Circuit breaker with improved magnetic trip assembly

Details Circuit breaker with improved magnetic trip assembly Circuit breaker with improved magnetic trip assembly

1994-04-18

1995-02-28

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 38, H01H 7510

Patent

active

053941268

ABSTRACT:
A circuit breaker with improved magnetic trip assembly includes electrical contacts operable between a closed position in which a circuit is completed and an open position in which the circuit is interrupted, a latchable operating mechanism operable to open the electrical contacts when unlatched and a trip bar rotatable from a biased position to a trip position to unlatch the operating mechanism. The circuit breaker further includes a magnetic trip assembly comprising a stationary magnetic structure, a movable armature which is attracted to the stationary magnetic structure by an abnormal current through the conductor to rotate the trip bar to the trip position and a plate means mounted to the movable armature and disposed between the armature and the stationary magnetic structure. The plate means adjusts the amount of abnormal current required to attract the movable armature to the stationary magnetic structure and in turn rotate the trip bar.

REFERENCES:
patent: 3815059 (1974-06-01), Spoelman
patent: 3950715 (1976-04-01), Bagalini et al
patent: 4630019 (1986-12-01), Maier et al.
patent: 4691182 (1987-09-01), Mrenna et al.
patent: 4719438 (1988-01-01), Mrenna et al.
patent: 4958136 (1990-09-01), Maier et al.

Affiliated with

Also associated with

Rating

Circuit breaker with improved magnetic trip assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit breaker with improved magnetic trip assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker with improved magnetic trip assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-850934