Method of fabricating a molded case circuit breaker

Details Method of fabricating a molded case circuit breaker Method of fabricating a molded case circuit breaker

1987-04-17

1988-03-22

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29602R, 335132, H01H 1100

Patent

active

047319216

ABSTRACT:
An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mechanism assembly to be employed across a wide range of breaker ratings. A snap-on common trip bar attachment further allows multiple-pole facility off the common interrupter mechanism assembly. The mechanism assembly is designed to maintain the operating handle in the "on" position upon the occurrence of a welded contact and prevents the mechanism from being reset.

REFERENCES:
patent: 3646488 (1972-02-01), Iida et al.
patent: 4166988 (1979-09-01), Ciarcia et al.
patent: 4503408 (1985-04-01), Mrenna et al.
patent: 4603313 (1986-07-01), Shimp et al.
patent: 4622530 (1986-11-01), Ciarcia et al.

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