... the power grid, the alternating current generated by the inverter is directly fed to the domestic distribution circuit, ... household appliances, etc.1.Single Phase Grid Tie Inverter Specification Model BNWG-1KD BNWG-2KD BNWG-3KD BNWG ... minuteCommunication connecting232 485 Extended temperaturerange -25~+60°CProtectionLow voltage,over voltage,wrong polarity ,over current,short circuit,overheatweight 20 ...