YVF2 variable frequency and regulating speed motor is suitable for running in frequency changer and speed regulation system which the power is supplied by a frequency converter. This new series of product designed unitedly in the country can be mated with all kinds of SPWM frequency changer and speed regulation devices and is equipped with a separate cooling fan which ensure the motor for good cooling at various rotating speed. They can be used in machine tool, metallurgic industry , textile, printing and dyeing, transportation, chemical industry, mine and for speed regulation of fans and pumps. Technical data: Power range: 0.55-200kw Centre height of frame:80-315mm Voltage:380V or order Frequency:50Hz or 60Hz Protection type:IP54 Heat-resistant classified: 130(designed by F class) Duty type: S1