Patent ID: 8068318

Claim:
An apparatus for ground fault current interrupter with overall end-of-life indication and shutdown protection, applied to an input power supply and a load, including: a first silicon-controlled rectifier; a reverse unit, which is electrically connected to a gate of the first silicon-controlled rectifier; a test switch unit, which is electrically connected to the reverse unit, the input power supply and the load; and a ground fault current interrupter, which is electrically connected to the reverse unit, the input power supply and the load, wherein the ground fault current interrupter includes: a second silicon-controlled rectifier, which is electrically connected to the reverse unit; a switch unit, which is electrically connected to the input power supply and the load; a switch control unit, which is electrically connected to the switch unit, the first silicon-controlled rectifier and the second silicon-controlled rectifier; and a rectifier filter unit, which is electrically connected to the input power supply, the switch unit, the switch control unit, the first silicon-controlled rectifier and the second silicon-controlled rectifier, when a test current leakage signal is generated, a drive power is provided to the reverse unit, and when the input power supply generates a current leakage phenomenon and if the ground fault current interrupter fails, then the second silicon-controlled rectifier will not be triggered, making the reverse unit output a trigger signal to trigger the first silicon-controlled rectifier, which makes the rectifier filter unit output a DC power flowing through the first silicon-controlled rectifier to interrupt a power supply of the switch control unit, such that the input power can not be delivered to the load.