The working mode of the motor is continuous working or continuous working. It is used to select the dynamic constant of the continuous working system and the motor according to the stall torque and the corresponding load duration; the load continuation rate is expressed by FC, which is divided into 15%, 25%, 40%, 60%, among which FC= 25% is the benchmark rating for this series of motors. The motor for continuous operation is selected at a rated power of continuous rating (FC = 100%). This series of motors has two types of mounting structure: (1) type B3 (horizontal, base with foot); (2) type B5 (horizontal, the base does not have a foot, the end cover has a flange).
