CIRCUIT BREAKER

摘要

The circuit breaker is provided with a fixed contactor having a fixed contact, a moving contactor having a moving contact capable of establishing contact with and separating from the fixed contact through an opening/closing operation, and a commutating part. The commutating part is disposed at a location where no interference with the moving contactor occurs during the opening/closing operation, and is electrically interposed between a portion of the fixed contactor other than the fixed contact and a portion of the moving contactor other than the moving contact, causing an arc current to pass, when the poles are open.