Draw-out molded case circuit breaker
US5334808A · kind A · utility
96Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Apr 6, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker assembly is equipped with a pre-tripping device comprising a fixed cam securedly united to a connecting base, which cooperates with a rocker and a transmission lever when the circuit breaker is drawn-in and drawn-out from the connecting base. The profile of the fixed cam is chosen to actuate the transmission lever and impose tripping of the circuit breaker, during draw-in or draw-out travel, whereas the transmission lever is in the inactive position after the circuit breaker is drawn-in or drawn-out, in which the latter can be opened or closed normally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.