Max. AC output power 55kVA, Rated Output Voltage 400Vac/480Vac, 4MPPTs with 8 strings input, not require DC fuse and combiner box, String level monitor, IP66 for outdoor installation, Smart Air Cooling, Type II SPD for both DC and AC, PID Recovery Integrated, Arc-fault Circuit Interrupter (AFCI) integrated; Rapid shut-down & module level management optional via full optimizer