NSI Miniterms Uninsulated butt splice features sturdy copper construction with tin-plating for corrosion resistance. It accommodates 2-Wire of size 12 - 10-AWG. Butt splice color-coded in silver, aids for easy identification. It is perfect for splicing wire and withstands temperature rating of up to 105 deg C. This butt splice is well suited for high voltage applications up to 600-Volts. Butt splice is UL listed and CSA certified.