55W Single Output Power Supply Unit operates using AC input voltage of 85~132 or 170~264 VAC selected by switch. The Power Supply Unit requires 0. 7mA/ 230VAC input leakage current to perform efficiently. The Power Supply Unit finds application in printing and type setting industries. 55W Single Output Power Supply Unit is offered with short circuit, overload, over voltage and over heat protection along with lock for each output.