Circuit breaker

摘要

A circuit breaker includes an elongated movable contact having a contact at one end thereof for flowing a current therethrough and the other end rotatably supported with a holder, and a protection cover made of an insulating material for covering and protecting a movable contact from short circuit and discharge. The protection cover is made of only the insulating material, covers the movable contact, and has elasticity to tightly hold the movable contact.