... 3.EXPERIENCED FOR 5 YEARS 4.LOW NOISE & ENERGY SAVING YD Series ac motor General DescriptionYD series change-pole multi-speed ... . It can make the whole structures compact, energy saving. The YD series motor is the same as Y series motor in ... (S1)Structure and mounting arrangement (motor)Frame size of 80-160:(IM)B3,B5,B6,B7,B8,B35,V1,V3,V5 ... ,B35,V1Frame size of 250-355:(IM)B3,B35,V1 YD Series ac motor