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Siemens 3RH1422-1AF00 — Contactors

Siemens 3RH1422-1AF00 SIRIUS Auxiliary Contactor, 10 A AC-12

MPN3RH1422-1AF00

Siemens SIRIUS auxiliary contactor, 3RH1422-1AF00, S00 size, 10 A AC-12, 2 NO contacts, screw and snap-on mounting, IP20 front.

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

Specifications

3RH1422-1AF00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1422-1AF00 — 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
3RH1422-1AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RH1422-1AF00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1422-1AF00 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1422-1AF00 — 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)
3RH1422-1AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000
3RH1422-1AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1422-1AF00 — Mechanical
ParameterValue
Width90 mm
Height57.5 mm
Depth72 mm

Product details

It carries a rated operating current of 10 A at AC-12 (resistive load), which is the rating that governs its use in control transformers, PLC outputs, and relay coils — not a motor-switching figure. The contact configuration is 2 normally open instantaneous contacts, with no delayed or lagging switching, so it's a straight signal repeater for the main contactor's state.

Mounts via screw or snap-on onto DIN rail, with the S00 footprint (90 mm wide, 57.5 mm high, 72 mm deep) leaving room for a full starter stack in a standard panel.

Mechanical endurance and environmental range

Rated for 5,000,000 mechanical cycles typical for SIRIUS auxiliary contactors in this frame.

Wiring and terminal capacity

Terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm². That covers standard control wiring (1.5 mm² for signal loops, 2.5 mm² for short power feeds) without needing ferrule adapters.

Frequently asked questions

What is the physical size and mounting?

Size S00: 90 mm wide, 57.5 mm high, 72 mm deep. Mounts via screw or snap-on onto DIN rail. Mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward.

What wire sizes does the terminal accept?

Solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm².

MPN
3RH1422-1AF00