We specialize in manufacturing High Current Air Cooled Variauto in Single Phase & Three Phase 100A, 200A, 400A. The picture shows single phase Variautos 200A each. Three Phase units are built by using such three stacks & motorizing them on common shaft. This is a substitute for Oil cooled units which are less preferred in many non hazardous application for safety reasons. They are very easy to maintain & service. Enclosed units can be manufacture as shown (200A, 440V). These variautos are more preferred for safety reasons over Oil Cooled variautos.