3AC pole-changing motors
Standard three-phase motors
Pole-changing three-phase motor - Constant torque
| Motor frame size | 250M |
|---|---|
| Number of poles | 4/2 |
| Output power | 47/54 kW |
| Synchronous speed at 50 Hz | 1500/3000 min-1 |
| Application | Constant torque |
| Housing material | Grey cast iron |
| Voltage | 400 V 3AC |
| Frequency | 50 Hz |
| Winding / connection | Δ/YY - Dahlander |
| Degree of protection | IP55 |
| Insulation class | F |
| Thermal protection | PTC 150 °C |
| Terminal box | Top |
| Mounting arrangement | B3 / B5 / B14 / B35 / B34 / V1 |
The stated speeds are synchronous speeds. Rated speeds under load, currents, weights and detailed dimensions are available on request.
Illustrative image; the design depends on the selected mounting arrangement.
Pole-changing three-phase motor - Constant torque
| Motor frame size | 250M |
|---|---|
| Number of poles | 6/4 |
| Output power | 25/35 kW |
| Synchronous speed at 50 Hz | 1000/1500 min-1 |
| Application | Constant torque |
| Housing material | Grey cast iron |
| Voltage | 400 V 3AC |
| Frequency | 50 Hz |
| Winding / connection | Y/Y - Separate windings |
| Degree of protection | IP55 |
| Insulation class | F |
| Thermal protection | PTC 150 °C |
| Terminal box | Top |
| Mounting arrangement | B3 / B5 / B14 / B35 / B34 / V1 |
The stated speeds are synchronous speeds. Rated speeds under load, currents, weights and detailed dimensions are available on request.
Illustrative image; the design depends on the selected mounting arrangement.
Pole-changing three-phase motor - Constant torque
| Motor frame size | 250M |
|---|---|
| Number of poles | 8/4 |
| Output power | 28/38 kW |
| Synchronous speed at 50 Hz | 750/1500 min-1 |
| Application | Constant torque |
| Housing material | Grey cast iron |
| Voltage | 400 V 3AC |
| Frequency | 50 Hz |
| Winding / connection | Δ/YY - Dahlander |
| Degree of protection | IP55 |
| Insulation class | F |
| Thermal protection | PTC 150 °C |
| Terminal box | Top |
| Mounting arrangement | B3 / B5 / B14 / B35 / B34 / V1 |
The stated speeds are synchronous speeds. Rated speeds under load, currents, weights and detailed dimensions are available on request.
Illustrative image; the design depends on the selected mounting arrangement.