Littelfuse NLS Series Littelfuse NLS series fuses provide low cost protection for general-purpose feeder and branch circuits when available short circuit currents are less than 50,000 amperes. Other Names: NLS045, NLS 45 Amp, NLS-45, NLS45, NLS 45A, NLS-045, NLS45A, NLS045.T Product specifications Ampere 45 A Voltage rating 600 VAC, 400 VDC Interrupt rating 20 kA at 400 VDC Speed Fast Blow Class Class K5 Fuse Shape Cartridge Fuses Approvals CE, CSA, UL Substitute parts Bussmann NOS, Mersen OTS Datasheet Littelfuse NLS Datasheet Dimensions 1.063" Dia x 5.5" L (27x139.7mm) Item weight 3.68 oz Other names NLS045, NLS 45 Amp, NLS-45, NLS45, NLS 45A, NLS-045, NLS45A, NLS045.T WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.