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Siemens 3RH1344-1AD00 — Contactors

Siemens SIRIUS 3RH1344-1AD00 Auxiliary Contactor, 4 NO, 10 A

MPN3RH1344-1AD00

Siemens SIRIUS auxiliary contactor, 3RH1344-1AD00, 4 NO contacts, 10 A AC-12, S00 size, screw and snap-on mounting, 45 mm wide.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1344-1AD00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1344-1AD00 — 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
3RH1344-1AD00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RH1344-1AD00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1344-1AD00 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1344-1AD00 — 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)
3RH1344-1AD00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1344-1AD00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1344-1AD00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth111 mm

Product details

It carries four normally-open (NO) instantaneous contacts, rated 10 A at AC-12 (resistive loads at 50/60 Hz), and 10 A at 24 V DC — enough to handle most pilot-duty and signal-level switching in a 24 VDC control loop, though the DC rating drops sharply at higher voltages (1 A at 110 V, 0.27 A at 220 V).

Mounts via screw or snap-on to DIN rail. S00 footprint is 45 mm wide, 57.5 mm tall, 111 mm deep. Terminals accept solid or ferruled stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² — the dual-wire capacity is useful for daisy-chaining common signals without an extra terminal block.

Environmental and life ratings

Shock-rated at 10g / 5 ms and 5g / 10 ms — tough enough for machine-tool cabinets and conveyor lines, not for direct mounting on a vibrating pump skid without isolation.

Frequently asked questions

What is 3RH1344-1AD00's listed depth (111 mm) on this component line?

The depth is 111 mm — that is the dimension from the DIN-rail mounting face to the furthest point of the housing, not including wiring projection.

What is 3RH1344-1AD00's listed solid (2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), 2x 4 mm²) on this component line?

The terminal accepts two conductors per clamp: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² — solid or ferruled stranded.

Will 3RH1344-1AD00 drop into a panel that was specified around 3RT1017-1AD02 without rewiring?

Mechanically yes — same S00 footprint, same 45 mm width, same DIN-rail clip. Electrically no: the 3RT1017-1AD02 is a main contactor with a coil and power contacts; the 3RH1344-1AD00 is an auxiliary block with no coil. You would need to rewire the control circuit to feed the auxiliary block from the main contactor's auxiliary terminals or a separate relay.

MPN
3RH1344-1AD00