PHÖNIX Contact generator connection box SOL-SC-4ST-0-DC-1MPPT-1001

The Solarline generator junction boxes (GAKs) are used in small rooftop systems as well as in large open-field systems. The main tasks of the GAKs are to provide overvoltage protection for the PV system, to collect strings if necessary and to loop through the protective equipotential bonding conductor to the local equipotential bonding.
Additional functions are optional and depend on the equipment.
 
Examples of optional functions include protecting the strings with string fuses and isolating the strings using a DC load break switch or DC fire switch.