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Siemens 3RH1422-1BE40 — Contactors

Siemens 3RH1422-1BE40 SIRIUS Auxiliary Contactor, S00, 24 VD

MPN3RH1422-1BE40

Siemens SIRIUS 3RH1422-1BE40 auxiliary contactor, size S00, 4-pole (2 NO + 2 NC), 24 VDC coil, screw and snap-on mounting, IP20 front protection.

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

Specifications

3RH1422-1BE40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1422-1BE40 — 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 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1422-1BE40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1422-1BE40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1422-1BE40 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (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
3RH1422-1BE40 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000
3RH1422-1BE40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1422-1BE40 — Mechanical
ParameterValue
Width90 mm
Height57.5 mm
Depth72 mm

Product details

The contactor carries 2 normally-open and 2 normally-closed instantaneous contacts, with no leading, lagging, delayed, or make-before-break switching — a straight 4-pole configuration for standard auxiliary functions.

The 24 VDC coil draws 3.2 W during both closing and holding, so the power supply must sustain that continuous draw without droop. Contact ratings vary by voltage: at 24 V it switches 10 A, at 110 V it switches 1 A, at 230 V it switches 6 A, at 400 V it switches 3 A, at 500 V it switches 2 A, and at 690 V it switches 1 A. The 60 V rated value entry likely refers to the coil's rated control supply voltage, not the contact rating. Mechanical life is typical 5 million operations.

Dimensions are 90 mm wide, 57.5 mm high, and 72 mm deep — the S00 footprint common across the SIRIUS family. Shock resistance is 10g at 5 ms and 5g at 10 ms. Terminal capacity accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid, with AWG equivalents of 2x (20 to 16), 2x (18 to 14), or 1x 12. This covers most control wiring gauges used in panel building.

RoHS compliance date is noted as July 1, 2006, indicating the part meets EU RoHS requirements. The product extension for auxiliary switch is marked as yes, meaning add-on auxiliary contact blocks are available.

Frequently asked questions

What wire sizes does the 3RH1422-1BE40 accept?

Terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid, with AWG equivalents of 2x (20 to 16), 2x (18 to 14), or 1x 12.

MPN
3RH1422-1BE40