Switching capability across control voltages
The 3RH2131-1BC40: The 3 instantaneous contacts handle signal routing without delay; the product extension auxiliary switch option allows adding more contacts without changing the base unit.
Siemens 3RH2131-1BC40 SIRIUS Auxiliary Contactor
MPN3RH2131-1BC40
Siemens SIRIUS 3RH2131-1BC40 auxiliary contactor, size S00, 3 instantaneous contacts, screw and snap-on mounting onto 35 mm DIN rail, 45 mm width.
StockContact for availability
Lead timeIn Stock wk
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 ... 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 onto 35 mm standard mounting rail |
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 | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
Mechanical
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 57.5 mm |
| Depth | 73 mm |
Specifications
| Parameter | Value |
|---|---|
| At AC | 10 000 1/h |
Product details
Frequently asked questions
How do I get current pricing and availability for 3RH2131-1BC40?
Submit an RFQ through this listing.
What is 3RH2131-1BC40's listed depth on this Contactors line?
The depth is 73 mm, width 45 mm, height 57.5 mm — size S00 frame, compatible with standard 35 mm DIN rail mounting.
MPN
3RH2131-1BC40