Sneak current fuse for telephone circuits

Details Sneak current fuse for telephone circuits Sneak current fuse for telephone circuits

1980-06-09

1982-03-02

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361124, H02H 322

Patent

active

043181538

ABSTRACT:
An improved telephone protector module for individual subscriber circuits incorporating, in addition to heat sensitive means for grounding outside plant tip and ring currents, switch means for simultaneously opening the tip and ring circuits leading to central office or PBX equipment when excessive current is detected. The switch means is normally in closed position when the heat sensitive means is in unfired condition.

REFERENCES:
patent: 4004192 (1977-01-01), Carney
patent: 4051546 (1977-09-01), Scheithauer

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