... With surprising wholesale price this year. Powtran product: Frequency inverter/converter (AC drives), Soft starter, Braking unit, ... output voltage 220V, 380V, 460V, and 690V.(fluctuating 15%) 0.75~630KW 220~660V frequency inverter / converter/ ... regardsYours FaithfullyJason Bourne AC Drives, powtran frequency converter, frequency inverter, VFD VVVF variable frequency speed drive, motor drives, energy ...