Interchangeable mechanism for molded case circuit breaker

Details Interchangeable mechanism for molded case circuit breaker Interchangeable mechanism for molded case circuit breaker

H - Electricity

01

H

26/120, 306/327

H01H 71/10 (2006.01) H01H 71/74 (2006.01) H01H 71/50 (2006.01)

Patent

CA 1285973

INTERCHANGEABLE MECHANISM FOR MOLDED CASE CIRCUIT BREAKER ABSTRACT OF THE DISCLOSURE An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mech- anism 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.

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