Receptacle type ground-fault circuit interrupter

Details Receptacle type ground-fault circuit interrupter Receptacle type ground-fault circuit interrupter

2006-04-24

2008-08-19

Sherry, Michael J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C335S006000

Reexamination Certificate

active

07414818

ABSTRACT:
A receptacle type GFCI includes an input circuit, a leakage current detecting and amplifying circuit, a neutral ground fault detecting and amplifying circuit, a signal control circuit including an IC and a reset and trip actuating circuit, an output circuit, and a ground fault self detecting circuit connected between the input circuit and the reset and trip actuating circuit. The ground fault self detecting circuit is used to test, when the power is turned on for the first time under correct wiring or when the TEST button is pressed after the RESET button is pressed, whether the ground fault protection function of the GFCI is working properly. The ground fault self detecting circuit includes an end-of-life indicator.

REFERENCES:
patent: 6697238 (2004-02-01), Bonilla et al.
patent: 6952150 (2005-10-01), Radosavljevic et al.
patent: 7133266 (2006-11-01), Finlay
patent: 7164564 (2007-01-01), Finlay, Sr. et al.
patent: 7212386 (2007-05-01), Finlay, Sr. et al.
patent: 2007/0030607 (2007-02-01), Liscinsky, III

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