China 1.5kw, 2.2kw, 4kw, 5.5kw Powtran Compect Size Frequency Inverter 50 to 60Hz for AC Mtor, Find details about China Frequency Inverter, Frequency Converter from 1.5kw, 2.2kw, 4kw, 5.5kw Powtran Compect Size Frequency Inverter 50 to 60Hz for AC Mtor