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Siemens 3RH1344-2CP00-0KA0 — Contactors

Siemens 3RH1344-2CP00-0KA0 SIRIUS Auxiliary Contactor, 4 NO

MPN3RH1344-2CP00-0KA0

Siemens SIRIUS auxiliary contactor, 3RH1344-2CP00-0KA0, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, 45 mm width.

StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RH1344-2CP00-0KA0 — Identification
ParameterValue
Contactor frame sizeS00

Ratings & Performance

3RH1344-2CP00-0KA0 — 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

Control & Coil

3RH1344-2CP00-0KA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V

Contacts & Poles

3RH1344-2CP00-0KA0 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Connection & Mounting

3RH1344-2CP00-0KA0 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting

Durability

3RH1344-2CP00-0KA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000

Environmental

3RH1344-2CP00-0KA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RH1344-2CP00-0KA0 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth114 mm

Product details

It provides four normally open (NO) instantaneous contacts and is rated for a mechanical endurance of 10,000,000 operating cycles.

The contactor's rated operational current varies with voltage and frequency: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. At 50 Hz the rated operational current range is 0.8 to 1.1 A; at 60 Hz it is 0.85 to 1.1 A. These values define the continuous current the contacts can carry and interrupt under normal conditions — a 10 A rating at 24 V covers most PLC output and relay coil loads, while the 1 A at 690 V accommodates higher-voltage control circuits in 690 V line-fed panels.

The 45 mm wide, 60 mm tall, 114 mm deep footprint fits the standard S00 contactor slot on a DIN rail. Fastening is by screw and snap-on mounting.

Environmental and surge protection

Shock resistance is 10 g / 5 ms and 5 g / 10 ms, which covers most industrial vibration environments short of direct hammer-mill mounting. The built-in surge suppressor uses a varistor, so no external RC snubber is needed for coil suppression on AC control circuits — a detail that saves panel space and wiring time.

Frequently asked questions

Is 3RH1344-2CP00-0KA0 compatible with the 3RH2 series?

The 3RH1344-2CP00-0KA0 belongs to the SIRIUS 3RH1 family (size S00). Compatibility with the 3RH2 series depends on the specific mounting rail and contact configuration — verify the footprint and terminal layout against your existing panel cutout before specifying.

MPN
3RH1344-2CP00-0KA0