Compact molded case circuit breaker having external contact cond

Details Compact molded case circuit breaker having external contact cond Compact molded case circuit breaker having external contact cond

1990-11-13

1991-12-24

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

200308, H01H 7312

Patent

active

050756591

ABSTRACT:
A compact molded case circuit breaker with increased ampere rating employs a latch assembly for maintaining the circuit breaker operating mechanism in a closed condition against a pair of powerful operating springs. To increase the mechanical advantage required to move the operating handle against the springs, a retractable handle extender is attached to the handle. For higher-rated circuit applications, a lug cover extension is added to the line end of the breaker to assist in extinguishing the intense arc that occurs during circuit interruption and to protect the line lugs from inter-phasal circuit faults. A visual access slot is arranged next to the circuit breaker handle to ascertain and verify the condition of the circuit breaker contacts.

REFERENCES:
patent: 4644122 (1987-02-01), Farley et al.
patent: 4975667 (1990-12-01), Morgan et al.

Affiliated with

Also associated with

Rating

Compact molded case circuit breaker having external contact cond does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact molded case circuit breaker having external contact cond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact molded case circuit breaker having external contact cond will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-45999