Miniature current limiting circuit breaker
US4276526A · kind A · utility
16Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1980 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Jan 23, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature current limiting circuit breaker incorporates double break circuit interrupting contacts capable of being abruptly separated by a high fault current responsive solenoid acting to first trip the breaker mechanism and then forcibly effect contact separation. The arc chamber is constructed to achieve enhanced blowout of the arc into the arc chute and to develop gas pressures acting to accelerate contact separation. The circuit breaker is trip-free and includes both thermal tripping and internal common tripping capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.