Circuit interrupter including arc fault test and/or ground...

Details Circuit interrupter including arc fault test and/or ground... Circuit interrupter including arc fault test and/or ground...

H - Electricity

01

H

H01H 83/04 (2006.01) H01H 9/50 (2006.01)

Patent

CA 2512692

A circuit breaker includes a test circuit having one or two indicators, an arc fault signal generator, and first and second test switches. A first indicator is electrically connected in series with the first test switch. This series combination provides a first alternating current signal to the arc fault signal generator, which provides an arc fault signal to an arc fault trip circuit, in order to trip open separable contacts in response to closure of the first test switch. The series combination of the second test switch and the second indicator provides a second alternating current signal to a ground fault trip circuit, in order to trip in response to closure of the second test switch. The indicators provide a visual indication of failure of the arc fault or ground fault trip circuits to trip in response to closure of the first or second test switches, respectively.

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