Bimetallic lugs-therefore, an important part of the newer electrical systems-are required to make a reliable interface between aluminum and copper conductors. These lugs are made from two different metals-aluminum and copper. Bimetallic lugs are of great significance in energy efficiency because they reduce the resistance and keep the connection from overheating. 1. Reducing Contact ... https://www.pioneerpowers.com/bimetallic-lugs-and-connectors.php