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Siemens 3RH1122-1AR10 — Contactors

Siemens 3RH1122-1AR10 SIRIUS Auxiliary Contactor, 2 NO, 10 A

MPN3RH1122-1AR10

Siemens SIRIUS auxiliary contactor, size S00, 3RH1122-1AR10, 2 NO instantaneous contacts, 10 A AC-12 at 24 V, screw and snap-on mounting, IP20 front protection.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1122-1AR10 — Identification
ParameterValue
Contactor frame sizeS00
3RH1122-1AR10 — 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
3RH1122-1AR10 — Control & Coil
ParameterValue
Control supply voltage typeAC
3RH1122-1AR10 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1122-1AR10 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (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
3RH1122-1AR10 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1122-1AR10 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1122-1AR10 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Rated operational current drops with voltage as you'd expect: 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V. That's the same contact stack, just derated by the switching arc energy. For 110 V control circuits it's rated 1 A. These numbers come from the maker's own table — match the voltage on your BOM line to the right row before you commit the part.

Fastens with a screw or snaps onto a DIN rail — pick whichever the panel layout prefers. The 45 mm width and 57.5 mm height fit the standard S00 footprint; depth is 72 mm including clearance for the terminals. Terminal accepts solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². AWG equivalents are 2x 20–16, 2x 18–14, or 1x 12. That's enough cross-section for daisy-chaining through multiple aux contacts without a separate terminal block.

RoHS compliance date is marked as July 1, 2006, which aligns with the EU RoHS directive. That's typical for industrial control panels but worth noting if the environment is unusually dusty or humid.

Frequently asked questions

What is the closest functional alternative — 3RH2122-2AV60?

The 3RH2122-2AV60 is a different variant in the same SIRIUS family, but it carries 2 NO + 2 NC contacts with a different terminal arrangement. The 3RH1122-1AR10 has only 2 NO contacts and a simpler wiring pattern. They share the S00 footprint and mounting, so a panel swap is physically possible, but the contact configuration is not identical — verify the control circuit schematic before substituting.

Where can I buy 3RH1122-1AR10?

This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time. No stock figures or lead-time numbers are published here.

What is the depth of 3RH1122-1AR10?

The listed depth is 72 mm. That includes the terminal clearance; the body itself is shallower. Width is 45 mm, height is 57.5 mm — standard S00 envelope.

What wire sizes does 3RH1122-1AR10 accept?

Solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². AWG equivalents: 2x 20–16, 2x 18–14, or 1x 12. That covers most control-circuit wiring without needing a ferrule.

MPN
3RH1122-1AR10