3RH2122-2KM40-0LA0 - Siemens
MPN3RH2122-2KM40-0LA0
Contactor relay for railway, 2 NO + 1 NC, 220 V DC, 0.7... 1.25* US, with integrated suppressor diode, Size S00, Spring-type terminal suitable for PLC outputs
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Contactor frame size | S00 |
Ratings & Performance
| 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 | 10 A |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 4.7 A |
| Rated value @ 110 V | 3 A |
| Rated value @ 220 V | 1.2 A |
Control & Coil
| Parameter | Value |
|---|---|
| Control supply voltage type | DC |
Contacts & Poles
| Parameter | Value |
|---|---|
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
Connection & Mounting
| Parameter | Value |
|---|---|
| Conductor cross-section, solid or stranded | 2x (0,5 ... 4 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 2.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail |
| Side-by-side mounting | Yes |
Durability
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 30 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -40 ... +70 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
Mechanical
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 70 mm |
| Depth | 73 mm |
MPN
3RH2122-2KM40-0LA0