"The DC/DC 52V/1.15A booster module (DC / DC52115) is used to maintain a constant output voltage of 9.5-28 V DC at the 52 V DC voltage at the converter output. The maximum load current is Imax = 1.15 A (Pmax = 60 W). The module does not have galvanic isolation between the input / output (IN-AUX), it operates on the common ""ground"" potential (0V) (the IN- and AUX- terminals are galvanically connected = common terminal)."