Time delay fuse with mechanical overload device

Details Time delay fuse with mechanical overload device Time delay fuse with mechanical overload device

1993-07-19

1994-08-30

Donovan, Lincoln

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337165, H01H 8504

Patent

active

053431855

ABSTRACT:
A fuse including a tubular casing, first and second blade-shaped terminals extending from respective sides of the casing, a short circuit fusible element attached to the first terminal, a heater attached to the second terminal, and a time delay overcurrent trigger mechanism electrically connecting the fusible element and the heater to each other in series in an electrical path between the blade-shaped terminals, the mechanism being connected to receive heat from the heater and to mechanically interrupt the electrical path when the heater heats up under low overcurrent conditions.

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