Bussmann NOS Series Bussmann NOS basic protection general purpose, non-current-limiting, one-time fuses. Protect lighting, heating, and other circuits not subject to temporary surges and where available short-circuit currents are relatively low. Other Names: NOS400, NOS 400 Amp, NOS-400, NOS 400A, NOS400A, NOS-400A, NOS 400 Product specifications Ampere 400 A Voltage rating 600 VAC Interrupt rating 10 kA Speed Medium / Normal Blow Class Class K5 and H Fuse Shape Cartridge Blade Fuses Approvals CE, UL, CSA Substitute parts Littelfuse NLS, Mersen OTS Datasheet Bussmann NOS Datasheet Dimensions 2.06" Dia x 10 3/8" L (52.32x254mm) Item weight 3.54 lbs Other names NOS400, NOS 400 Amp, NOS-400, NOS 400A, NOS400A, NOS-400A, NOS 400 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.