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 6TFB Nonindicating Nonrejection Fuse Block Design Open Wire Range 600 MCM Mounting Style Bolt-Down Body Material Glass Filled Polycarbonate Connector Type Box Lug Height 3.09 in Width 3 in Length 5.75 in Spring Reinforced Clip Yes