The SecSun unicobox light DC/AC junction box for 2 strings in parallel three-phase – 10 kW is a compact, ready-to-use unit designed for the protection, isolation, and monitoring of two independent photovoltaic strings in three-phase systems. On the DC side, each string is equipped with two 2P isolator fuse holders with 16A – 1000VDC fuses, a 600VDC surge arrester, and a 32A 600VDC load break switch for quick isolation and safety. On the AC side, the 4x20A 6kA 300mA Type A residual current circuit breaker protects the system from overloads and earth faults, while the Class II Imax 20kA single-phase surge arrester provides protection against voltage spikes. With an IP65 protection rating and compliance with standard CEI EN 61439-1/2, this junction box is ideal for outdoor installations, ensuring reliability, safety, and ease of maintenance.