Class K5 Fuses

Littelfuse makes a variety of industrial power fuses to protect electrical equipment in a broad range of applications. Class K5 "one-time," fast-acting fuses provide low-cost protection for general purpose feeder and branch circuits when available short-circuit currents are less than 50 kA. This product group includes the NLN and NLS series, which, respectively, have maximum voltage ratings of either 250 V ac or 600 V ac.