Glossary of Motor Terms

Small electrical motor

There are various definitions. In the age of AC motors, it referred to a motor with a rated output of less than 1 horsepower (750 W). Later on, in Japan, it sometimes referred to a motor of 70 W or less, but in recent years it is used to refer to a motor used for electrical equipment in automobiles, robots, and office equipment. Some drone motors weigh less than 400g, but can produce an output of 1 kW or more.

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