Y series three-phase induction electric motors, produced according to the ZB K22 007-88 Standard,have such characteristics as high efficiency,low noise, slight vibration,high locked rotor torque and reliable operation. The Y series electric motors apply to drive machinery with no special property requirements.The rated voltage of Y series electric motors can be made 220V,380V, 440V,660V while the frequency of the electric motor can be 50Hz or 60Hz.The mounting dimension and power grade of Y series electric motors both reach IEC standard.The protection degree provided by motor enclosure is IP44 and the cooling form is IC0141,Class B or Class F insulation is adopted.The electric motors can be operated constantly at environmental temperature of not higher than 40? C. Products derived from Y series electric motors:YA series increased safety three-phase induction electric motors;YA-X series increased safety three-phase induction electric motors for special use in planet decelerators(X1-X11);YB series flameproof three-phase induction electric motors;YB- X series flameproof three-phase induction electric motors for special use in planet decelerators(X1-X11);Y-X series three phase induction electric motors for special use in planet decelerators(X1-X11);YSF and YT series three-phase induction electric motors for special use in axial blowers;YD series change-pole and multi-speed three-phase induction electric motors;YEJ series electro-magnetic brake three-phase induction electric motors;YLT,YLZ and YSCl series three-phase induction electric motors for special use in cooling towers. The Company Electric Motors Research Institute can design and produce various special electric motors according to the requirements of consumers and will provide perfect technical service.