Fuse Block Fits Fuse Type Industrial Fuse UL Class R 401 to 600 A Number of Poles 1 600V AC/300V DC For Fuse Size 10 3/8 in L x 2 7/8 in dia Compatible Fuse Series A6D-R A6K-R FRS-R KLSR KTS-R KWS-R LLSRK LPS-RK TRS-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 6 in Width 4.89 in Length 15.11 in