The Y series is a series of totally enclosed self fan colled three-phrase squirre cage induction motors. It represents a new basic series of standardized design in China and a new prodcut of the 80's designed to replace the obsolete JO2 series. These motors have the following advantages: high efficiency, energy-saving, good performance, low noise and vibration, higher reliability. Her output ratings and mounting dimensions are corresponding to the standards of IEC. These motors are suitable for operation in general localities which do not contain inflammable, explosive and corrosive gases and suitable for driving machines which have no special requirement, such as: metal cutting machine tools, pumps, blowers, transportation machinery, agricultural machinery and food stuff machinery etc, these motors have better starting performance, so they are also adaptable to the machinery which have higher starting torque, such as compressors etc. This series motor has follow advantage: Lower temperature, Lower noise, higher efficiency, stronger overload capacity, attractive appearance