Fuse Block Fits Fuse Type Industrial Fuse UL Class H K5 201 to 400 A Number of Poles 1 250V AC/DC For Fuse Size 8 5/8 in L x 2 1/16 in dia Compatible Fuse Series NLN NON OT REN RF RLN Series 2HKRFB Nonindicating Nonrejection Fuse Block Design Open Wire Range 1000 AWG to 250 MCM Mounting Style Bolt-Down Body Material Phenolic Connector Type Box Lug Height 3.75 in Width 4 in Length 12 in Spring Reinforced Clip Yes Standards CSA Certified UL Listed