Fuse Block Fits Fuse Type Industrial Fuse UL Class H K5 201 to 400 A Number of Poles 1 600V AC For Fuse Size 11 5/8 in L x 2 19/32 in dia Compatible Fuse Series NLS NOS OTS RES RFS RLS Series HM Nonindicating Nonrejection Fuse Block Design Open Wire Range 4 AWG to 600 MCM Mounting Style Bolt-Down Body Material Thermoplastic Connector Type Box Lug Height 4.8 in Width 3.59 in Length 12.5 in Spring Reinforced Clip Yes Standards CSA Certified UL Listed