Power supply circuit breaker for conversion of bonding and separating power supply of electrical system in e.g. electric car, has rotation restriction section limiting rotation of lever when unlock operation section is pressed in direction

摘要

The breaker (1A) has a set of locking sections (LK1, LK2) locking a lever (30) in an operating position and a connector coupling-operating position. An unlock operation section (27) releases locking state of one of the locking portions. A rotation restriction section is designed to limit the rotation of the lever by an abutment of the unlock operation section in the operative position when the unlock operation section is pressed in a direction, which is same as a direction for unlocking a locking state of the locking portion.