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Siemens 3RH2122-1RB40-ZX95 — Contactors

Siemens 3RH2122-1RB40-ZX95 SIRIUS Auxiliary Contactor, 24 VD

MPN3RH2122-1RB40-ZX95
Active

Siemens SIRIUS auxiliary contactor, size S00, 4-pole, 24 VDC coil with integrated diode suppression, screw and snap-on 35 mm DIN rail mounting, 73 mm depth.

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

3RH2122-1RB40-ZX95 — Identification
ParameterValue
Contactor frame sizeS00
3RH2122-1RB40-ZX95 — 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 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2122-1RB40-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH2122-1RB40-ZX95 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2122-1RB40-ZX95 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (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 onto 35 mm standard mounting rail
3RH2122-1RB40-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RH2122-1RB40-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2122-1RB40-ZX95 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2122-1RB40-ZX95 — Specifications
ParameterValue
At AC10 000 1/h

Product details

SIRIUS auxiliary contactor, 24 VDC coil, size S00

The 3RH2122-1RB40-ZX95: Rated switching capacity varies by voltage: 10 A at 24 V AC, 10 A at 230 V AC, 3 A at 400 V AC, and 1 A at 690 V AC. For DC switching, it handles 4.7 A at 60 V, 1.2 A at 220 V, and 0.26 A at 600 V.

The size S00 footprint measures 45 mm wide, 57.5 mm high, and 73 mm deep. Terminals accept 2 x (0.5…1.5 mm²), 2 x (0.75…2.5 mm²), or 2 x 4 mm² solid or stranded wire. Pollution degree 3 rated, suitable for industrial environments.

Frequently asked questions

How do I get current pricing and availability for 3RH2122-1RB40-ZX95?

Pricing and availability are confirmed at quote time against an RFQ through independent distribution channels.

Will 3RH2122-1RB40-ZX95 drop into a panel specified around 3RH2122-1BA40 without rewiring?

Both are size S00 auxiliary contactors with the same 45 mm width and 35 mm DIN rail mounting, so the mechanical fit is identical. The key difference is the coil voltage: 3RH2122-1RB40-ZX95 uses a 24 VDC coil with diode suppression, while 3RH2122-1BA40 uses a different coil voltage. Verify coil voltage compatibility before substitution.

What compliance documentation does this brand provide for 3RH2122-1RB40-ZX95?

The part is RoHS compliant with a substance prohibition date of 10/01/2009. As a Siemens SIRIUS component, it carries CE marking and is designed to IEC/EN 60947 standards.

MPN
3RH2122-1RB40-ZX95