The Solarline generator connection boxes (GAKs) are used in both small rooftop systems and large ground-mounted installations. The main tasks of the GAKs include surge protection for the PV system, collecting strings if necessary, and routing the protective grounding conductor to the local grounding system. Additional functions are optional and depend on the equipment. Examples of optional features include string protection through string fuses and the disconnection of strings via DC load break switches or DC fire service switches. You can derive the full functionality of the GAK from its product designation.