Solution for surge protection

Overview

Employee with a roof-mounted system  

Employee with a roof-mounted system

  • String combiner boxes are used in roof-mounted systems, to gather and protect strings, and if required, to separate the panels from the rest of the system.
  • A large portfolio of string combiner boxes for roof-mounted systems is available immediately; customer-specific solutions are produced at short notice.
  • The solutions correspond to the standard for low-voltage switchgear and controlgear assemblies and have the CE declaration of conformity.

Application

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.

SCB topologies for roof-mounted systems

Phoenix Contact provides various options for reliably protecting roof-mounted systems from surge voltages

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.

Solution

Type 2 DC surge protection for 5 strings  

Pre-wired SCB with generator isolator

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.

Your advantages

  • Large portfolio of SCBs in stock
  • Creation of customer-specific solutions at short notice
  • Rapid installation and startup
  • Standard-compliant switchgear and controlgear assembly, thanks to use of DIN EN 61439
  • Application-oriented consultation

PHOENIX CONTACT
SEA Pte. Ltd.

105 Eunos Avenue 3
#04-00
Singapore 409836
+65 6435 9800
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