Surge protection device
US7242566B2 · kind B2 · utility
19Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2005 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surge suppression circuit with a thermal cutoff includes a first surge suppressor in series with a first thermal cutoff device between a phase conductor and a neutral conductor. A second surge suppressor in series with a second thermal cutoff device is between the phase conductor and a ground conductor. A third surge suppressor is in series with a low temperature thermal cutoff device between the neutral conductor and the ground conductor. The thermal cutoff temperature of the low temperature thermal cutoff device is lower than the thermal cutoff temperature of the first thermal cutoff device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.