Working withSPWM frequency converting devices,this motor is distinguished by its obvious energy-saving effects, good speed-adjusting performance,wide-range application .Therefore ,it is widelyapplied for NC tool machines,textile,chemistry and metallurgy,as well as energy-saving and speed-adjusting of ventilator and pumps.Beside,itis equipped with computer interface for realization of automatic control,an ideal device for stepless speed adjustment of AC motor.Power range: 0.25-800kw Protection Class: IP44, IP54.IP55 Rated Voltage: 380V Duty: S1