A TRIP MECHANISM FOR MOLDED CASED CIRCUIT BREAKER

摘要

PURPOSE: A trip mechanism of a molded-case circuit breaker is provided to efficiently block an excess current by quickly operating the on and off state of a movable contact and a fixed contact. CONSTITUTION: A frame is open front and back. A latch (55) is elastically supported by the frame. A link (54) moves a crossbar to the lower side. A trip bar rotates according to the deformation of bimetal. A trip body (56) is formed between the trip bar and the latch.