BOM / RFQ

Siemens 3RH1422-1AH00 SIRIUS Auxiliary Contactor, 2 NO + 2 N

MPN3RH1422-1AH00

Siemens SIRIUS auxiliary contactor, size S00, 2 NO + 2 NC instantaneous contacts, 10 A at 24 V, screw and snap-on mounting, IP20 front.

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

Specifications

3RH1422-1AH00 — Identification
Parameter	Value
Contactor frame size	S00

3RH1422-1AH00 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	6 A
Rated value @ 24 V	10 A
Rated value @ 110 V	1 A
Rated value @ 220 V	0.27 A

3RH1422-1AH00 — Control & Coil
Parameter	Value
Control supply voltage type	AC
Rated value @ 50 Hz	0.8 ... 1.1
Rated value @ 50 Hz	48 V

3RH1422-1AH00 — Contacts & Poles
Parameter	Value
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RH1422-1AH00 — Connection & Mounting
Parameter	Value
Conductor cross-section, solid	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting method	screw and snap-on mounting

3RH1422-1AH00 — Durability
Parameter	Value
Durability (operating cycles, typ.)	5 000 000
Durability with aux. switch block (cycles, typ.)	5 000 000

3RH1422-1AH00 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C
Installation altitude, max.	2 000 m

3RH1422-1AH00 — Mechanical
Parameter	Value
Width	90 mm
Height	57.5 mm
Depth	72 mm

Product details

That means it snaps onto the same DIN rail and mates with the same bus system as the S00 power contactors, so panel integration is straightforward: screw and snap-on mounting, with the front face protected to IP20.

Surge voltage resistance rated 6 kV. Operating temperature -25 to +60 °C. Shock resistance 10g / 5 ms and 5g / 10 ms.

Terminals accept solid conductors from 0.5 mm² up to 4 mm² — two wires per clamp for 0.5–2.5 mm², or a single 4 mm². That covers daisy-chaining through the aux block without an extra terminal strip. Depth is 72 mm, width 90 mm, height 57.5 mm — a standard S00 footprint.