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Siemens 3RH2140-2BB40-ZX95 — Contactors

Siemens SIRIUS 3RH2140-2BB40-ZX95 Auxiliary Contactor, 24 VD

MPN3RH2140-2BB40-ZX95
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Siemens SIRIUS auxiliary contactor, 3RH2140-2BB40-ZX95, size S00, 4 NO, 24 VDC coil, screw and snap-on mounting on 35 mm rail.

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

Specifications

3RH2140-2BB40-ZX95 — Identification
ParameterValue
Contactor frame sizeS00
3RH2140-2BB40-ZX95 — 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
3RH2140-2BB40-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH2140-2BB40-ZX95 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2140-2BB40-ZX95 — 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 standard mounting rail
3RH2140-2BB40-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2140-2BB40-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2140-2BB40-ZX95 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm
3RH2140-2BB40-ZX95 — Specifications
ParameterValue
At AC10 000 1/h

Product details

It is designed for snap-on mounting onto a 35 mm standard mounting rail, with screw terminals accepting 2x (0.5 to 4 mm²) solid or stranded wire. The contactor occupies a 45 mm width, 70 mm height, and 73 mm depth, with a clearance of 10 mm upwards, forwards, and downwards, and 6 mm at the sides.

The main contacts are rated 10 A at 230 V AC (AC-1 resistive load), 3 A at 400 V AC, and 1 A at 690 V AC. For DC switching, the contactor is rated 10 A at 24 V, 4.7 A at 60 V, and 0.26 A at 600 V. The mechanical endurance is 30 million operations typical, and the maximum switching frequency is 10,000 cycles per hour at AC. These ratings mean the contactor is suited for signal-level and auxiliary control circuits in motor starter assemblies, not for direct motor load switching.

Relative humidity minimum 10%. The product is RoHS-compliant with substance prohibition date 10/01/2009.

Frequently asked questions

Where can I buy 3RH2140-2BB40-ZX95 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to receive current pricing and availability.

Will 3RH2140-2BB40-ZX95 drop into a panel that was specified around 3RH2140-1BP40 without rewiring?

Both are size S00 auxiliary contactors with the same mounting footprint on 35 mm rail, so the mechanical fit is identical. However, the coil voltage and contact configuration differ — the 3RH2140-2BB40-ZX95 has a 24 VDC coil and 4 NO contacts, while the 3RH2140-1BP40 has a different coil and contact arrangement. Verify the coil voltage and contact count match your circuit before substitution.

What compliance documentation does this brand provide for 3RH2140-2BB40-ZX95?

The product is RoHS-compliant with a substance prohibition date of 10/01/2009. The manufacturer typically provides CE, UL, CSA, and IEC declarations on request.

MPN
3RH2140-2BB40-ZX95