Manufactured from high strength 6061-T6 aluminum alloy - use with copper or aluminum conductor. Watertight connector, suitable for direct burial in earth or concrete. Rated for 600 volts for reliability. Range taking for reduced inventory needs. 500-750 kcmil items are clear plated for low contact resistance. Cover has dielectric strength of 240 volts per mil, nominal thickness of 125 mils. No taping required.