Siemens SIRIUS power contactor, size S0, 3RT1024-1BB40-ZW96, 24 VDC coil, 7.5 kW rated power at 690 V, screw terminals, DIN rail mount.
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-4 @ 400 V | 12.5 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 7.5 kW |
| Rated value @ 690 V | 7.5 kW |
| Rated value @ 230 V | 6 A |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 2 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.3 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | DC |
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | fuse gL/gG: 63 A |
| Short-circuit coordination type 2, fuse | fuse gL/gG: 25 A |
| Aux. switch short-circuit protection, fuse | fuse gL/gG: 10 A |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Side-by-side mounting | Yes |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 85 mm |
| Depth | 101 mm |
It carries a 24 VDC coil with a closing and holding power of 5.4 W each, and is rated for 7.5 kW at both 500 V and 690 V. The AC-4 switching current at 400 V is 12.5 A, covering demanding reversing or inching duty cycles.
The 45 mm width and 85 mm height fit standard S0 panel layouts; depth is 101 mm. Side-by-side mounting is allowed with a 6 mm gap to adjacent devices for thermal dissipation.
For type 1 coordination (contactor may need replacement after fault), the fuse can go up to 63 A.
Submit an RFQ through this listing. The part is sourced to order via independent distribution; pricing and stock levels are confirmed at quote time.
The depth is 101 mm, which fits standard S0-size contactor panel layouts.
The screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm² stranded; AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8.
Both are S0-size SIRIUS contactors sharing the same 45 mm width and DIN-rail footprint, so mechanical fit is identical. The key difference is the coil voltage — this unit uses 24 VDC versus the 3RT1023-1AL20's coil rating. Verify coil supply before substitution.
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