Attributes . Converter; Micromaster 420 With Built In Class A Filter 3AC 380-480V 10/-10 Percent 47-63HZ Constant Torque Power 4 KW Overload 150 Percent; For 60S Variable Torque Power 4 KW 202 X 149 X 172 Protection IP20 Ambient Temp -10 to 50 Deg C; Without Aop/Bop . Names