Bi metallic lugs are extremely well suited to both indoor and outdoor applications, which makes them a convenient choice for numerous electrical installations. Their design—aluminum barrel that is electrolytic and friction-welded to a copper palm—is such that there is a strong and corrosion-resistant interface between aluminum conductors and copper bus bars. Not only does this design ... https://www.pioneerpowers.com/bimetallic-lugs-and-connectors.php