Bimetallic lugs connect aluminum conductors to copper busbars. They are manufactured with Al–Cu friction welding to minimize corrosion. Distribution boxes are the nervous system of any electrical installation, silently managing the flow of power to every corner of your building. However, with the right tools, materials, and knowledge, it is entirely possible to connect copper and aluminum. Connecting aluminum wire to copper, while a simple process, involves safety considerations due to the distinct properties of these two metals. The most common and code-compliant methods involve using purpose-built anti-oxidant filled connectors like AlumiConn, COPALUM repairs. With WAGO Alu-Plus Contact Paste, they can connect aluminum and copper conductors using WAGO's connectors – quickly, easily and reliably.
[pdf] 