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Siemens 3RH1140-1AS00 — Contactors

Siemens 3RH1140-1AS00 SIRIUS Auxiliary Contactor, 4 NO, 10A

MPN3RH1140-1AS00

Siemens SIRIUS auxiliary contactor, size S00, 4 NO contacts, 10 A at 24 V, 500 V rated, IP20 front, screw and snap-on mounting.

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

3RH1140-1AS00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1AS00 — 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
3RH1140-1AS00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz500 V
3RH1140-1AS00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1AS00 — 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
3RH1140-1AS00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1AS00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1AS00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Its 4 normally-open (NO) instantaneous contacts handle rated currents from 10 A at 24 V down to 1 A at 690 V, so it matches the coil and signal loads typical in 24 VDC control panels while also supporting higher-voltage auxiliary circuits up to 500 V AC. Screw and snap-on mounting lets you clip it directly onto a DIN rail without tools, saving assembly time.

The size S00 footprint (45 mm wide, 57.5 mm high, 72 mm deep) fits standard control panel layouts. Solid wire capacity: accepts 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² — covers most control wiring without lugs.

Shock resistance: 10g for 5 ms and 5g for 10 ms, suitable for industrial machinery and conveyor systems. Mechanical life typical of SIRIUS contactors: 30 million operations, with contact reliability of one incorrect switching per 100 million at 17 V, 1 mA — important for low-energy signal circuits where oxide films can cause intermittent faults.

MPN
3RH1140-1AS00