An Autotransformer is a kind of transformer with only one winding wound on a laminated core. An autotransformer is similar to a two-winding transformer but differs in the way that the primary and secondary winding are interrelated. A part of the winding is common to both primary and secondary sides.

Single winding does not provide isolation, for use where equipment is already isolated and only voltage change is required.


  • Types: step up and step down autotransformer
  • Input & Output Voltage Available: 85V, 95V, 105V, 110V, 115V, 120V, 125V, 208V, 220V, 230V, 240V, 277V, 380V, 400V, 460V 480V
  • Power Rating: 100VA to 3000VA
  • Mounting method: chassis mounted, foot mounted, panel mounted
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