YZR series motors are special products used to drive various types of lifting and metallurgical machinery and other similar equipments with large overload capacity and high mechanical strength, compact structure, convenient control, simple use and maintenance, etc. They are especially suitable for short or intermittent operation, frequent starting and braking, overload and significant vibration and shock. They are especially suitable for short-time or intermittent operation, frequent starting and braking, overloading and significant vibration and shock lifting and metallurgical machinery and equipment. yzr series are wire-wound rotor motors with rated frequency of 50Hz and rated voltage of 380V. the insulation level of the motors is divided into two types: F and H. F is suitable for general places where the ambient air temperature doesn't exceed 40℃ and H is suitable for places where the ambient air temperature doesn't exceed 60℃ and the insulation level of the motors is divided into two types. Class F is suitable for general places where the ambient air temperature does not exceed 40℃, while class H is suitable for metallurgical places where the ambient air temperature does not exceed 60℃. Motors of both insulation classes have the same parameters. The motors have good sealing, and the protection class of the motors for general places is IP44, and the protection class of the motors for metallurgical places is IP54.