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Siemens 3RH2344-1CM20 — Contactors

Siemens 3RH2344-1CM20 SIRIUS Auxiliary Contactor, 4 NO

MPN3RH2344-1CM20
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Siemens SIRIUS 3RH2344-1CM20 auxiliary contactor, size S00, 4 NO instantaneous contacts, 208 V AC 50/60 Hz rated control supply voltage, screw and snap-on mounting on 35 mm DIN rail.

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

Specifications

3RH2344-1CM20 — Identification
ParameterValue
Contactor frame sizeS00
3RH2344-1CM20 — 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 @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2344-1CM20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz208 V
3RH2344-1CM20 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2344-1CM20 — 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
3RH2344-1CM20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH2344-1CM20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2344-1CM20 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth117 mm
3RH2344-1CM20 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Rated operational current across the voltage range

The 3RH2344-1CM20: This SIRIUS size S00 auxiliary contactor carries 4 NO instantaneous contacts rated for switching at voltages from 24 V to 690 V.

Environmental and compliance data

Pollution degree 3 per IEC 60947-1. Relative humidity minimum 10%. RoHS compliance date is 07/01/2006.

MPN
3RH2344-1CM20