String combiner boxes (SCBs) are used in both small roof-mounted systems and large ground-mounted systems. Its functions include collecting and protecting strings as well as, if required, separating the panels from the rest of the system by means of a load-break switch.
Due to the high number of inverter manufacturers and various inverter topologies, the development and manufacturing processes must be organized in a flexible, streamlined way. The assembly service provider has to obtain a suitable string combiner box at short notice. This is the only way that they can adhere to the ever-decreasing times between quote and implementation of a photovoltaic system.
When developing such a solution, more and more customers demand that the standard for low-voltage switchgear and controlgear assemblies is taken into account. Of course, a CE declaration of conformity is also a must.
Phoenix Contact offers a variety of string combiner boxes for roof-mounted systems. In some cases, solutions can be ordered from available stock in the warehouse.
Furthermore, we are constantly working on optimizing our development and assembly processes. We can also offer solutions that are not part of our standard portfolio, within a short period of time.