One-piece fusible conductor for low-voltage fuses

Details One-piece fusible conductor for low-voltage fuses One-piece fusible conductor for low-voltage fuses

1977-03-01

1979-03-27

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337160, 337163, H01H 8510

Patent

active

041468635

ABSTRACT:
A one piece fusible conductor wherein a current carrying isthmus member in the form of a bridge connects first and second members. The first member has a hole in the vicinity of the isthmus and the hole is filled with a rivet shaped solder deposit and defines current carrying regions of the first member leading to the isthmus. In accordance with the invention, the horizontal profile E of the cross section of each of the latter regions is within a range of 0.7 to 1.00mm and the horizontal profile D of the cross section of the isthmus is within a range from 1.0 to 2.00mm. Furthermore, the profiles E and D satisfy approximately the following relationship: 0.75 .gtoreq. E/D .gtoreq. 0.5.

REFERENCES:
patent: 2734111 (1956-02-01), Kozacka
patent: 2876312 (1959-03-01), Frederick
patent: 3835431 (1974-09-01), Rosen et al.

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