Designed for easy replacementNo multiple links to complicate replacementBuss super-lag renewable fuses with longer time lag than other class H fuses of this type can better sustain overloads without needlessly openingSuper-lag fuses are used in circuits of industrial and commercial structures where maximum short circuit currents are of a low level (below 10 kA) and frequent outages dictate the economy of the "renewable" type fuseThese fuses are generally sized at the amperage rating of non-inductive circuits and 300% for motor circuits