Fuse Block Fits Fuse Type Industrial Fuse UL Class H K5 201 to 400 A Number of Poles 1 600V AC/DC For Fuse Size 11 5/8 in L x 2 19/32 in dia Compatible Fuse Series NLS NOS OTS RES RFS RLS Series 6HKRFB 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 15 in Spring Reinforced Clip Yes Standards CSA Certified UL Listed