... comsuption, high starting torque,low noise, little vibration. Series Three-Phase Asynchronous Motors Y Specifications:1) Frame sizes ... Materials: cast iron, aluminum(FRAME 63-160)8) EFF: EFF3, EFF2, EFF19) Poles: 2, 4, 6 ... , 8,1010) Cooling method: IC411 (total-enclosed fan-cooled ... can be designed according to customers' requirements Series three-phase asynchronous motor Y