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Siemens 3RH2131-1BE40 — Contactors

Siemens 3RH2131-1BE40 SIRIUS Auxiliary Contactor, 3 NO + 3 N

MPN3RH2131-1BE40
Active

Siemens SIRIUS auxiliary contactor, 3RH2131-1BE40, size S00, 3 NO + 3 NC contacts, 24 VDC coil, screw and snap-on mounting on 35 mm DIN rail.

$24.13Ref. price · indicative, final on quote
Siemens 3RH2131-1BE40 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RH2131-1BE40 — Identification
ParameterValue
Contactor frame sizeS00
3RH2131-1BE40 — 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
3RH2131-1BE40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH2131-1BE40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2131-1BE40 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail
3RH2131-1BE40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2131-1BE40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2131-1BE40 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2131-1BE40 — Specifications
ParameterValue
At AC10 000 1/h

Product details

Siemens 3RH2131-1BE40 — SIRIUS Auxiliary Contactor, S00 Frame, 24 VDC

The Siemens 3RH2131-1BE40 is a SIRIUS auxiliary contactor in size S00, carrying 3 normally-open and 3 normally-closed instantaneous contacts. It is rated for a 24 VDC coil with a closing and holding power of 4 W. This is a current-production part.

Contact Ratings & Switching Performance

DC ratings are lower: 4.7 A at 60 V, 1.2 A at 220 V, and 0.26 A at 600 V. The contactor can switch at up to 10,000 operations per hour on AC duty, with an arcing time of 10 to 15 ms and a DC switching duration of 7 to 13 ms. These figures make it suitable for high-cycle applications like conveyor interlocks or machine-tool auxiliary circuits.

The part is rated for degree of pollution 3 and relative humidity minimum 10 %. Substance prohibitance date is 10/01/2009, indicating RoHS compliance per EU Directive 2002/95/EC. The product extension for auxiliary switches is marked as yes, meaning it accepts add-on blocks.

Wiring accepts solid or stranded conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm².

Frequently asked questions

Where can I buy 3RH2131-1BE40?

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

What is the closest functional second-source to 3RH2131-1BE40?

The 3RH2122-1BW40 is a SIRIUS size S00 auxiliary contactor with 2 NO + 2 NC contacts and a different coil voltage. It shares the same frame and mounting footprint, so it can drop into the same panel without rewiring, but contact configuration and coil rating differ.

What compliance documentation does Siemens provide for 3RH2131-1BE40?

The part carries a substance prohibitance date of 10/01/2009, indicating RoHS compliance. Standard Siemens documentation includes a declaration of conformity and material declaration. Specific certificates (UL, CSA, IEC) should be confirmed at order time.

MPN
3RH2131-1BE40