Protective switching apparatus with remotely controlled opening and closing of the contacts
US4855698A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Feb 10, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H89/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protective switching apparatus with remote controlled opening and closing is provided including a tripping mechanism connected to an assembly comprising at least two fixed contacts and two mobile contacts and to a magnetic and/or thermal trip; a resetting member and an electromagnet having a movable element and to a member for driving a least one pseudo-fixed or mobile contact. The mobile contacts are carried by a bridge having a plane of symmetry X--X and the tripping mechanism extends in the vicinity of the plane of symmetry X--X. The electromagnet and the trip are housed in the case on each side of the tripping mechanism in a direction perpendicular to the plane of symmetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.