Fuse, 3 A, 600V AC, Not Rated, Class G, AG Series, Nonindicating, Fast Acting, Body Style Cylindrical, Rejection, Interrupt Rating 100kA at 600V AC, Fuse Size 1-3/8 in L x 13/32 in dia, Length 1 3/8 in, Diameter 13/32 in, Equivalent Brand and Series Bussmann SC, Littelfuse SLC, Mersen AG, Equivalent Series AG, SC, SLC, Body Material Fiberglass, Single Element, Standards CSA Certified to C22.2 No. 248.5, UL Listed 248-5 Fast-acting, nonindicating UL Class G fuses open within seconds of being exposed to overloads and short circuits. Also called fast-blow Class G fuses, they are highly sensitive to changes in current flow and don't tolerate temporary overload currents or power surges. They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block.