Fuse Block Fits Fuse Type Industrial Fuse UL Class H K5 31 to 60 A Number of Poles 1 250V AC/DC For Fuse Size 3 in L x 13/16 in dia Compatible Fuse Series NLN NON OT REN RF RLN 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 1.46 in Length 4.75 in Spring Reinforced Clip Yes Features Spring Reinforced Clip