Skip to main content
Siemens 3RH1140-2BB40-ZX95 — Contactors

Siemens 3RH1140-2BB40-ZX95 SIRIUS Auxiliary Contactor, 24 VD

MPN3RH1140-2BB40-ZX95

Siemens SIRIUS auxiliary contactor, 3RH1140-2BB40-ZX95, 24 VDC coil, 4 NO contacts, size S00, 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

3RH1140-2BB40-ZX95 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-2BB40-ZX95 — Ratings & Performance
ParameterValue
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
3RH1140-2BB40-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1140-2BB40-ZX95 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-2BB40-ZX95 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1140-2BB40-ZX95 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
3RH1140-2BB40-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-2BB40-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1140-2BB40-ZX95 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It carries 4 normally-open instantaneous contacts and no delayed, leading, or lagging contacts, so it's a straight four-pole make switch for control logic or status indication. The magnet coil is rated 24 V DC with a closing and holding power draw of 3.2 W. That's a continuous-duty coil — it stays energized as long as the control voltage is present, so factor the 3.2 W into your 24 VDC power-supply budget. The contacts are rated 10 A at AC-12, which covers resistive and solid-state loads in control circuits; for inductive switching at higher voltages, derate per the 110 V (1 A), 220 V (0.27 A), 230 V (6 A), 400 V (3 A), 500 V (2 A), and 690 V (1 A) values (–).

Mounts by screw or snap-on onto a DIN rail. The size S00 footprint — 45 mm wide, 60 mm high, 73 mm deep — fits standard control-panel layouts. No side clearance is required (: 0 mm at the side), so you can pack units tight on the rail. The shock resistance is 10g / 5 ms and 5g / 10 ms, which is typical for industrial panel gear — no special isolation needed for normal machine vibration.

Frequently asked questions

What are the key ratings for this auxiliary contactor?

Coil is 24 V DC, 3.2 W. Contacts: 4 NO, rated 10 A at AC-12. For inductive loads at higher voltages, use the derated values: 1 A at 110 V, 0.27 A at 220 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V (–). Surge voltage resistance is 6 kV.

What is the physical size and mounting?

Size S00: 45 mm wide, 60 mm high, 73 mm deep. Screw or snap-on DIN-rail mount. Zero side clearance needed. Front IP20.

MPN
3RH1140-2BB40-ZX95