Electrical switching device
US9330866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Dec 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/342
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrical switching device having a housing, at least two switching chambers within the housing with contacts to interrupt at least one current path, an arc extinguishing device for each switching chamber, and at least one guide channel within the housing, which directs the arc gas exiting the arc extinguishing device towards at least one of the exhaust openings to allow the arc gases to exit the housing, whereby each switching chamber has a guide channel, and whereby the guide channels of the different switching chambers are separated from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.