Circuit breaker positive off interlock

Details Circuit breaker positive off interlock Circuit breaker positive off interlock

H - Electricity

01

H

306/280

H01H 71/62 (2006.01) H01H 71/50 (2006.01)

Patent

CA 2037792

21 ABSTRACT OF THE DISCLOSURE A molded case circuit breaker includes an in- terlock which prevents the operating handle from being placed in the off position after the main contacts have been welded together. By preventing the operating handle from being placed in an off position during such a condition, the operating handle will indicate the cor- rect status of the main contacts and the operator will be made aware that the main contacts are welded to- gether.

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