Connecting to photovoltaic combiner box

Mount the combiner box and secure it with four screws, as shown below. Use 4–10 mm2, 600 V insulated cables. Strip 8 mm of cable insulation. Ground the combiner box by connecting it to the inverter. [pdf]

Grid-connected photovoltaic inverter AC overvoltage

When the on grid inverter is detected that the grid voltage (AC voltage) exceeds the specified range, the on grid inverters must be turned off and stop working in order to ensure the safety of equi. [pdf]
[FAQS about Grid-connected photovoltaic inverter AC overvoltage]