Ground line fault interrupter adapter unit

Details Ground line fault interrupter adapter unit Ground line fault interrupter adapter unit

1987-08-27

1989-03-28

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

335 18, 361 49, H02H 316

Patent

active

048169579

ABSTRACT:
An adapter unit comprising a moisture resistant housing within which is carried an improved, self testing ground line fault interrupter device. The improved device is electrically interconnected with a connector carried externally of the adapter housing so that the unit can be plugged directly into a standard duplex outlet of an existing circuit. The apparatus includes circuitry that automatically tests the operability of the device when it is plugged into a duplex outlet without the need for manual manipulation of test buttons or other overt action by the user.

REFERENCES:
patent: 4002951 (1977-01-01), Halbeck
patent: 4079344 (1978-03-01), Lauben et al.
patent: 4216516 (1980-08-01), Howell
patent: 4348708 (1982-09-01), Howell
patent: 4563997 (1986-02-01), Bienwald et al.

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