Fused GFI unit

Details Fused GFI unit Fused GFI unit

1975-01-27

1976-05-18

Broome, Harold

Electricity: electrothermally or thermally actuated switches

With separate distinct diverse art-type switching device

Fusible element device with other

317 18D, 335 18, H01H 8320, H01H 7140

Patent

active

039582043

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.

REFERENCES:
patent: 3440579 (1969-04-01), Smith
patent: 3493815 (1970-02-01), Hurtle
patent: 3579038 (1971-05-01), Franklin et al.
patent: 3636482 (1972-01-01), Edmunds
patent: 3796980 (1974-03-01), Ellsworth

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