3 phase 380v input , 3 phase 380v output . from 0.75kw to very big Dimension L*W*Hmm: 118*156*185 Maximum frequency: Vector control: 0~600Hz | V/F control: 0~3200Hz Carrier frequency: 0.8kHz~12kHz. The carrier frequency automatically adjusted based on the load features. Control mode: Open-loop vector control (SVC), Closed-loop vector control (FVC), VF control.