Skip to main content
Siemens 3RH1431-1AP00 — Contactors

Siemens 3RH1431-1AP00 SIRIUS Auxiliary Contactor, 3 NO + 0 N

MPN3RH1431-1AP00

Siemens SIRIUS auxiliary contactor, 3RH1431-1AP00, size S00, 3 NO instantaneous contacts, screw and snap-on mounting, 24 VDC coil, 10 A at 24 V.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RH1431-1AP00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1431-1AP00 — 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
3RH1431-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RH1431-1AP00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1431-1AP00 — 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
3RH1431-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000
3RH1431-1AP00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1431-1AP00 — Mechanical
ParameterValue
Width90 mm
Height57.5 mm
Depth72 mm

Product details

The 3RH1431-1AP00: Rated to switch 10 A at 24 V, it handles control-circuit loads at 110 V (1 A), 230 V (6 A), 400 V (3 A), 500 V (2 A), and 690 V (1 A). The coil draws 0.8–1.1 A at 50 Hz and 0.85–1.1 A at 60 Hz.

Three NO contacts give you three independent signal paths — common for interlocking, status feedback, or extending a PLC output. The 5 million mechanical cycles typical life means it'll outlast most machine rebuilds in a dry panel. Contact reliability is rated at one incorrect operation per 100 million cycles at 17 V, 1 mA — so it's trustworthy for dry-circuit logic signals, not just power switching. Screw terminals accept 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² — solid or stranded. That's enough for control wiring up to 4 mm² on the same terminal.

Size S00 footprint: 90 mm wide, 57.5 mm tall, 72 mm deep. Screw it down or snap it onto a DIN rail — both methods are listed. Shock-rated at 10g / 5 ms and 5g / 10 ms — fine for most industrial panels, but worth noting for high-vibration applications like near a large motor or on mobile equipment. An auxiliary switch block can be added to the front (product extension auxiliary switch is supported), so you're not stuck with the three NO contacts if the job grows.

RoHS compliance date is 2006-07-01 (substance prohibition), so it meets the EU RoHS directive.

Frequently asked questions

Will the 3RH1431-1AP00 drop into a panel specified around the 3RT1017-1AP01?

Not as a direct swap. The 3RT1017-1AP01 is a power contactor for motor loads; the 3RH1431-1AP00 is an auxiliary contactor with only control-circuit contacts. It shares the same S00 frame and mounting footprint, so it fits the same DIN rail space, but it won't carry main motor current.

What are the key switching ratings?

10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V — all on the three NO contacts. The coil draws 0.8–1.1 A at 50 Hz or 0.85–1.1 A at 60 Hz.

MPN
3RH1431-1AP00