Patent ID: 6181226
Filing Date: 2001-01-30
Classification: H01H

Abstract:
A molded case circuit breaker comprising:a molded case including a main cover;a first terminal and a second terminal inserted in the case;a stationary contact electrically coupled to the first terminal;a moveable contact electrically coupled to the second terminal;an operating mechanism having a pivoting member moveable between an ON position, an OFF position and a TRIPPED position, wherein the pivoting member is coupled to the moveable contact;an intermediate latching mechanism mounted in the housing and coupled to the operating mechanism; anda trip unit coupled to the moveable contact and the second terminal with the trip unit in selective operative contact with the intermediate latching mechanism, wherein the trip unit comprises;a magnetic short circuit release having an outer yoke with a magnetic shield; and, a thermal overload release having an interchangeable bimetal member.