Ground fault/arc fault circuit interrupter and method of testing the same with a test button and a reset button
US6720872B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Oct 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2083/201
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arc fault/ground fault circuit interrupter for a power circuit includes a line terminal; a load terminal; and separable contacts electrically connected between the line and load terminals. An operating mechanism opens the separable contacts and has a closed position for closing the separable contacts. A trip mechanism cooperates with the operating mechanism to trip open the separable contacts. A ground fault protection circuit is operatively associated with the power circuit. An arc fault protection circuit is also operatively associated with the power circuit. A circuit tests the ground fault protection circuit, tests the arc fault protection circuit, and restores the operating mechanism to the closed position responsive to sequential activation of test and reset buttons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.