Siemens SIRIUS 3RW40 soft starter
3RW4028-1BB04
SIRIUS 3RW40 soft starter, 18.5 kW at 400 V, 38 A at 40°C, 24 V AC/DC control supply. Integrated motor overload protection.
- Starter range
- 3RW40 · with overload
- Motor rating
- 18.5 kW
- Control voltage
- 24 V AC/DC
Product specification
3RW4028-1BB04
SIRIUS 3RW40 soft starter, 18.5 kW at 400 V, 38 A at 40°C, 24 V AC/DC control supply. Integrated motor overload protection.
Dimensions & specifications
kW values are a guide for 400 V motors at 40°C and normal starting (CLASS 10). Size against motor nameplate current and starting duty. 3RW30 requires separate overload protection.
Accessories & related parts
3RW4028-1BB04 — specifications & documents
SIRIUS 3RW40 soft starter, 18.5 kW at 400 V, 38 A at 40°C, 24 V AC/DC control supply. Integrated motor overload protection.
| Range | 3RW40 |
|---|---|
| Motor rating at 400 V | 18.5 kW |
| Rated current at 40°C | 38 A |
| Frame size | S0 |
| Main supply | 200–480 V AC |
| Control voltage | 24 V AC/DC |
| Terminals | Screw terminals |
| Motor overload protection | Integrated |
| Selection basis | Normal starting CLASS 10; verify motor current and starting duty |