Fuse Block Fits Fuse Type Industrial Fuse UL Class T 401 to 600 A Number of Poles 1 300V AC/DC For Fuse Size 3 1/16 in L x 1 1/4 in dia 3 1/16 in L x 1 5/8 in dia Compatible Fuse Series A3T JJN JLLN TJN Series T Nonindicating Nonrejection Fuse Block Design Open Wire Range 4 AWG to 600 MCM Mounting Style Bolt-Down Body Material Glass Polyester Connector Type Box Lug Height 1.63 in Width 3.44 in Length 3 in Features Space Saver Standards CSA Certified UL Listed