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Siemens 3RH1122-2BB40-ZW96 — Contactors

Siemens 3RH1122-2BB40-ZW96 SIRIUS Auxiliary Contactor, 24 V

MPN3RH1122-2BB40-ZW96

Siemens SIRIUS auxiliary contactor, 3RH1122-2BB40-ZW96, 24 V DC coil, size S00, 45 mm width, 2 instantaneous NO contacts, 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

3RH1122-2BB40-ZW96 — Identification
ParameterValue
Contactor frame sizeS00
3RH1122-2BB40-ZW96 — 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
3RH1122-2BB40-ZW96 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1122-2BB40-ZW96 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1122-2BB40-ZW96 — 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
3RH1122-2BB40-ZW96 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1122-2BB40-ZW96 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1122-2BB40-ZW96 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

The Siemens 3RH1122-2BB40-ZW96 is a SIRIUS auxiliary contactor in size S00, with a 24 V DC coil drawing 3.2 W for both closing and holding. It carries two instantaneous normally-open contacts rated at 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the switching capacities for the auxiliary circuit, not a main power path.

Snap-on mounting to DIN rail or direct screw fixing — the same 45 mm wide footprint as the S00 contactor range. Terminals accept 2x (0.25 to 2.5 mm²) solid or 2x (24 to 14 AWG) stranded.

Contact ratings and switching reliability

The two NO contacts are instantaneous (no delayed or lagging switching). Storage and transport range extends to -55 to +80 °C.

Frequently asked questions

How do I get pricing and availability for 3RH1122-2BB40-ZW96?

Submit an RFQ through this listing. The part is sourced and quoted to order through independent distribution; current pricing and confirmed availability are provided at quote time.

What is the depth of 3RH1122-2BB40-ZW96?

The listed depth is 73 mm, with a width of 45 mm and height of 60 mm.

What wire sizes does 3RH1122-2BB40-ZW96 accept?

It accepts 2x (0.25 to 2.5 mm²) solid conductors or 2x (24 to 14 AWG) stranded.

Will 3RH1122-2BB40-ZW96 drop into a panel designed for 3RH2122-1BA40?

Both are SIRIUS size S00 auxiliary contactors with the same 45 mm width and snap-on DIN rail mounting. The 3RH1122-2BB40-ZW96 has a 24 V DC coil and 2 NO contacts; the 3RH2122-1BA40 has a different coil voltage and contact configuration. Panel cutouts and rail spacing are identical, but verify the coil voltage matches your control circuit before substitution.

What compliance documentation does Siemens provide for 3RH1122-2BB40-ZW96?

The part carries RoHS compliance dated July 1, 2006. Standard Siemens declarations of conformity for the SIRIUS range cover IEC/EN 60947-5-1. For specific UL, CSA, or REACH documentation, request it with your RFQ.

MPN
3RH1122-2BB40-ZW96