Protective apparatus for an electrical installation having tempe

Details Protective apparatus for an electrical installation having tempe Protective apparatus for an electrical installation having tempe

1996-07-05

1999-08-03

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

With separate distinct diverse art-type switching device

Bimetallic device with other

337 13, 337 85, 361103, H01H 3700, H02H 504

Patent

active

059330686

ABSTRACT:
A protective apparatus for an electrical installation, includes a device for connecting the protective apparatus to an electrical installation in parallel intermediate phase and zero and under no current and temperature-sensitive disconnection element for disconnecting the electrical circuit when a predetermined temperature for the electrical circuit is attained. The temperature-sensitive disconnection element, preferably, operates the actuating a leakage relay when the predetermined temperature is reached.

REFERENCES:
patent: 4105986 (1978-08-01), Gogniat et al.
patent: 4334541 (1982-06-01), Leist et al.
patent: 4500862 (1985-02-01), Shedd
patent: 4563667 (1986-01-01), Hofsass
patent: 4901060 (1990-02-01), Liu
patent: 5233162 (1993-08-01), Von Gaisberg et al.
patent: 5248954 (1993-09-01), Chiang

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