Molded case circuit breaker arc baffle insert

Details Molded case circuit breaker arc baffle insert Molded case circuit breaker arc baffle insert

1991-10-07

1992-10-06

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With arc-suppression or extinguishing means

200144R, H01H 930

Patent

active

051535459

ABSTRACT:
A refractory fiber insert within the cover of a molded case circuit breaker interfaces between the interior of the circuit breaker cover and the top surface of the circuit breaker arc chute to prevent the arc by-products generated within the arc chamber from re-entering the arc chamber. A shaped slot formed within the fiber insert automatically compensates for manufacturing tolerances to precisely locate the insert between the cover interior and the top surface of the arc chute.

REFERENCES:
patent: 3043939 (1962-07-01), Gryctko et al.
patent: 4019005 (1977-04-01), Michetti
patent: 4281303 (1981-07-01), Heft
patent: 4581511 (1986-04-01), Leone
patent: 4631376 (1986-12-01), Leone
patent: 4963849 (1990-10-01), Kowalczyk et al.
patent: 4982174 (1991-01-01), Fasano

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