Copperweld® Building Wire is made with CCA, a bimetallic center-wire conductor where highly conductive oxygen-free copper covers its surface. As a result of its copper cladding, Copperweld building wire connects like copper. The core of CCA is composed of 8000 Series building-wire grade aluminum. Through the process of metallurgical bonding, Copperweld conductors are considered by the NEC to be galvanically similar to copper and dissimilar to aluminum.
Engineered for safety and efficiency.
Easy to handle
½ the weight of copper wire of the same ampacity rating, Copperweld building wire saves on hauling time and pulls easily through studs and conduits.
No retorquing required
Copperweld building wire bends smoothly and terminates for the life of the installation without retorquing. CCA is as thermally stable as copper under typical circuit conditions.
Terminates like copper
Copperweld building wire does not require oxide inhibitors. It is engineered to connect and terminate like copper.
Benefits of upsizing
Per the NEC, Copperweld building wire is generally upsized in circuits as compared to copper conductors. Upsizing Copperweld yields more efficient circuits and cooler electrical connections.
Less voltage drop
Increased circuit efficiency also yields the added benefit of allowing appliances, equipment and lighting to work better — even at the end of the circuit!
Download spec sheets for our Building Wire products.