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Siemens 3RH2140-2XF40-0LA2 — Contactors

Siemens 3RH2140-2XF40-0LA2 SIRIUS Contactor Relay, 4 NO, 72-

MPN3RH2140-2XF40-0LA2
Active

Siemens SIRIUS contactor relay, size S00, 4 NO instantaneous contacts, coil rated 72–125 VDC, varistor surge suppression, screw and snap-on 35 mm DIN rail mounting, 73 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

3RH2140-2XF40-0LA2 — Identification
ParameterValue
Contactor frame sizeS00
3RH2140-2XF40-0LA2 — 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
3RH2140-2XF40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH2140-2XF40-0LA2 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2140-2XF40-0LA2 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail
Side-by-side mountingYes
3RH2140-2XF40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2140-2XF40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2140-2XF40-0LA2 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

Railway-rated contactor relay, SIRIUS S00 frame

It carries 4 normally open instantaneous contacts and is designed for screw and snap-on mounting onto 35 mm DIN rail, with a mounting position that allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward, plus standing or horizontal mounting — flexible for tight railway enclosures. Coil rated 72–125 VDC, with a holding current mean value of 7 mA and an inrush current peak of 1.1 A. The built-in varistor surge suppressor handles the arcing time of 10–15 ms and the DC operate time of 25–45 ms — no external snubber needed for standard inductive loads.

Mechanical integration and wiring

Dimensions: 73 mm deep, 45 mm wide, 70 mm high — fits the S00 footprint. The varistor suppressor is integral, so no additional space needed for an external RC module.

MPN
3RH2140-2XF40-0LA2