Stringbox Simple


Schematic structure

The Simple string box is equipped with 2 to 6 inputs, which can be externally connected via H4 or MC4 connectors. Internally it is fully wired, with a PCB, which can be equipped with diodes and/or PV fuses. Both outputs are also implemented with H4/MC4 plug connectors. The cable cross-section can be between 2.5 and up to 10/25 mm².

  • Extremely flat design
  • Quick and simple installation
  • Value for money
  • Flexible protection with fuses and/or diodes

Fields of application

Small string combinations of modules with a maximum total output current of up to 30A.




An overview of the most important features:

Our Connection Technology

Stringbox Simple

Cost-effective and light-weight string box with 2 up to 5 inputs for small crystalline modules and thin-film installations.

Stringbox Easy 3G

Compact and lightweight string box for small to medium-sized string combinations and thin-film systems of all types up to 18 inputs.

Easy Duo/Trio Channel

String box due to the electrically isolated PCBs which two oder three different MPP trackers or inverters can be operated with a single box.

Stringbox BIG

Generator connection box for large systems of the order of megawatts, openfield plants, large roofmounted systems, e.g. on factory buildings.


Customized AC Box for connecting up to 20 inverters project example REC Romania.


Further examples regarding our customized connection technology including pictures.

General information

What is a string box? Usage of fuses or diodes? What about monitoring, OVP, ...???