High power electric locomotive, AC Electrical Multiple Units are powered by Hirects on-board or under slung rectifiers. Hirect rectifiers are also installed on board Diesel locomotives and Diesel-Electric Multiple Units. Rectifiers for special purpose like OHE cars, Mobile Maintenance Units, Accidents Relief vans etc. are also catered. On-board Installation and Under-carriage slung version of rectifier sets are manufactured by highly trained work force and specially created infrastructure for a high degree of reliability in critical traction application.