| 摘要 |
[Problem] The problem addressed by the present invention is to provide a vacuum circuit breaker capable of increased compactness by means of reliably grounding a mobile-side terminal in a vacuum circuit breaker main body and mounting a CR suppressor to the vacuum circuit breaker main body. [Solution] The vacuum circuit breaker, which is provided with a vacuum circuit breaker main body, which has a mobile terminal and is inserted into and pulled out from within a panel, and a CR suppressor, which is installed as a surge absorber in the vacuum circuit breaker main body, is equipped with: a grounding arm support shaft that is rotatably supported by the vacuum breaker main body; a grounding arm attached to both ends of the grounding arm support shaft; a grounding arm connection body connected to the grounding arm; and a drive means that drives the grounding arm with the grounding arm support shaft as a fulcrum, and that contacts the grounding arm connection body connected to the grounding arm to the mobile terminal, grounding same. |
