3 phase induction motor is derived from Y series motors,it can change ... for the JOD2 series .The speed of this series motor can be changed step by step accroding to the requirements ... simplifying the system of speed variation.This series of motor has great starting torque and low noise and vibration, ... metallurgy and mine,etc.The degree of protection of the motor is of IP44, cooling mode is IC0141,and B ...