PV AC combiner box is designed for photovoltaic systems that utilize string inverters. This combiner box is strategically placed between the AC output of the inverter and the grid connection or load. Equipped with both input and output circuit breakers, the PV AC combiner box has a primary purpose of consolidating the output currents from multiple inverters while also shielding them from potential risks originating from the AC grid connection or load. Our PV AC combiner box serves as a crucial point to disconnect the inverter’s output, significantly enhancing the safety of the entire photovoltaic distribution system and ensuring the well-being of installation and maintenance personnel.