H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 5/00 (2006.01) H01H 69/02 (2006.01) H01H 85/10 (2006.01) H01H 85/175 (2006.01) H01H 85/20 (2006.01) H01H 85/38 (2006.01) H01H 85/00 (2006.01) H01H 85/17 (2006.01)
Patent
CA 2146037
A current-limiting device is provided having a low profile configuration (generally flat polyhedron) that defines a cavity of predetermined dimensions and an elongated circuitous path through the cavity. The device also includes provisions for supporting a current-limiting fusible element along the path. The cavity is filled with a pulverulent arc- quenching filler material. In one specific arrangement, the path of the fusible element is defined by one or more U-shaped sections substantially spanning the length or width of the cavity. The fusible element is arranged in a predetermined geometry to include a length of the fusible element that is longer than the overall straight-line path via a configuration of steps or bends along its length.
Osler Hoskin & Harcourt Llp
S&c Electric Company
LandOfFree
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