Patent ID: 11972919
Assignee: ZHEJIANG CHINT ELECTRICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A plug-in circuit breaker comprising a housing provided with a limiting hole, a button mechanism having a closing position and an opening position corresponding to a closing state and an opening state, and an operating mechanism actuated by said button mechanism to perform a closing/opening operation,
wherein said plug-in circuit breaker includes a locking member arranged inside said housing, said locking member is provided with a locking protruding stand opposite to said limiting hole, when said button mechanism is in the closing position, said locking protruding stand of said locking member extending out of said limiting hole and limited by said button mechanism cannot retract into said housing;
when said button mechanism is in the opening position, said locking protruding stand of said locking member extends out of said limiting hole, applying an external force on said locking member for retraction, thus said locking protruding stand of said locking member can retract into said housing, and said locking member limits said button mechanism to perform the closing operation, so that the plug-in circuit breaker cannot be closed.