Photovoltaic Ribbon

Ulbrich Precision Flat Wire is the world market leader for Copper and Aluminium PV ribbon. We began to supply the Solar Industry with our tinned flat copper wires back in 1988 and since then have continuously improved our production processes, and adapted them to the constantly evolving technology. We are constantly increasing our production capacity, as it is our goal to remain your reliable supplier for many years to come.


Currently our products are used in the following areas of PV module production:

  • tabbing ribbon to interconnect cells into strings
  • bus ribbon to interconnect the strings in a crystalline module, and their internal connection to the junction box
  • bus ribbon to collect the power from thin film modules and internal connection to the junction box
  • metal foils used as substrates for depositing thin film PV layers (flexible thin film manufacturing)


Our ribbons are rolled from round copper and hot-dipped afterwards, resulting in a burr-free and 100% completely coated ribbon ensuring perfect protection against corrosion or interaction with PV module encapsulants.
After careful analysis of your requirements, all our ribbons are manufactured exactly per your specification. All critical mechanical parameters of the ribbons will be adapted to best suit your production processes. We can produce any size (thickness/width) covered with a large variety of solder coatings (leaded and lead free) at the coating thickness you specify. Other special metal coatings, e.g. flash gold or silver coatings are also possible. By controlling the above parameters, our ribbons are well adapted for all soldering processes, as well as conductive adhesive and welding applications.

We realize the copper ribbon is a small, but very important part of your solar modules. Highest electrical performance and longterm reliability are essential to ensure this critical connection carries a maximum amount of power during the entire lifespan of your modules. Talk to our specialists today to help you select the optimum flat wire connector to suit your requirements.