YR series motor from 4kw-500kw, 2,4, 6, 8p, IP44,54 class F insulation YR series (IP44) motors are 3-phase asynchronous motors with a wound rotor for generaluses. They are the upgraded products of the latest design in China. Thegrade of power and measurements for installment are in line with I.E.C. internationalstandard. Their mutual relations are similar to those of Model DIN 42679of West ...