Molded case circuit breaker with an improved arc gas external ve

Details Molded case circuit breaker with an improved arc gas external ve Molded case circuit breaker with an improved arc gas external ve

1984-09-28

1986-12-23

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200144R, 137855, H02B 108

Patent

active

046313761

ABSTRACT:
A molded case circuit breaker includes an improved system for venting gaseous arc products from the interior of the molded case to the exterior thereof and for preventing the ingress of environmental contaminants. At least one slot is formed through the molded case and a one-way, resilient valve is disposed within the slot.

REFERENCES:
patent: 2505757 (1950-05-01), Dunbar et al.
patent: 3506799 (1970-04-01), Ellsworth et al.
patent: 3707612 (1972-12-01), Yorgin et al.
patent: 3780249 (1973-12-01), Harper
patent: 4261189 (1981-04-01), Brumfield, Jr., et al.

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