Its 45 mm width and 72 mm depth let it slot into existing S00 footprints without re-drilling the backplate. Mounting is screw or snap-on, so a failed unit can be swapped inside a live panel safely. That makes this contactor well-suited for PLC input circuits or other dry-switching applications where oxide films can cause intermittent failures. Front-face protection is IP20, which meets the usual requirement for enclosed panel mounting.
Siemens 3RH1122-1AP00 SIRIUS Auxiliary Contactor, 2 NO, S00
MPN3RH1122-1AP00
Siemens SIRIUS auxiliary contactor, 3RH1122-1AP00, size S00, 2 NO, 72 mm depth, IP20, screw and snap-on mounting.
$20.00Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S00 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 6 A |
| Rated value @ 24 V | 10 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.27 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 230 V |
| Parameter | Value |
|---|---|
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm² |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Mounting method | screw and snap-on mounting |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 30 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 57.5 mm |
| Depth | 72 mm |
Product details
Frequently asked questions
What are the key dimensions of the 3RH1122-1AP00?
Width 45 mm, height 57.5 mm, depth 72 mm. This matches the standard S00 footprint.
What conductor sizes does the solid terminal accept?
The screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm².
MPN
3RH1122-1AP00