Semiconductor Fuse, 450 A, 500V AC, 500V DC, FWH-A Series, Nonindicating, Fast Acting, Body Style Bolt-On, Nonrejection, Interrupt Rating 200kA at 500V AC, 50kA at 500V DC, Fuse Size 4-11/32 in L x 2 in dia, Length 4 11/32 in, Diameter 2 in, Equivalent Brand and Series A50QS, Bussmann FWH, Littelfuse L50S, Mersen A50P, Equivalent Series A50P, A50QS, FWH, L50S, Compatible Fuse Block Series 1BS, Body Material Fiberglass, Single Element, Standards CE, CSA Certified, UL Recognized