Siemens SIRIUS auxiliary contactor, Size S00, 24 VDC coil, 3 NO contacts, 10 A at 24 V, screw and snap-on mounting for 35 mm DIN rail.
| 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 ... 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 standard mounting rail |
| 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 | 70 mm |
| Depth | 73 mm |
| Parameter | Value |
|---|---|
| At AC | 10 000 1/h |
The Siemens SIRIUS 3RH2131-2BB40-ZW96 is a Size S00 auxiliary contactor with a 24 VDC coil, three normally open instantaneous contacts, and a rated thermal current of 10 A at 24 V.
The 24 VDC coil draws 4 W for closing and holds at 4 W — a continuous-duty magnet that stays cool in a sealed panel. The three NO contacts are rated for 10 A at 24 V, 4.7 A at 60 V, and 3 A at 110 V, so it handles signal-level loads and small pilot-duty solenoids across a range of control voltages.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
The depth is 73 mm.
The width is 45 mm.
Both are Size S00 auxiliary contactors on the same 45 mm wide, 35 mm DIN-rail footprint, so the mechanical fit is identical. The 3RH2131-2BB40-ZW96 carries three NO contacts versus the 3RH2122-1BA40's contact configuration, so verify your circuit's contact count before swapping — no wiring changes for the coil or mounting.
The part is RoHS compliant with a substance prohibition date of 10/01/2009. Siemens typically supplies a declaration of conformity covering the relevant EU directives (Low Voltage, EMC) for SIRIUS contactors; specific UL or IEC certifications should be verified from the manufacturer's documentation.
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