Protection boxes are fundamental elements for the safe operation of solar and hybrid energy systems. These units contain the electrical protection components of the system, such as surge arresters, disconnect switches, fuses, and circuit breakers, which prevent damage in the event of overvoltage, short circuits, or overcurrents. Selecting the appropriate protection box is crucial for the system's lifespan and safety.

Most protection boxes have an IP65 or higher rated enclosure, making them suitable for both indoor and outdoor installation. Manufacturers offer pre-assembled, tested solutions that are compatible with both DC and AC side installations. These boxes are available for single-phase and three-phase systems, as well as in specific versions for the protection of hybrid inverters and battery systems.