Siemens SIRIUS power contactor, size S0, 3RT1024-1AN64, screw-type terminals, 45 mm width, 24 VDC coil.
| 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 | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 200 V |
| 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 | 140 mm |
It mounts on a 35 mm DIN rail per DIN EN 50022, with a 45 mm width that fits standard panel layouts.
The AC-2 rating at 400 V is 5.5 kW, so this contactor switches wound-rotor motor loads up to that power level without excessive contact wear. The AC-4 rating at 400 V is 12.5 A, covering plugging and inching duty cycles where the contacts make and break under load. Pollution degree 3 means the contactor is designed for conductive environments typical of industrial atmospheres.
Buyers need to know which current part to substitute, as 3RT1024-1AN64 is phased out.
Design engineers and buyers must confirm lifecycle status to plan BOMs and avoid discontinued parts.
Engineers validating fit need coil voltage, current rating, pole configuration, and dimensions.
Sourcing buyers need budget estimates and compare distributors for cost control.
Brokers and buyers need immediate availability to avoid production delays.
Maintenance techs and brokers look for universal replacements when Siemens parts are unavailable.
No related articles