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AssigneeLeviton Manufacturing Co., Inc.
InventorsBenjamin Neiger, Saul Rosenbaum, Bernard Gershen
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A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.
A ground fault circuit interrupter comprising:
A ground fault circuit interrupter comprising:
A ground fault circuit interrupter comprising:
A ground fault circuit interrupter electrically connected between a source of electrical power and a load and which interrupts the flow of electrical current from said source of electrical power to said load when a ground fault condition exists, wherein the improvement comprises:
A ground fault circuit interrupter electrically connected between a source of electrical power and a load including ground fault current interrupter means for interrupting the flow of electrical current from said source of electrical power to said load when a ground fault condition exists and receptacle means for coupling said source of electrical power to an external electrical device, wherein the improvement comprises:
Dependencies are inferred from the claim text.