PV Combiner Box is suitable for photovoltaic grid-connected and off-grid power generation systems. Single PV input array installs with high voltage fuse, its function over-load, over-charge protection. Anti-Backflow Diodes, Anti-Backflow & Anti-Reverse Protection, Touch-safe Circuit Breakers & Non-conductive Box. A professional high voltage breaker controls the output, with anti-circuit protection and makes the system more reliable and safe.