Fuse Block Fits Fuse Type Industrial Fuse UL Class H K5 31 to 60 A Number of Poles 3 600V AC/DC For Fuse Size 5 1/2 in L x 1 1/16 in dia Compatible Fuse Series NLS NOS OTS RES RFS RLS Series 2HKRFB Nonindicating Nonrejection Fuse Block Design Open Wire Range 14 to 2 AWG Mounting Style Bolt-Down Body Material Glass Filled Polycarbonate Connector Type Box Lug Height 2.12 in Width 4.66 in Length 4 in Spring Reinforced Clip Yes Standards CSA Certified UL Listed