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Siemens 3RH2140-1AQ00 — Contactors

Siemens 3RH2140-1AQ00 SIRIUS Auxiliary Contactor, 4 NO, S00

MPN3RH2140-1AQ00
Active

Siemens SIRIUS auxiliary contactor, 3RH2140-1AQ00, size S00, 4 NO instantaneous contacts, 10 A rated at 24 V / 230 V, screw and snap-on 35 mm DIN rail.

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

Specifications

3RH2140-1AQ00 — Identification
ParameterValue
Contactor frame sizeS00
3RH2140-1AQ00 — 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
3RH2140-1AQ00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz380 V
3RH2140-1AQ00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2140-1AQ00 — 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 DIN rail
3RH2140-1AQ00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2140-1AQ00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2140-1AQ00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2140-1AQ00 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It's rated 10 A at both 24 V and 230 V — the same contact rating across the low-voltage control and standard line-voltage circuits, so you don't have to derate between a 24 VDC PLC output and a 230 VAC motor starter interlock.

The S00 frame is 45 mm wide and 73 mm deep — a standard slot that fits alongside a contactor or overload relay in the same rail segment.

Four instantaneous NO contacts handle resistive and lightly inductive loads. At 60 V the rating drops to 4.7 A, at 110 V to 3 A, at 220 V to 1.2 A, and at 400 V to 3 A — the curve follows the contact gap and arc-quenching design. DC switching is limited: 0.5 A at 440 V, 0.26 A at 600 V, 1 A at 690 V. Arcing time runs 10 to 15 ms; pick-up and drop-out at AC is 4 to 15 ms. Mechanical life is typical 30 million operations.

MPN
3RH2140-1AQ00