The M3 series of molded case circuit breakers has built-in compound release and electromagnetic release, combining two mechanisms of thermal release and magnetic release. The thermal release device automatically disconnects the circuit when overloaded due to the thermal effect of induced current; The magnetic release device quickly cuts off the circuit through electromagnetic force in the event of a short circuit, ensuring the safety of the equipment. This composite protection strategy provides stable and reliable protection in complex and ever-changing electrical environments

The M3 series of molded case circuit breakers is suitable for the fields of power distribution systems and motor protection. In terms of distribution protection, it can effectively monitor and cut off fault currents such as overload and short circuit, ensuring the stable operation of the power grid; In terms of motor protection, by accurately adjusting the trip curve, precise identification and protection of the starting current and fault current of the motor can be achieved, effectively extending the service life of the motor

The M3 series of molded case circuit breakers adopts a body operation design, and users can easily achieve the closing and opening operations of the circuit breaker without additional tools, greatly improving the convenience and efficiency of operation. At the same time, its pre board wiring design simplifies the installation process, making it easier for subsequent maintenance and repair work