Circuit breaker with adjustable trip unit

Details Circuit breaker with adjustable trip unit Circuit breaker with adjustable trip unit

1985-03-21

1986-07-29

Hix, L. T.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335176, 74470, 74522, H01H 7510

Patent

active

046033122

ABSTRACT:
A circuit breaker characterized by a housing and a circuit breaker structure within the housing and comprising an electromagnetic trip including a magnetic yoke and armature and means associated with the armature for adjusting the electromagnetic force required to pull the armature to the yoke, whereby changing of the force requirement results in significant reduction in operating time of the trip unit.

REFERENCES:
patent: 3260822 (1966-07-01), Stephenson, Jr. et al.
patent: 3526861 (1970-09-01), Walker
patent: 3775713 (1973-11-01), Walker et al.

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