Fuse Block, Fits Fuse Type Industrial, Fuse UL Class R, 201 to 400 A, Number of Poles 3, 250V AC/DC, Compatible Fuse Series FLNR, FLNR-ID, KLNR, LLNRK, Series LFR, Nonindicating, Rejection, Fuse Block Design Open, Wire Range 350 kcmil to 1/0, Mounting Style Bolt-Down, DIN Rail, Body Material Thermoplastic, Connector Type Box Lug, Height 11.50 in, Width 3.32 in, Length 10.50 in, Spring Reinforced Clip Yes, Features Clip Designs Maximize Electrical Contact and Minimize Heat Rise