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Engineering ToolBox > Frequency and Speed of Electrical Motors
The velocity at which an induction motor will operate depends on the input power frequency and the number of electrical magnetic poles in the motor.
| Speed (RPM) | ||||
| Poles | Frequency 50 Hz | Frequency 60 Hz | ||
| Synchronous | Full Load | Synchronous | Full Load | |
| 2 | 3,000 | 2,850 | 3,600 | 3,450 |
| 4 | 1,500 | 1,425 | 1,800 | 1,725 |
| 6 | 1,000 | 950 | 1,200 | 1,150 |
| 8 | 750 | 700 | 900 | 850 |