Power breaker apparatus
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsShigenori Hotta, Sadaaki Baba
Life of this patent
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Abstract
A power breaker apparatus comprises a permanent fuse and resistors connected in parallel to the permanent fuse through a connecting conductor and is connected between a power source and a load to break a current supply to the load when a fault current is passed. At least external surfaces of the parallel resistors near the connecting parts of the connecting conductor are coated by an insulating coat.
Claims5
A power breaker apparatus comprising a permanent fuse and at least one resistor connected in parallel to said permanent fuse through a connecting conductor having a pair of terminals, and being connected between a power source and a load current supply to break said current supply to said load when a fault current is passed, wherein said at least one resistor comprises:
- a resistor element, said resistor element having two ends, one of said ends adjacent each of said terminals;
- an insulating coating material coating each of said ends;
- means for securing each of said ends to a respective terminal, said securing means being electrically insulated from said resistor element and said pair of terminals;
- and
- easily deformable conductive spacing means between each of said ends and said respective terminal;
- wherein said insulative coating material covers said conductive spacing means,
- whereby said conductive spacing means is deformed by the securement of each of said ends to said respective terminal so as to ensure electrical contact therebetween.
Dependencies are inferred from the claim text.