Overvoltage-protection device
US6765777B2 · kind B2 · utility
8Cited by
12References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Overvoltage-protection device, applicable in particular to the low-voltage mains, comprising, between the two lines (1, 2) of the mains, a gas-discharge arrestor (3), a varistor (4) and a thermal-fuse element (5) task with ensuring the thermal disconnection of the device . It includes, in parallel with the varistor (4), a resistor (7) causing, after the short-circuiting of the gas-discharge arrestor (3), the heating of the thermal-fuse element (5) so as to trigger the thermal disconnection of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.