Manually set ground fault circuit interrupter

Details Manually set ground fault circuit interrupter Manually set ground fault circuit interrupter

H - Electricity

02

H

H02H 3/16 (2006.01) H01H 83/02 (2006.01) H01R 13/713 (2006.01) H02H 3/33 (2006.01) H02H 11/00 (2006.01)

Patent

CA 2124506

An improved ground fault circuit interrupter (GFCI) device requires manual setting following initial connection to an AC power source or termination of a power source interruption. The improved GFCI device utilizes a controlled switching device which is responsive to a load power signal for allowing the relay contact sets of the GFCI device to be closed only when power is being made available at the output or load terminals. The controlled switching device preferably comprises an opto-isolator or other type of switching device which provides isolation between the GFCI input and output terminals when the relay contact sets are open. The improved GFCI device may be incorporated into portable units, such as plug-in or line cord units, for use with unprotected AC receptacles.

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