ARC PROTECT DEVICE IN MOVING CONTACTOR SPRING

摘要

PURPOSE: An arc preventing apparatus of a mobile belt spring is provided to completely protect the mobile belt spring from the arc using a shape of a crossbar and an insulation wall of a case. CONSTITUTION: A case(100) is used for composing the outside of a circuit breaker. A mobile belt(110) is installed on the case and secludes a connection of a load and a power source. A spring(119) is installed on the case supports the mobile belt. A crossbar(130) is movably installed on the case and pressures the spring. The crossbar is installed movably with the mobile belt and protects the spring from an arc generated inside of the case. A linear groove(102) is formed on the downward of the mobile belt. The crossbar slides on the linear groove. An insulation wall(105) is formed on the linear groove. The insulation wall secludes an outflow of the arc to the spring in a contact point of the mobile belt.