Protective device with miswire protection
US7239491B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Sep 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/338
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to an electrical wiring protection device that includes a housing assembly including a plurality of line terminals and a plurality of load terminals. A miswire detection circuit is coupled to at least one of the plurality of line terminals, the miswire detection circuit being configured to generate a miswire detection signal when AC power is coupled to the plurality of load terminals. The miswire detection circuit includes a circuit element configured to open circuit after a predetermined period of time elapses when AC power is coupled to the hot line terminal and neutral line terminal. A fault detection circuit is coupled to at least one of the plurality of line terminals and configured to generate a fault detection signal in response to detecting at least one fault condition and/or the miswire detection signal. An interrupting contact assembly is coupled between the plurality of line terminals and the plurality of load terminals. The interrupting contact assembly includes interrupting contacts that provide electrical continuity between the plurality of line terminals and the plurality of load terminals in a reset condition. The interrupting conta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.