Flexible Soft Starter Unit works using 208 - 690 V AC and 18.300 [in line] and 30.515 A inside delta current ratings. The Soft Starter Unit can be used for both in line and inside delta connection. The Soft Starter Unit requires 208- 690 V AC main voltage range to operate efficiently. Flexible Soft Starter Unit can be availed with the facilities of start ramp, stop ramp and initial voltage.