The KUI30-33SB from Polytron Devices is a AC to DC Converter with AC Input Voltage 85 to 264 V, AC Input Current 400 to 800 mA, DC Input Voltage 120 to 370 V, DC Output Voltage 3.3 V, DC Output Current 6 A. Tags: DIN Rail Mount. More details for KUI30-33SB can be seen below.