Multipole circuit breaker

Details Multipole circuit breaker Multipole circuit breaker

1990-05-21

1992-05-26

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335172, H01H 7500

Patent

active

051172089

ABSTRACT:
A new single pole circuit breaker, intended for use in a multipole circuit breaker, is disclosed. Among other distinctions, upon being tripped, a relatively large torque is imparted to the trip lever of the single pole circuit breaker. This is achieved by interacting the contact bar stop pin on the contact bar of the single pole circuit breaker with a camming surface on the trip lever. In addition, when pivotal motion is imparted to the trip lever by an external agent, the trip lever directly engages the toggle mechanism of the circuit breaker, to collapse the toggle mechanism and produce tripping. Moreover, the trip lever has a configuration which permits convenient pivotal mounting to a frame.

REFERENCES:
patent: 3290627 (1965-04-01), Davis et al.
patent: 3646487 (1972-02-01), Bracketter
patent: 4347488 (1982-08-01), Mune et al.

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