LOW MOVEMENT TRIP AND INTEGRATED SIGNAL FLAG FOR MINIATURE CIRCUIT BREAKERS

摘要

A circuit breaker includes a trip mechanism having reduced trip movement and an integrated signal flag. The trip mechanism includes a spring-biased trip lever and a latching member for keeping the trip lever in an on or latched position. Upon occurrence of an abnormal current condition, the latching member is moved away from the trip lever to trip the trip mechanism. The latching member also has a catch mechanism designed to catch the trip lever after it is released, thereby halting further progress of both the trip lever and the latching member. As a result, less space is needed within the circuit breaker for trip movement compared to existing solutions. Moreover, the location of the catch mechanism on the latching member is selected such that the halting of the latching member places the integrated signal flag in an optimal viewing position within a viewing window.

主权项

1. A latching member for a trip mechanism of a circuit breaker, comprising:
a main body; a central opening formed in the main body, the central opening configured to engage a tip portion of a trip lever of the trip mechanism; and a catch mechanism formed in the main body a predefined distance from the central opening, the catch mechanism configured to catch the tip portion of the trip lever of the trip mechanism.