Self testing ground fault circuit interrupter (gfci) with...

Details Self testing ground fault circuit interrupter (gfci) with... Self testing ground fault circuit interrupter (gfci) with...

H - Electricity

01

H

H01H 83/04 (2006.01) H01H 83/02 (2006.01)

Patent

CA 2589949

A self test (ST) ground fault circuit interrupter (GFCI) provides a half wave rectifier for powering circuitry for determining and annunciating end of life (EOL) of the GFCI regardless of a shorted diode bridge or opening of a printed circuit board (PCB) trace. A fuse resister is provided to open before an open PCB trace can occur. A microprocessor-controlled heat-conducting circuit is provided adjacent to a thermal fuse to controllably open the thermal fuse and remove power from face receptacle contacts and load terminals when EOL occurs.

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