Input Norminal Voltage 220 VAC Voltage Range 110VAC ~ 270VAC or 140VAC ~ 260VAC (selectable) Frequency 50 or 60 Hz (Auto Sensing) Output Voltage 220 VAC Output Voltage Regulation 10% Efficiency Normal Mode 95% AVR Mode 92% Protection Delay time 10 seconds Full Protection Short Circuit, Overload and Overvoltage Protection. Indication LED Display Normal indicator, AVR indicator, delay time setting and Fault indication LCD / Meter Display Input and Output voltage Physical Dimension (mm) D x W H 196.8 x 110 x 123.5