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Siemens 3RH1140-1BB40-ZW98 — Contactors

Siemens 3RH1140-1BB40-ZW98 SIRIUS Auxiliary Contactor, 24 VD

MPN3RH1140-1BB40-ZW98

Siemens SIRIUS auxiliary contactor, size S00, 24 VDC coil, 4 instantaneous NO contacts, screw and snap-on mounting, IP20 front protection.

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-ZW98 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1BB40-ZW98 — 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-ZW98 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1140-1BB40-ZW98 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1BB40-ZW98 — 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-ZW98 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1BB40-ZW98 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1BB40-ZW98 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

SIRIUS S00 auxiliary contactor — 4 NO, 24 VDC coil

The coil draws 3.2 W closing and holding. Screw and snap-on mounting to DIN rail fits standard 45 mm width enclosures. The IP20 front face suits protected panel environments.

Contact ratings by voltage

The auxiliary contacts are rated by utilization voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. These are thermal current ratings for switching auxiliary loads — not motor starting duty. The 6 kV rated surge voltage provides basic insulation coordination for control circuits.

Wire termination accepts solid conductors: 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or 2× 4 mm². AWG equivalents are 2× (20 to 16), 2× (18 to 14), or 1× 12. The screw terminals are sized for panel wiring with standard ferrule or solid conductors.

Pollution degree 3 means the contactor tolerates conductive pollution in industrial control panels. Shock resistance is 10g at 5 ms and 5g at 10 ms.

Frequently asked questions

Where can I buy the 3RH1140-1BB40-ZW98 and how do I 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 an RFQ for a firm price and lead time.

What is the depth of the 3RH1140-1BB40-ZW98?

The depth is 72 mm. Width is 45 mm and height is 57.5 mm, fitting the standard S00 contactor footprint.

What wire sizes does the 3RH1140-1BB40-ZW98 accept?

Solid conductors: 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or 2× 4 mm². AWG equivalents: 2× (20 to 16), 2× (18 to 14), or 1× 12.

What compliance documentation is available for the 3RH1140-1BB40-ZW98?

RoHS compliance is documented with a substance prohibition date of July 1, 2006. The SIRIUS series typically provides CE, UL, and CSA certifications — confirm specific certs with the datasheet at order.

Will the 3RH1140-1BB40-ZW98 drop into a panel specified around the 3RH2140-1BP40?

Both are SIRIUS size S00 contactors with the same 45 mm width and screw/snap-on mounting. The 3RH1140-1BB40-ZW98 has a 24 VDC coil and 4 NO contacts; the 3RH2140-1BP40 has a different coil voltage and contact arrangement. Mechanical fit is the same, but verify coil voltage and contact configuration before substitution.

MPN
3RH1140-1BB40-ZW98