Skip to main content
Siemens 3RH1122-2AD00 — Contactors

Siemens 3RH1122-2AD00 SIRIUS Auxiliary Contactor, Size S00,

MPN3RH1122-2AD00

Siemens SIRIUS auxiliary contactor, size S00, 2 NO instantaneous contacts, screw and snap-on mounting, IP20 front, 45 mm width, 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

3RH1122-2AD00 — Identification
ParameterValue
Contactor frame sizeS00
3RH1122-2AD00 — 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
3RH1122-2AD00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RH1122-2AD00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1122-2AD00 — 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
3RH1122-2AD00 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1122-2AD00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1122-2AD00 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It carries two normally-open (NO) instantaneous contacts and no NC or delayed contacts — a straight 2-pole make configuration for applications that need only positive switching on command. Rated operational current spans 10 A at 24 V, stepping down to 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V — the contactor's thermal capacity derates with voltage, so size the load path against the specific control voltage in your circuit, not just the 10 A headline. Mounts via screw or snap-on to a DIN rail, occupying 45 mm of rail width — a single module slot in most enclosures. The IP20 front protection means it's suited for enclosed panel use where tools and fingers stay out of the live zone.

RoHS compliance is indicated by a substance prohibition date of 07/01/2006, aligning with the EU RoHS directive's original effective date. No UL or CSA marks appear in the listing — verify jurisdictional acceptance if your panel requires them.

Integration notes

The screw terminals want a proper torque; spring-cage it is not, so keep a screwdriver with the right bit at the panel. Shock resistance is rated at 10 g for 5 ms and 5 g for 10 ms — adequate for most industrial panels but not for high-vibration mobile equipment without additional damping.

Frequently asked questions

What is the closest functional alternative to the 3RH1122-2AD00?

The 3RH2122-2AF00 is a peer in the same SIRIUS family but carries a different contact arrangement and coil voltage — verify the coil rating and NC/NO count before substituting; the 3RH1122-2AD00 is a 2 NO instantaneous contactor with no delayed switching.

MPN
3RH1122-2AD00