Three-phase permanent magnet mining circuit breaker

The invention discloses a three-phase permanent magnet mining circuit breaker, and the circuit breaker comprises three vacuum circuit breakers. A permanent magnet operation mechanism is disposed between each vacuum circuit breaker, and a movable pull rod of each permanent magnet operation mechanism is connected with an insulating pull rod in the corresponding vacuum circuit breaker. Each vacuum circuit breaker is controlled by one independent permanent magnet operation mechanism. When the circuit breaker is in use and one vacuum circuit breaker is switched off, there is no impact on other circuit breakers, and other circuit breakers can work normally. 本发明公开了种三相永磁矿用断路器，包括三个真空断路器，每个所述真空断路器的下方均设置有永磁操作机构，所述永磁操作机构的活动拉杆与真空断路器中的绝缘拉杆连接。每个真空断路器均通过采用个单独的永磁操作机构来进行控制，在使用时，其中个真空断路器发生分合闸时，对其他断路器不会造成影响，即其他真空断路器均正常工作。