Autotransformer 120/240V - 100AAn Autotransformer can be used for step-up, step-down, and split-phase output balancing purposes.While the step-up and step-down functions are fairly straightforward, split-phase output balancing may require some more attention.Please contact your dealer for any returns, repairs or support issues related to this product. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No Owners Manual Url: https://productimageserver.com/literature/ownersManual/114914OM.pdf