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Siemens 3RH2122-1AD00 — Contactors

Siemens 3RH2122-1AD00 SIRIUS Auxiliary Contactor, 2 NO Conta

MPN3RH2122-1AD00
Active

Siemens SIRIUS auxiliary contactor, size S00, 2 NO instantaneous contacts, screw and snap-on 35 mm DIN rail mounting, 45 mm width, 73 mm depth.

$20.32Ref. price · indicative, final on quote
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

3RH2122-1AD00 — Identification
ParameterValue
Contactor frame sizeS00
3RH2122-1AD00 — 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
3RH2122-1AD00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RH2122-1AD00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2122-1AD00 — 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 DIN rail
3RH2122-1AD00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2122-1AD00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2122-1AD00 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2122-1AD00 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Siemens SIRIUS 3RH2122-1AD00 — Auxiliary Contactor, Size S00

Rated for continuous duty in industrial environments with pollution degree 3, the contactor handles switching currents from 10 A at 24 V AC/DC down to 0.26 A at 600 V, covering a wide range of pilot-duty and auxiliary loads.

Switching Ratings and Contact Performance

Specific current ratings include 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 10 A at 230 V, 3 A at 400 V, 0.5 A at 440 V, 2 A at 500 V, 0.26 A at 600 V, and 1 A at 690 V. Arcing time is 10 to 15 ms at AC, and the contactor can sustain a mechanical switching rate of 10,000 operations per hour at DC, with a typical mechanical life of 30 million operations. The contactor accepts solid or stranded wire from 2x 0.5 mm² up to 2x 4 mm², with screw terminals rated for the full current range.

Mounting and Environmental Specs

Operating temperature range is -25 to +60 °C, storage from -55 to +80 °C, with relative humidity from 10% up to 100% (non-condensing).

Frequently asked questions

How do I get current pricing and availability for 3RH2122-1AD00?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels.

What is the difference between 3RH2122-1AD00 and 3RH2122-2AF00?

The 3RH2122-2AF00 is a peer variant with a different contact configuration or coil voltage. Both share the S00 frame, DIN rail mount, and 45 mm width, but the 2AF00 may have a different contact arrangement or auxiliary contact block. Verify the contact configuration against your schematic before substituting.

What compliance documentation is available for 3RH2122-1AD00?

The part carries a RoHS compliance date of 10/01/2009. Standard Siemens SIRIUS documentation includes CE, UL, CSA, and IEC certifications; request the specific declaration or certificate with your RFQ.

MPN
3RH2122-1AD00