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Siemens 3RH1244-1AP00 — Contactors

Siemens SIRIUS 3RH1244-1AP00 Auxiliary Contactor, 4 NO, S00,

MPN3RH1244-1AP00

Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, 45 mm width, 57.5 mm height, 111 mm depth.

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

3RH1244-1AP00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1244-1AP00 — 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
3RH1244-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RH1244-1AP00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1244-1AP00 — 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
3RH1244-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1244-1AP00 — Environmental
ParameterValue
Installation altitude, max.2 000 m
3RH1244-1AP00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth111 mm

Product details

It's rated for 10 A at 24 V, with a switching capacity that drops to 1 A at 690 V — so the contact rating is voltage-dependent, and the 24 V figure is the one that drives the real load capability in a typical 24 VDC control circuit.

The front is IP20 finger-safe. Wiring accepts solid conductors: 2x 0.5...1.5 mm², 2x 0.75...2.5 mm², or 2x 4 mm² per terminal — enough for paralleled control leads or a single heavy feed.

Contact ratings and duty

The 4 NO contacts are instantaneous — no leading, lagging, or delayed switching. Rated operational current at 24 V is 10 A; at 110 V it's 1 A; at 230 V it's 6 A; at 400 V it's 3 A; at 500 V it's 2 A; at 690 V it's 1 A. The 50 Hz rated voltage is 230 V, 60 Hz rated voltage is 230 V. Mechanical endurance is 10,000,000 operations typical.

Pollution degree 3 (industrial environment). Shock resistance: 10g / 5 ms and 5g / 10 ms. RoHS compliance date is 01.07.2006.

Frequently asked questions

What is the closest functional second-source for 3RH1244-1AP00?

The 3RH2440-1AP00 is a peer in the same SIRIUS auxiliary contactor family, but it carries different contact configurations — verify your specific NO/NC count and terminal arrangement before substituting.

Will 3RH1244-1AP00 drop into a panel specified around 3RH2440-1AP00?

Both are size S00 with the same 45 mm width and snap-on DIN rail mounting, so the footprint is identical. The difference is in the contact arrangement — 3RH1244-1AP00 has 4 NO instantaneous contacts, while the 3RH2440-1AP00 may differ. Check your schematic before swapping.

How do I get current pricing and availability for 3RH1244-1AP00?

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 commitment.

What compliance documentation does Siemens provide for 3RH1244-1AP00?

The part carries a RoHS compliance date of 01.07.2006. Standard Siemens SIRIUS documentation includes the declaration of conformity and CE marking; specific UL or IEC certificates should be verified against the nameplate marking on the unit.

MPN
3RH1244-1AP00