 3RT10 contactor?

Yes — the size S00 footprint (45 mm wide, 60 mm tall, 73 mm deep) is the same as the 3RT10 contactor series. It mounts on DIN rail or with screws, and the mounting position can be rotated or tilted for tight layouts.

MPN
3RH1131-2KB40-2AA0