Fused GFI unit
US3958204A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1975 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jan 27, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fused GFI unit for manually controlling the application of electrical power to a utilization device while automatically protecting the device and personnel associated therewith from electrical hazards, includes a switch plate unit have an insulated handle for controlling mechanical current interrupting means. Fuse receptacle means is provided in series connection with the switch pole to protect the GFI unit and the power lines against overcurrent hazards. A ground fault detector operates an actuating member in mechanical cooperation with the latched portion of the switch mechanism to enable current interruption by the switch pole in the event an unbalanced current flow is produced in one of a pair of power lines by a personnel hazard. A compact sectionalized structure encasing the switch, the fuse receptacle means and the GFI detector results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.