The primary reason for opting for bi-metallic lugs instead of single-metal lugs is to create a safe, dependable, and corrosion-resistant connection between two different types of conductors—usually aluminum and copper—in electrical setups. While single-metal lugs work well when both the conductor and terminal are made from the same metal, they fall short when it comes to connecting di... https://www.pioneerpowers.com/bimetallic-lugs-and-connectors.php