Dual rated aluminium split bolt. Manufactured from heat treated aluminium alloy provides maximum conductivity and strength for copper and aluminium conductors. Electro-tin plated provides low contact resistance. Triangular edges bite into the conductor to break through surface oxides which eliminates wire brushing. Spacer bar separates dissimilar metals which prevents galvanic corrosion. Hex head provides ease of installation with standard wrenches. UL listed and CSA certified for 2000 V, 90°C ensures reliability for copper or aluminium conductors.