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Siemens 3RH2122-1AM20 — Contactors

Siemens 3RH2122-1AM20 SIRIUS Auxiliary Contactor, S00, 2 NO,

MPN3RH2122-1AM20
Active

Siemens SIRIUS auxiliary contactor, size S00, 2 NO instantaneous contacts, 24 VDC coil, screw and snap-on 35 mm DIN rail mounting, 73 mm depth × 45 mm width × 57.5 mm height.

$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

3RH2122-1AM20 — Identification
ParameterValue
Contactor frame sizeS00
3RH2122-1AM20 — 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
3RH2122-1AM20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz208 V
3RH2122-1AM20 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2122-1AM20 — 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
3RH2122-1AM20 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH2122-1AM20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2122-1AM20 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RH2122-1AM20 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It carries two normally-open instantaneous contacts rated at 10 A at 24 VDC, with a 24 VDC coil that pulls in reliably across the 0.8 to 1.1 x rated voltage band at 50/60 Hz.

The two NO contacts handle a range of DC loads: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, 0.26 A at 600 V, and 1 A at 690 V. AC switching covers 10 A at 230 V, 3 A at 400 V, and 2 A at 500 V.

Rated for pollution degree 3 (industrial environments with conductive or dry non-conductive pollution). Relative humidity minimum is 10 %. The substance prohibition date of 10/01/2009 aligns with RoHS compliance timing. Current lifecycle stage per manufacturer records — no end-of-life notification on file, meaning it remains a standard catalog item for new panel builds and BOM-frozen designs alike.

Frequently asked questions

What are the key dimensions for panel layout?

Width is 45 mm, depth is 73 mm, height is 57.5 mm. Clearance requirements: 10 mm upward, 10 mm forward, 10 mm downward, 6 mm at the sides.

What compliance documentation is available for 3RH2122-1AM20?

The part carries a substance prohibition date of 10/01/2009, consistent with RoHS compliance. Pollution degree 3 rating covers industrial environments. Full IEC and UL documentation is standard for the SIRIUS product family — request specific certificates with your RFQ.

MPN
3RH2122-1AM20