SIMOTICS HV H-compact 1LA4 (6 kV) · 490 kW · 6-pole · 400
MLFB: 1LA4400-6AN60
Siemens/Innomotics SIMOTICS HV H-compact high-voltage three-phase induction motor 1LA4, 490 kW, 6-pole (991 rpm), frame 400, 6 kV/50 Hz, current 59 A, efficiency 95.4%, cos φ 0.84, torque 4722 Nm, IM B3. Article No. (MLFB): 1LA4400-6AN60. Price and lead time on request (project/individual quote, not a stock item).
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Technical parameters
| Power | 490 kW |
| Number of poles | 6 |
| Synchronous speed | 1000 min⁻¹ |
| Rated speed | 991 min⁻¹ |
| Series | SIMOTICS HV |
| Frame material | cast iron |
| Shaft height | 400 mm |
| Frame size | 400 |
| Voltage 50 Hz | 6 kV |
| Design | IM B3 |
| Rated torque | 4722 Nm |
| Efficiency (4/4) | 95.4 % |
| Power factor cos φ | 0.84 |
| Rated current | 59 A |
| Efficiency at 75% load | 95.6 % |
| Moment of inertia | 21.2 kgm² |
| Locked-rotor current I/In | 5.5 |
| Locked-rotor torque M/Mn | 1.05 |
| Breakdown torque Mmax/Mn | 2.3 |
| Current stated at voltage | 6000 V |
| Bearing type | rolling |
| Power factor cos φ at 75% load | 0.81 |
| Max. external moment of inertia | 740 kgm² |