Siemens 6SE9221-8CC13 Micromaster Frequency InverterSpecifications :Micromaster MM400/2 Unfiltered 3AC 208-230V +/-10 50/60HZ Constant Torque: 4.0 KW Overload 150 60SEC Variable Torque: N/A 215 X 185 X 195 MM (H X W X D) Protection IP20 Ambient Temperature : 0-50 DEG C