Patent ID: 6084489
Filing Date: 2000-07-04
Classification: H01H

Abstract:
A circuit breaker comprising:a case and cover;a cassette mounted within said case and cover;a rotor assembly within said cassette interconnecting with an operating mechanism and a movable contact arm having a first movable contact at one end and a second movable contact at an opposite end thereof, said rotor assembly being movable between a closed position, wherein said first and second movable contacts are engaged with a respective first and second stationary contacts, and an open position where said first and second movable contacts are separated from said first and second stationary contacts respectively, said contact arm having a first dwell surface and a locking surface thereon;a latch member mounted to said cassette adjacent to said rotor assembly, said latch member having an edge;a spring mounted within said cassette adjacent to said latch member, said spring biasing said latch member such that said latch edge engages the contact arm first dwell surface.