Fuse Block Fits Fuse Type Industrial Fuse UL Class R 401 to 600 A Number of Poles 3 250V AC/DC For Fuse Size 10 3/8 in L x 2 7/8 in dia Compatible Fuse Series A2D-R A2K-R FLNR FRN-R KLNR KTN-R KWN-R LLNRK LPN-RK TR-R Series RM Nonindicating Rejection Fuse Block Design Open Wire Range 4 AWG to 500 MCM Mounting Style Bolt-Down DIN Rail Body Material Thermoplastic Connector Type Box Lug Height 5.61 in Width 14.8 in Length 12.11 in