Compact high-voltage squirrel-cage motor with IP54/IP55 and efficient air-to-air cooling (IC611) plus low-noise design, for continuous-duty power, metallurgy and cement applications.

| Frame | H355–H630 |
| Power Range | 185–2500 kW |
| Voltage | 6kV / 10kV |
| Frequency | 50Hz |
| Poles | 2 / 4 / 6 / 8 / 10 / 12 |
| Protection | IP44 / IP54 / IP55 |
| Cooling | IC611 (air-to-air) |
| Insulation | Class F (rise rated Class B) |
| Mounting | IMB3 |
| Duty | S1 (continuous) |
| Standards | JB/T 10315, GB 755 |
The YKK high-voltage three-phase asynchronous motor (frame H355–H630) is a totally-enclosed squirrel-cage motor with an air-to-air cooler, protection IP44 / IP54 / IP55 and IC611 cooling. It offers high efficiency, low noise, low vibration, light weight, reliable performance and easy maintenance, driving a wide range of machinery.
Rated voltage 6kV / 10kV. When ordering, specify model, mounting (IMB3), rated power, protection degree, cooling method, insulation class and synchronous speed. 2-pole motors rotate clockwise by default; counterclockwise must be stated at order.