Flat fuse for high rated currents
US5373278A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Blade type plug-in fuse for high nominal currents. It is of the type comprising a case (1) in which is partially housed a conductive unit (5, 6, 9, 10) provided with two flat connection terminal blades (5, 6) whose free ends (7) are situated outside the case, said connection terminal blades being connected inside the case by a flat fuse link part (8) on at least one side and substantially in the center of which is deposited a drop of metal (13) of predetermined area of contact, and it is characterized in that the fuse link part comprises a central gauging zone (9) of width (l.sub.1) smaller than the width (l.sub.2) of the adjacent lateral zones (21) connecting with the connection terminal blades, the area of contact (31) of said drop (13) being at least greater than half the area of the gauging zone (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.