Siemens SIRIUS coupling relay 3RH6131-1KB40, size S00, 24 VDC coil, 1 NC + 3 NO auxiliary contacts, screw terminals, 35 mm DIN rail mount, 73 x 45 x 57.5 mm.
| Parameter | Value |
|---|---|
| Contactor frame size | S00 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 6 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 10 A |
| Rated value @ 24 V | 6 A |
| Rated value @ 110 V | 3 A |
| Rated value @ 220 V | 1.2 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | DC |
| Parameter | Value |
|---|---|
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| 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 DIN rail |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 30 000 000 |
| 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 | 73 mm |
| Parameter | Value |
|---|---|
| At AC | 10 000 1/h |
The Siemens 3RH6131-1KB40 is a SIRIUS coupling relay designed for switching auxiliary circuits in control panels. It carries a 24 VDC coil and is rated for 6 A at that voltage, with 1 NC and 3 NO auxiliary contacts.
The S00 contactor size keeps the footprint compact at 45 mm wide.
Built-in suppressor diode handles the coil's DC switching transient — no external flyback diode needed across the coil.
Rated for 30,000,000 mechanical cycles typical. RoHS compliance date is May 1, 2012.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
24 VDC coil, 6 A rated current at 24 V, 1 NC + 3 NO auxiliary contacts, screw terminals, 35 mm DIN rail mount, S00 size.
Both are S00 size coupling relays on the same 35 mm DIN rail footprint with identical contact configurations (1 NC + 3 NO). The 3RH6131-1BF40 uses a 24 VAC/DC coil; the 1KB40 is 24 VDC only. Wiring and panel cutout are the same, but verify coil voltage compatibility before swapping.
RoHS compliance date is May 1, 2012. The part carries the SIRIUS brand and is designed to IEC/EN standards typical for industrial control equipment.
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