SIMOTICS HV H-compact 1LA4 (6 kV) · 900 kW · 4-pole · 450
MLFB: 1LA4450-4AN60
Siemens/Innomotics SIMOTICS HV H-compact high-voltage three-phase induction motor 1LA4, 900 kW, 4-pole (1489 rpm), frame 450, 6 kV/50 Hz, current 108 A, efficiency 96.0%, cos φ 0.84, torque 5772 Nm, IM B3. Article No. (MLFB): 1LA4450-4AN60. Price and lead time on request (project/individual quote, not a stock item).
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Technical parameters
| Power | 900 kW |
| Number of poles | 4 |
| Synchronous speed | 1500 min⁻¹ |
| Rated speed | 1489 min⁻¹ |
| Series | SIMOTICS HV |
| Frame material | cast iron |
| Shaft height | 450 mm |
| Frame size | 450 |
| Voltage 50 Hz | 6 kV |
| Design | IM B3 |
| Rated torque | 5772 Nm |
| Efficiency (4/4) | 96 % |
| Power factor cos φ | 0.84 |
| Rated current | 108 A |
| Efficiency at 75% load | 96 % |
| Moment of inertia | 22 kgm² |
| Locked-rotor current I/In | 5.2 |
| Locked-rotor torque M/Mn | 0.95 |
| Breakdown torque Mmax/Mn | 2.25 |
| Current stated at voltage | 6000 V |
| Bearing type | rolling |
| Power factor cos φ at 75% load | 0.82 |
| Max. external moment of inertia | 438 kgm² |