Skip to main content
Siemens 3RH2140-2AN20 — Contactors

Siemens SIRIUS 3RH2140-2AN20 Auxiliary Contactor, 4 NO Conta

MPN3RH2140-2AN20
Active

Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 73 x 45 x 70 mm, screw and snap-on 35 mm DIN rail mounting, -25 to +60 °C operating range.

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

Specifications

3RH2140-2AN20 — Identification
ParameterValue
Contactor frame sizeS00
3RH2140-2AN20 — 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
3RH2140-2AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz220 V
3RH2140-2AN20 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2140-2AN20 — 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
3RH2140-2AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2140-2AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2140-2AN20 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm
3RH2140-2AN20 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It carries four normally-open instantaneous contacts, each rated for the full load-break duty across the voltage range. At 230 V AC the contacts handle 10 A; at 24 V DC they also carry 10 A, dropping to 4.7 A at 60 V DC and 1.2 A at 220 V DC. The arcing time sits between 10 and 15 ms, and the mechanical life on the contactor typical is 30 million operations — out here in the grease, that's the kind of number that says you won't be swapping this one every other PM cycle. For a panel builder squeezing contacts into a crowded gland plate, that 45 mm width and the ability to rotate the block without extra bracketing saves real time on the build.

Relative humidity minimum is 10 %. The substance prohibition date of 10/01/2009 confirms RoHS compliance for the European market.

Frequently asked questions

Where can I buy 3RH2140-2AN20 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for a firm quote.

What are the key ratings of 3RH2140-2AN20?

It has 4 normally-open instantaneous contacts. Rated switching current is 10 A at 230 V AC and 10 A at 24 V DC, with lower ratings at higher voltages (1.2 A at 220 V DC, 3 A at 400 V AC). Mechanical life is 30 million operations typical.

What is the mounting and size of 3RH2140-2AN20?

Dimensions are 73 mm deep, 45 mm wide, and 70 mm high. It mounts on 35 mm DIN rail via screw or snap-on, with ±180° rotation and ±22.5° tilt possible on a vertical surface.

MPN
3RH2140-2AN20