These highly compact branch circuit fuses are used in residential, mobile home and industrial applications. They have a minimum 300 volt rating and are available up to 60 ampere. All SC fuses are 13/32 inch diameter with varying lengths to provide a rejection feature that prevents over fusing (installing a 30 ampere fuse in a 20 A circuit). One half to 6 ampere SC fuses are fast-acting, while 7 to 60 ampere SC fuses are time-delay to permit temporary overloads to pass without nuisance openings.