公开(公告)号：US20220148829A1

公开(公告)日：2022-05-12

申请号：US17602151

申请日：2020-03-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Yong-Jin CHOI

IPC: H01H33/664 ,  H01H33/662 ,  H01H33/666

Abstract: The present disclosure relates to a motion sensing device for a vacuum circuit breaker and a vacuum circuit breaker comprising same. In the present disclosure, the motion sensing device for a vacuum circuit breaker is provided with a push rod assembly coupled to a movable electrode of a vacuum interrupter to elevate or lower the movable electrode, wherein the motion sensing device comprises: a sensor module spaced apart from the push rod assembly and arranged to face a side of a rod housing; and a sensing unit installed on a side of the push rod assembly and arranged to face the sensor module that senses the movement of the sensing unit.