Victron Energy Autotransformer 120/240VAC-32A | ITR000100001What does Victron Energy Autotransformer do? The Victron Energy autotransformer is mainly used for step up step down and split phase output balancing. the step up step down converter functionality is a straightforward process allowing 220 240 devices to work with a 110 120 input from the primary voltage or 110v devices The step up step down feature is similar to any other voltage converter that takes the high or low primary voltage and transforms it