yc series heavy-duty single-phase motors are suitable for small size machine tools and water pumps, especially for family workshops where only single-phase power supply is available. motors of this series are integrated with up-to-date design, manufacture with the best quality materials, possess the features of pleasant-looking appearance ,and meet the iec standard. 　 yc series motors are of ip44 totally enclosed fan-cooling type, rated outputs is 3hp or below, capacitor starting, within rated voltage and 50hz, the starting torque is three times more than the rated torque and 60hz is 2.75 times more. motors for 4hp or over are of capacitor start and run type. they all concentrate the advantages of high starting torque, smooth running, low temperature rising, low noise and greater overload performance. the designation number and nominative valves are all in conformity with iec standards.