Electrical switchgear has thermal breaker coupled to trip lever by connecting rod so that both thermal and electromagnetic breakers open latch point in case of overload current or short circuit current

摘要

The electrical switchgear has a contact carrier (34) for a movable contact piece (38) and is located between a thermal breaker (52) and an electromagnetic breaker. A latch lever with a rotatably mounted trip lever (32), which interacts with the electromagnetic breaker and the thermal breaker, forms the latch point. The thermal breaker is coupled to the trip lever by a connecting rod (50) so that both the thermal and the electromagnetic breakers open the latch point in the case of an overload current or short circuit current.