Fuse Block, Fits Fuse Type Industrial, Fuse UL Class H, K5, 401 to 600 A, Number of Poles 3, 250V AC, For Fuse Size 10 3/8 in L x 2 19/32 in dia, Compatible Fuse Series NLN, NON, OT, REN, RF, RLN, Series HM, Nonindicating, Nonrejection, Fuse Block Design Open, Wire Range 4 AWG to 500 MCM, Mounting Style Bolt-Down, Body Material Thermoplastic, Connector Type Box Lug, Height 5.3 in, Width 14.8 in, Length 11.41 in, Spring Reinforced Clip Yes, Standards CSA Certified, UL Listed