Psd 300 indigenously designed variable frequency drive series is of high performance general purpose inverters that incorporate space vector modulation & igbt technology. The output is closely approximates a sinusoidal current wave form to allow variable speed control of any conventional squirrel cage induction motor & are equipped with most of user friendly function & features to enhance in utility. Psd300 have easy to operate keypad for parameter setting. Speed selection, external control & facility to connect rs-232 serial port (optional). Models:psd 301, psd 302, psd 303, psd 305, psd 308, psd 315