YEJ series electromagnetic braking three-phase asynchronous motors are totally enclosed fan cooled squirrel-cage motors with a direct-current electromagnetic brake. YEJ series motors have such advantages, as simple structure, easy installation and maintenance, quick braking, little vibration, low noise, long life and so on. They are widely used for such machines, as windless of crane, electrodynamics valve, metal-cutting tool, woods machines, textile machines, rubber-chemical machine, printing and forging machine, decelerator, and main drive and auxiliary drive of all kinds of tools which require quick and accurate stopping.