AC sub-distribution

Generator connection box GAK AC Sub-distribution board Electrical distribution board



AC sub-distribution electrical distributor


Project example REC Romania

  • Customized AC Box for up to 24 inverters
  • Automatic 3-phase
  • IP54 housing
  • Cable entry via M cable glands
  • Coupled membrane ventilation
  • NH disconnector up to 1,000 A
  • ÜSS combined arrester T1+T2

String boxes and generator connection box from Q3

Our generator junction boxes ensure a high level of safety during installation and guarantee clean and clear wiring (wiring) of PV modules on the roof or in the open field. Several strings often have to be connected in parallel in order to transport suitable power to the inverter at reasonable system voltages. The individual strings are connected directly to the modules in the string box and connected to the inverter input with just two cables (plus and minus). Each generator connection box contains a pressure equalization element as standard for effective protection against condensation.

Our portfolio in the field of connection technology, string boxes, generator connection boxes (GAK)

Stringbox Simple

Extremely low profile, up to 5 inputs

Stringbox Easy

Extremely compact, up to 18 inputs

Duo/Trio channel

Stringbox with galvanically isolated circuit boards

Stringbox BIG

Generator connection box for large systems/parks

AC sub-distribution board customized variant

AC sub-distribution board

Customer-specific variant with ÜSS T1+T2

Special boxes

cost-optimized - benefit-optimized

Generator connection box "large"

with overvoltage protection

Generator connection box "small"

with overvoltage protection