To avoid damages, every electric motor must be electrically protected.

Indeed, the current may increase due to a voltage drop in voltage in the distribution system or a mechanical overload at the end of a rotating shaft.

If the current exceeds the motor threshold according to its power, it will permanently damage the motor.

Several systems can protect your  motor.

• Motor circuit breaker

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• Thermal-magnetic circuit breaker+contactor+thermal relay

• Variable frequency drive