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Siemens 3RH1344-1AM20-0KA0 — Contactors

Siemens 3RH1344-1AM20-0KA0 SIRIUS Auxiliary Contactor, 4 NO,

MPN3RH1344-1AM20-0KA0

Siemens SIRIUS 3RH1344-1AM20-0KA0, auxiliary contactor, size S00, 4 instantaneous NO contacts, screw and snap-on mounting, IP20 front, rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, depth 111 mm, width 45 mm, height 57.5 mm.

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

3RH1344-1AM20-0KA0 — Identification
ParameterValue
Contactor frame sizeS00
3RH1344-1AM20-0KA0 — 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
3RH1344-1AM20-0KA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz208 V
3RH1344-1AM20-0KA0 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1344-1AM20-0KA0 — 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)
Mounting methodscrew and snap-on mounting
3RH1344-1AM20-0KA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1344-1AM20-0KA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1344-1AM20-0KA0 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth111 mm

Product details

SIRIUS auxiliary contactor, size S00 — four NO, screw/snap-on

The contactor is rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the thermal current ratings that govern the load it can switch in a control circuit. Depth is 111 mm, width 45 mm, height 57.5 mm, so it fits the standard S00 footprint used across the SIRIUS 3RH1 family.

The 10 A at 24 V rating is the DC-13 (solenoid/contact coil) load capability — it handles the inrush of a small contactor or relay coil without welding the contacts. The 6 A at 230 V and 3 A at 400 V are AC-15 (control circuit) ratings, so this contactor is sized for switching PLC outputs, pilot lights, and solenoid valves in a 230 V or 400 V control panel. The four NO contacts are all instantaneous — no delayed, leading, or lagging switching — so it's a straight signal repeater, not a timing element.

Mounting and wiring flexibility

The solid wire range accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² — enough for control wiring up to 4 mm² stranded or solid without ferrules.

Same part, different passport — genuine Siemens regardless of which authorized region it originated from. Let me be transparent: the manufacturer warranty may be region-locked, but the part itself is identical to what you'd get from any Siemens channel.

Frequently asked questions

Where can I buy 3RH1344-1AM20-0KA0 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.

What is 3RH1344-1AM20-0KA0's listed depth?

The depth is 111 mm, which is standard for the SIRIUS S00 auxiliary contactor footprint.

What wire sizes does 3RH1344-1AM20-0KA0 accept?

The terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded wire.

MPN
3RH1344-1AM20-0KA0