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HBC (High Breaking Capacity, European term) and HRC (High Rupturing Capacity, North American term) fuses have the ability to break high fault currents. This is done by having silica sand in the fuse that the fuse elements travel through. On high fault current that sand will melt and turn to glass. This breaks the current flow immediately

A cartridge fuse maximum current breaking capacity is very much lower than HRC, HBC because there is nothing in the fuse body except the fuse elements.

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Q: What are the advantages of a HBC fuse over a cartridge fuse?
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