Ground-fault circuit interrupter
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United States of America Patent
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-
Apr 20, 2010
Issued Date -
N/A
app pub date -
Jun 5, 2007
filing date -
Nov 14, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved ground-fault circuit interrupter (GFCI) device has a moveable lock plate controlled by a relay to block a hole under the reset guiding member to prevent reset of the device. The moveable lock plate blocks the hole and prevents reset when the relay is not energized, and expose the hole to allow reset when the relay is energized. The relay is powered by a power supply circuit which is connected in series with a solenoid across the input side of the GFCI. The solenoid is controlled by a control circuit, and causes a disconnecting assembly to disconnect the input and output sides of the GFCI when a leakage current is detected. If the solenoid malfunctions, or if the GFCI device is reversely wired, the relay is not energized and the device cannot be reset.
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