The difference between self cooling variable frequency motor and forced cooling variable frequency motor

The forced cooling variable frequency motor has an additional forced cooling fan compared to the self cooling variable frequency motor

The detailed cooling method is as follows:

IC411 Self cooling Variable Frequency Motor: Equipped with a fan for cooling, the fan does not need to be powered separately. The insulation system of the self cooling variable frequency motor will be strengthened, making it more heat-resistant than ordinary motors.

IC416 forced cooling variable frequency motor: axial fan cooling, the fan needs independent power supply. The strong cooling variable frequency motor has an additional strong cooling fan, which allows the motor to dissipate heat well even during low-frequency operation.

Explanation: The operating frequency of the motor is directly proportional to the speed, and the lower the frequency, the lower the speed. If the motor operates at low speed for a long time, it will lead to poor heat dissipation and an increase in temperature, which will exacerbate the aging of the motor insulation system and shorten the lifespan of the motor.