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Siemens 3RH1131-2BB40-ZW98 — Contactors

Siemens 3RH1131-2BB40-ZW98 SIRIUS Auxiliary Contactor, 24 VD

MPN3RH1131-2BB40-ZW98

Siemens SIRIUS auxiliary contactor, 3RH1131-2BB40-ZW98, 24 VDC coil, 10 A AC-12 rated, size S00, 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

3RH1131-2BB40-ZW98 — Identification
ParameterValue
Contactor frame sizeS00
3RH1131-2BB40-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
3RH1131-2BB40-ZW98 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1131-2BB40-ZW98 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1131-2BB40-ZW98 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1131-2BB40-ZW98 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1131-2BB40-ZW98 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1131-2BB40-ZW98 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

What this SIRIUS auxiliary contactor does

The 24 VDC coil draws 3.2 W closing and holding, so the power supply budget is flat: no inrush spike to size for. AC-12 rated at 10 A maximum, it handles pilot-duty loads like PLC inputs, relay coils, and indicator lamps without derating concerns at 24 V. Three normally-open instantaneous contacts (plus zero delayed, lagging, or make-before-break) give you a clean set of N.O. signal paths. Contact reliability is spec'd at one incorrect switching operation per 100 million at 17 V, 1 mA — meaning it's trustworthy for low-energy PLC-level signals, not just power circuits.

Size S00 footprint: 45 mm wide, 60 mm tall, 73 mm deep. Fastens with screw or snaps onto DIN rail.

Switching capacity across voltages

Rated operational currents vary by voltage and duty: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V. At 110 V it's rated 1 A; at 220 V, 0.27 A. These are the AC-12 values for resistive/pilot duty — use them for sizing the contactor's load circuit, not the coil circuit.

Frequently asked questions

What is the depth of 3RH1131-2BB40-ZW98?

73 mm. That's the dimension from the mounting surface to the farthest front point of the contactor body.

What conductor sizes fit the terminals?

Solid conductors from 0.25 mm² up to 2.5 mm². The terminals accept two conductors per clamp.

MPN
3RH1131-2BB40-ZW98