Installation switching apparatus having an exhaust air duct and a set screw
US10319543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2018 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/342
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An installation switching apparatus includes: a housing; at least one contact point; an exhaust air duct which in an upstream portion thereof receives arc gases of a switching arc that has been created at the at least one contact point, and by way of an exhaust air opening in a housing wall of the housing in a downstream portion of the exhaust air duct the exhaust air duct releases the arc gases into an environment of the housing; at least one thermal release; and a set screw for setting the at least one thermal release. The set screw at an activation end thereof has a formed element for contacting in a form-fitting manner a tool for rotating activation of the set screw. An operative end of the set screw is coupled to the at least one thermal release.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.