2/0-2 splt blt connector. Dual rated aluminum split bolt made from heat-treated aluminum alloy for maximum conductivity and strength for copper and aluminum conductors. Triangular edges bite into the conductor to break through surface oxides which eliminates wire brushing. Electro-tin plating provides low contact resistance. Spacer bar separates dissimilar metals, prevents galvanic corrosion. Hex head provides ease of installation with standard wrenches. UL listed, CSA. 1 per clamshell. 2/0 to 2 Str. AWG