KUP-L-Tap Insulation Piercing Connector, Mechanical connection, Dual Rated, Copper material, Tin plated connector, UL 486A/B Listed, C22.2 No. 65-03, Copper/Aluminum Primary Conductor 250 kcmil - 1 Str, Copper/Aluminum Secondary Conductor 4/0 Str - 6 Str, 2 conductors, Nylon insulation, Drive Type Main 5/8 External Hex, rated for 600 V, primary color Black, 1 poles,