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 The YD2 change-pole multi speed motor is one of the main derivative series of the Y2 series motor.We adopt the method of changing the winding connection way to change the number of poles and the output of the motor so as to match the load characteristic of the mechanical equipment. The noise，the starting torque，the vibration value and the outline mounting dimensions of the motor conform to IEC standard. It is of the features of small size，light weight，reliability service，solid structure and good-looking etc. It is capable of controlling speed and saving much of energy with manual control，contactors and controllers etc.

Applications:Widely used in such industry which have step changes of rotational speed to meet the requirements of load character,as machine tools, mining, metallurgy, textile, printing and dyeing, chemical industry arid agricultural machinery, etc.

Features:Simplify speed-changing systems by changing the connection to obtain different output and speed

Pole-changing mode:  Double-speed，triple-speed and four speed.