Siemens SIRIUS auxiliary contactor, 4 NO, size S00, 73 mm depth, 90 mm width, 57.5 mm height, screw and snap-on DIN rail mounting.
| 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 | 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 |
| 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.) | 5 000 000 |
| Durability with aux. switch block (cycles, typ.) | 5 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 90 mm |
| Height | 57.5 mm |
| Depth | 73 mm |
| Parameter | Value |
|---|---|
| At AC | 10 000 1/h |
The Siemens 3RH2440-1BM40 is a SIRIUS auxiliary contactor, size S00, with 4 normally-open instantaneous contacts.
Wire terminals accept 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), or 2x 4 mm² solid or stranded.
Relative humidity minimum 10%. RoHS compliance date is 2009-10-01, so it meets the EU directive. The auxiliary switch extension option means you can add more contacts without replacing the base block.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time — submit an RFQ for a firm number.
Both are SIRIUS size S00 auxiliary contactors on 35 mm DIN rail, so the footprint and mounting are identical. The 3RH2440-1BM40 carries 4 NO contacts; the 3RH2140-1BP40 has a different contact arrangement. Check your schematic for NO/NC count before swapping — the mechanical fit is the same.
Depth 73 mm, width 90 mm, height 57.5 mm. Clearances: 10 mm upwards/forwards/downwards, 6 mm at the side.
RoHS compliant per substance prohibition date 2009-10-01. The SIRIUS series carries CE marking for the European market; UL and CSA listings are standard for the platform but confirm on the specific variant if your panel requires a marked file.
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