The GST25A28-P1J is a 28VDC 25A output switching power supply from the GS series manufactured by Mean Well. It features a wide range universal AC input from 90 to 264VAC and delivers a minimum load of 0.5A. Diode protection is incorporated for instantaneously short circuit protection. This power supply has a built-in active PFC function, constant current limiting and overload protection. It allows for low energy consumption, minimal noise, and no interference with external electrical noise. The GS series has Class "B" conducted EMI, and is approved to UL/CUL, CE, CB, and TUV standards. The enclosure is IP20 plastic case and is 10000 hours minimum MTBF at 25° Celsius ambient, as well as 0 to 40° Celsius operating temperature.