Designed for easy and efficient installation and provide electrical protection for the PV modules. Provide overcurrent protection, fuses, and surge protection, Type 1/2 lightning/surge arrester or Type 2 surge arrester. Versions with only surge protection and combinations with fireman’s switch are also available. Normally installed close to the PV modules. To speed-up installation, the PV combiner boxes are normally equipped with connectors for fast and easy installation.