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Siemens 3RH2431-1AF00 — Contactors

Siemens 3RH2431-1AF00 SIRIUS Auxiliary Contactor, 3 NO, Size

MPN3RH2431-1AF00
Active

Siemens SIRIUS auxiliary contactor, size S00, 3 instantaneous NO contacts, 73 mm depth, 90 mm width, 57.5 mm height, screw and snap-on DIN rail mount, DC switching rated 10 A at 24 V.

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

Specifications

3RH2431-1AF00 — Identification
ParameterValue
Contactor frame sizeS00
3RH2431-1AF00 — 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 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2431-1AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RH2431-1AF00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2431-1AF00 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (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 onto 35 mm standard mounting rail
3RH2431-1AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000
3RH2431-1AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2431-1AF00 — Mechanical
ParameterValue
Width90 mm
Height57.5 mm
Depth73 mm
3RH2431-1AF00 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

This is a control-circuit switching device, not a main power contactor. It handles signal-level loads and pilot duty: the three NO contacts are rated for DC switching at 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 0.5 A at 440 V. For AC-15 duty at 230 V the contacts carry 10 A, and at 400 V they carry 3 A. The size S00 frame is the smallest in the SIRIUS contactor family, so this unit occupies minimal DIN-rail space: 73 mm deep, 90 mm wide, 57.5 mm tall. The side clearance required is 6 mm; forward and upward clearance is 10 mm each.

Switching performance and endurance

The contacts are instantaneous with an AC operating time of 4 to 15 ms. The operating voltage range at 50 Hz is 0.8 to 1.1 times rated value, and at 60 Hz it is 0.85 to 1.1 times rated value.

RoHS compliance is documented with a substance prohibition date of 10/01/2009. The terminal wiring accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded conductors.

Frequently asked questions

What is 3RH2431-1AF00's listed depth (73 mm) on this component line?

The depth is 73 mm, measured from the mounting surface to the furthest protruding point of the contactor body.

What is 3RH2431-1AF00's listed width (90 mm) on this component line?

The width is 90 mm, which is the standard S00 frame width for the SIRIUS auxiliary contactor series.

MPN
3RH2431-1AF00