This sets the DC bus voltage threshold that the battery voltage must recover to before load bank 3, previously shed by disconnect3Voltage, is reconnected to the bus, per the description. Because reconnect3Voltage is normally set noticeably higher than disconnect3Voltage for the same bank, the plant requires the battery to actually recover - not just tick back over the exact disconnect point - before restoring bank 3, which prevents that load from chattering on and off as the bus voltage hovers near the disconnect threshold. A setting of 440 (44.0 volts), against a disconnect3Voltage of 400 (40.0 volts), builds in a 4.0-volt recovery margin before bank 3 comes back online.