Fuse-element for fuses used in electric networks

Details Fuse-element for fuses used in electric networks Fuse-element for fuses used in electric networks

1976-02-05

1977-10-11

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337164, H01H 8502, H01H 8546

Patent

active

040538621

ABSTRACT:
A fuse-element for use in an electric network, includes a metal strip including at least one portion having a reduced cross-section, a shunt element of conductive material shunting the portion, bonding means conductively bonding the shunt element to the metal strip and being capable of being released at a temperature higher than a predetermined temperature, the shunt element defining a chamber facing towards the metal strip and being sealed by the bonding means between the metal strip and the shunt element, and a material disposed in the chamber having a boiling temperature below the predetermined temperature and capable of producing an internal gas pressure within the chamber sufficient to break the bond when the material is heated to a temperature higher than the boiling temperature.

REFERENCES:
patent: 2638788 (1954-07-01), Hoorn
patent: 2667551 (1954-01-01), Berthel
patent: 3122619 (1964-02-01), Fister

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