Q3 string boxes (generator connection boxes) are manufactured individually according to your requirements from one unit upwards and vary in their features (type of housing, number of inputs and outputs, fuse/diode, etc.).

We can optionally build your box with a (remotely triggered) DC circuit breaker, overvoltage protection (T1+T2/T2), string current measurement, voltage measurement and data transmission - also wireless! This means that the right technology can be selected for every PV system variant.

• Competent and cooperative support during planning
• Quick and easy installation
• PV-optimized components
• Customer-specific = cost/benefit-optimized
• Suitable for every module type

>> Here you will find all general information about our customized connection technology

>> Stringbox Simple, extremely low profile, up to 6 inputs

>> Stringbox Easy, extremely compact, up to 18 inputs

>> Duo/trio channel, string box with galvanically isolated circuit boards

>> String Box BIG, generator connection box for large systems/parks

>> AC sub-distribution board, customer-specific variant with ÜSS T1+T2

>> Special boxes, cost-optimized, benefit-optimized