Back to results
US 2010/0134306 A1Published application
Ground Fault Circuit Interrupter With End-Of-Life Indicator
AssigneeWenzhou Sansheng Electric Co., Ltd.
InventorsCheng Zhi ZENG, Gui Chen
Life of this patent
Estimating the term…
Abstract
A circuit interrupter with end-of-life indicator is provided. A fuse is provided between the power supply and the control chip, and between the power supply and the main circuit. If the current passing through the control chip or the main circuit is drawing too much current, it indicates a short-circuit fault has occurred. In this case, the fuse is melted, and cutting off power supply to the control chip and the main circuit. An end-of-life indicator light turns off to signal to the user that an fault has occurred to the GFCI device.
Claims2
A circuit interrupter comprising:
- a control circuit to activate an electromagnetic unit upon detecting a predetermined condition;
- a fuse coupled between the control circuit and a power supply, and coupled between an end life indicating circuit and the power supply.
Dependencies are inferred from the claim text.