Cutting apparatus, breaker, contactor, and electrical circuit breaker

摘要

A blade (11), which includes a cutting portion (21) and an insulating portion (22), is used as a blade (11) of a cutting apparatus (10). The cutting portion (21) is made of a metal, and has a blade portion. The insulating portion (22) is formed by an insulating member, and forms a part that adjoins the blade portion in a direction opposite to an advance direction of the blade (11). The cutting apparatus (10) is configured so that, when cutting a current-carrying member (15), the blade (11) advances until the insulating portion (22) contacts cut faces of the current-carrying member (15) after the cutting portion (21) cuts the current-carrying member (15).