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Copper wire

Copper wire is an excellent conductor and is widely used in electrical engineering and electronics. Roba supplies copper welding wire, solid bare and tin-plated grounding wire for lightning protection and electrical engineering. In addition to the standard range, we can help you, through our excellent network of manufacturers, with different dimensions, coil weights and packaging specifications.


Copper wire is made of electrolytic copper and usually annealed. Electrolytic copper is referred to as Cu-ETP and has a purity of at least 99.9%. Most copper wire has a circular cross-section and the thicker the wire, the smaller the resistance, increasing the amount of current that can be carried. All our copper wire products are produced according to EN 13601.