Abstract: Disclosed is a trip device of a molded case circuit breaker. The trip device includes a shooter configured to include a body and a rotating shaft which passes through the body, a double torsion spring coupled to both sides of the rotating shaft and configured to provide an elastic restoring force to enable the shooter to rotate, and a crossbar configured to include a hanger that contacts the hanging plate and limits a movement of the shooter. A hanging plate is provided at a lower portion of the body, and a hitting plate is provided at an upper portion of the body.

Abstract: Disclosed is a trip device of a molded case circuit breaker. The trip device includes a shooter configured to include a body and a rotating shaft which passes through the body, a double torsion spring coupled to both sides of the rotating shaft and configured to provide an elastic restoring force to enable the shooter to rotate, and a crossbar configured to include a hanger that contacts the hanging plate and limits a movement of the shooter. A hanging plate is provided at a lower portion of the body, and a hitting plate is provided at an upper portion of the body.

Abstract: Disclosed is a slide type movable contactor for a circuit breaker with a slidable structure by which a contact pressure with the movable contactor is increased in a conduction state so as to minimize resistance and heat generation, the assembly including a movable contactor rotatable based upon a rotational shaft, connection plates configured to allow rotation of the movable contactor and simultaneously provide a conduction path by a contact with the movable contactor, and bimetal plates installed at side surfaces of the connection plates, respectively, and bends towards the connection plates in response to a temperature increase in a conduction state to press the connection plates so as to increase a contact pressure of the connection plates onto the movable contactor.