The PBL500PS57B from XP Power is a AC to DC Converter with AC Input Voltage 80 to 264 V, AC Input Current 2600 to 5200 mA, DC Output Voltage 57 V, DC Output Current 4.38 to 8.78 A, DC Output Power 250 to 500 W. Tags: Chassis Mount. More details for PBL500PS57B can be seen below.