ARC EXHAUST APPARATUS OF CIRCUIT BREAKER

摘要

PURPOSE: An arc exhaust apparatus of a circuit breaker is provided which can prevent the shortage phenomenon frequently occurred when an arc gas is exhausted to the external. CONSTITUTION: An arc exhaust apparatus of a circuit breaker prevents the shortage due to the arc. The circuit breaker acts as a role of protecting a cable or an electronic apparatus connected to a terminal of a load when an abnormal current is caused by an overload on an electric line or a short accident. The arc exhaust apparatus guides the moving direction of the arc as an insulation open/close plate is opened when the arc is generated, by installing a plurality of insulation open/close plates(12) to be able to be rotated with a pin(13) on an arc exhaust hole and by installing a spring(14) between the insulation open/close plate and the pin.