Analogue/ Digital D.C Thyristor Drive can operate in wide input voltage range varying from 350V- 440V. The Thyristor Drive is a fully wave controlled unit that ensures optimum performance for longer period of time. The D.C Thyristor Drive is equipped with high speed fuses and line chokes for filtration. Analogue/ Digital D.C Thyristor Drive functions in speed and tension mode as well as field weakening mode.