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Siemens 3RH1140-1BB40-ZW95 — Contactors

Siemens 3RH1140-1BB40-ZW95 SIRIUS Auxiliary Contactor, 24 V

MPN3RH1140-1BB40-ZW95

Siemens SIRIUS auxiliary contactor, size S00, 24 V DC coil, 4 NO contacts, 10 A at 24 V, screw and snap-on mounting, IP20 front, 45 mm width.

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

3RH1140-1BB40-ZW95 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1BB40-ZW95 — 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
3RH1140-1BB40-ZW95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1140-1BB40-ZW95 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1BB40-ZW95 — 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
3RH1140-1BB40-ZW95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1BB40-ZW95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1BB40-ZW95 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

The Siemens 3RH1140-1BB40-ZW95 is a SIRIUS auxiliary contactor in size S00, rated for a 24 V DC coil with a closing and holding power of 3.2 W. It carries 4 instantaneous NO contacts (leading contact 0, delayed switching 0, lagging switching 0), rated at 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V.

Width is 45 mm, height 57.5 mm, depth 72 mm — fits standard DIN-rail enclosures with screw or snap-on mounting. The front carries IP20 protection; the terminal block accepts solid conductors: 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), or 2x 4 mm² (AWG equivalents: 2x 20…16, 2x 18…14, 1x 12).

Lifecycle status is current production. Shock resistance is 10g / 5 ms and 5g / 10 ms. Pollution degree 3. RoHS compliance date is 07/01/2006.

Frequently asked questions

What is the closest functional second-source for 3RH1140-1BB40-ZW95?

The peer 3RH2140-1BP40 is a similar SIRIUS auxiliary contactor, but verify coil voltage and contact configuration — this unit uses a 24 V DC coil with 4 NO contacts; the peer may differ in contact arrangement or coil rating.

Where can I buy 3RH1140-1BB40-ZW95?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time.

What compliance documentation does Siemens provide for 3RH1140-1BB40-ZW95?

RoHS compliance is noted with a substance prohibitance date of 07/01/2006. The part carries IP20 front protection and surge voltage resistance rated at 6 kV.

MPN
3RH1140-1BB40-ZW95