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Siemens 3RH2122-1AB00-ZW97 — Contactors

Siemens 3RH2122-1AB00-ZW97 SIRIUS Auxiliary Contactor, 24 V

MPN3RH2122-1AB00-ZW97
Active

Siemens SIRIUS 3RH2122-1AB00-ZW97 auxiliary contactor, size S00, 24 V AC 50/60 Hz coil, 2 instantaneous contacts, screw and snap-on mounting on 35 mm DIN rail, 73 mm depth, 45 mm width, 57.5 mm height.

Siemens 3RH2122-1AB00-ZW97 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RH2122-1AB00-ZW97 — Identification
ParameterValue
Contactor frame sizeS00
3RH2122-1AB00-ZW97 — 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
3RH2122-1AB00-ZW97 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RH2122-1AB00-ZW97 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2122-1AB00-ZW97 — 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 DIN rail
3RH2122-1AB00-ZW97 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2122-1AB00-ZW97 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2122-1AB00-ZW97 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2122-1AB00-ZW97 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

SIRIUS S00 auxiliary contactor, 24 V coil

The Siemens 3RH2122-1AB00-ZW97 is a SIRIUS-brand auxiliary contactor in the S00 frame size, designed for switching control circuits rather than main motor loads.

Rated operational current across the voltage range

This auxiliary contactor's switching capacity varies significantly with voltage. For DC switching, at 24 V it manages 10 A, while at 60 V it falls to 4.7 A and at 220 V to 1.2 A. The 2 instantaneous contacts (make/break, no delay) suit signal-level interlocking, auxiliary relay functions, and PLC output isolation.

RoHS compliance date is noted as October 1, 2009, meaning the design meets the EU RoHS directive for the substance prohibitions in effect at that date.

MPN
3RH2122-1AB00-ZW97