Resettable circuit closing device

Details Resettable circuit closing device Resettable circuit closing device

1983-06-13

1986-01-28

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335166, 335186, H01H 7300, H01H 8300, H01H 300

Patent

active

045674566

ABSTRACT:
A resettable contact closing device opens a load circuit connected to a power line protected by a ground fault interrupter circuit, if the neutral conductor is broken. The contacts are closed by a mechanical reset actuator only if a solenoid is energized by a potential proportional to the line-to-neutral voltage to hold the actuator in a contact closing position. If the neutral conductor is broken, the solenoid will not be energized and the contacts, and hence the power line to the load circuit, will be opened.

REFERENCES:
patent: 4048599 (1977-09-01), Groth
patent: 4086643 (1978-04-01), Jacobs
patent: 4209762 (1980-06-01), Samborski et al.
patent: 4376895 (1983-03-01), Meister

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