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Siemens 3RH1344-2AF00 — Contactors

Siemens 3RH1344-2AF00 SIRIUS Auxiliary Contactor, 4 NO, Size

MPN3RH1344-2AF00

Siemens SIRIUS auxiliary contactor, 3RH1344-2AF00, 4 NO instantaneous contacts, size S00, 45 mm width, screw and snap-on mounting, IP20 front protection.

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

3RH1344-2AF00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1344-2AF00 — 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
3RH1344-2AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RH1344-2AF00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1344-2AF00 — 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
3RH1344-2AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1344-2AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1344-2AF00 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth114 mm

Product details

This is the part for extending control-circuit contact density on a contactor or relay base — it mirrors the main contactor's coil state to additional signal paths. Rated for 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V, the contact ratings cover the typical control-voltage range found in IEC panels. The 4 NO arrangement gives you four independent make contacts that close when the coil picks up — no overlap with NC or changeover contacts on this variant.

Mounts via screw and snap-on to DIN rail. Terminals accept 2x solid conductors from 0.25 to 2.5 mm². Depth is 114 mm, height 60 mm — check clearance to the gland plate if the panel is shallow.

RoHS compliance date is 01.07.2006, covering the EU RoHS directive.

Contact reliability and operating conditions

Shock resistance is 10g / 5 ms and 5g / 10 ms. Pollution degree 3, meaning it tolerates conductive pollution in industrial environments where occasional condensation occurs.

Frequently asked questions

Where can I buy 3RH1344-2AF00 and get current pricing?

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 price and lead-time commitment.

What is the closest functional alternative to 3RH1344-2AF00?

The 3RH2362-2AF00 is a peer in the same SIRIUS family but carries a different contact configuration — verify your control-circuit wiring before substituting. The 3RH1344-2AF00 has 4 NO contacts; the 3RH2362-2AF00 may differ in NO/NC count or coil voltage options.

What is the depth of 3RH1344-2AF00?

The depth is 114 mm. Combined with the 45 mm width and 60 mm height, the S00 footprint fits standard DIN-rail enclosures — verify clearance to the gland plate or door if the panel is shallow.

What terminal wire size does 3RH1344-2AF00 accept?

Each terminal accepts 2x solid conductors from 0.25 to 2.5 mm². Use ferruled stranded wire within the same cross-section range for reliable connections.

Will 3RH1344-2AF00 drop into a panel wired for 3RH2362-2AF00?

Both are S00 frame size with the same 45 mm width and DIN-rail snap-on mounting, so the mechanical fit is identical. However, the contact configuration differs — 3RH1344-2AF00 has 4 NO instantaneous contacts. Verify that your control circuit expects exactly 4 NO makes before swapping; if the original design used NC or changeover contacts from the 3RH2362-2AF00, rewiring is required.

What compliance documentation does Siemens provide for 3RH1344-2AF00?

RoHS compliance is confirmed with a substance prohibition date of 01.07.2006. The reference code per IEC 81346-2 is K. Protection class on the front is IP20. For specific UL, CSA, or REACH declarations, request the manufacturer's compliance package with your RFQ.

MPN
3RH1344-2AF00