Our connectivity portfolio, stringboxes
Stringbox Simple
ultra low profile, up to 6 inputs
Stringbox Easy
ultra compact, up to 18 inputs
Duo-/Trio-Channel
Stringbox with galvanically isolated circuit boards
Stringbox BIG
stringbox for large systems and parks
AC Unterverteilung
customised variant with SPD T1+T2
specialboxes
kostenoptimiert - nutzenoptimiert
stringbox "big"
with surge protection
stringbox "samll"
with surge protection
Experience, for your safety!
Since 2010, we have been building string boxes and AC combiners in all variations and for the most diverse applications, especially in the PV sector. From simple DC disconnect boxes to complex junction boxes for multi-MW PV power plants, a large number of installations worldwide are equipped with Q3's proven technology. This experience is to your advantage - do not compromise - because the subject of connection technology in PV applications with high currents and voltages in sometimes complicated installation situations is also a safety issue.
Highest quality
We only use components from reputable manufacturers. The dimensions of the individual terminals, assemblies, connectors, etc. are precisely calculated and proven for use in the PV sector.