| 摘要 |
Low voltage current limiting fuses wherein the conventional fusible element is replaced. The fuses of the invention are resettable manually or automatically such that the fuse need not be physically replaced following a fault current or overload current occurrence in the external circuit in which the fuse is incorporated. The fuses of the invention generally comprise resettable low voltage current limiting fuses that automatically reset themselves following removal of a fault condition comprising: a casing having an interior cavity and a first and a second electrically conductive terminals; a current limiting polymer element disposed within the interior cavity of the casing and in electrical contact with said first electrically conductive terminal; a bullet conductor having a moving contact slidably disposed within the interior cavity; a conductor electrically connecting the current limiting polymer element to the bullet conductor; a stationary contact within the interior cavity and in electrical contact with the second electrically conductive terminal; and, a means for biassing the moving contact to engage the stationary contact under normal steady-state current conditions.
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