Time delay fuse for motor starter protection

Details Time delay fuse for motor starter protection Time delay fuse for motor starter protection

1991-06-07

1992-09-22

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337164, 337166, H01H 8504

Patent

active

051500930

ABSTRACT:
A time-delay fuse having a fuse element with a series of weak spots surrounded by a loose sand filler. The fuse element is connected to a trigger mechanism by solder or other meltable alloy. The trigger section provides overload protection and the fuse element provides short circuit protection resulting in a time-delay fuse which can be used in places where there are size restrictions.

REFERENCES:
patent: 4994779 (1991-02-01), Douglass

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