Industrial-rated circuit breaker having universal application

Details Industrial-rated circuit breaker having universal application Industrial-rated circuit breaker having universal application

1994-06-10

1995-08-08

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With housing or support means

335201, 218 1, H01H 902

Patent

active

054402840

ABSTRACT:
A molded case circuit breaker enclosure and operating components are provided with additional features to enable compliance with a variety of international electrical requirements for sales in the world market. The circuit breaker operating handle is prevented from returning to the OFF position upon contact welding as one example. Another modification includes a reinforcement and rejection pin used with the enclosure case. A further modification includes a shield used with the movable contact arm to prevent the arc gas contaminants from contacting the circuit breaker operating springs.

REFERENCES:
patent: 534191 (1894-08-01), Crookston et al.
patent: 4345223 (1982-08-01), Chien-Chun
patent: 4760364 (1988-07-01), Ostby

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