Introduction of motor insulation level
The insulation level of a motor refers to the heat resistance level of the insulation material used, which is divided into A level, E level, B level, F level, H level, C level, N level, and R level. Allowable temperature rise refers to the limit that the temperature of the motor rises compared to the ambient temperature. The classification of motor insulation grade is based on the allowable limit temperature of the insulation material used by the motor. There are several grades such as Y, A, E, B, F, H, and C.