How to Convert 208V to 240V with a Single-Phase Isolation Transformer
Ravindra Ambegaonkar
Why This Voltage Mismatch Is So Common in the U.S. Most commercial buildings in the United States — restaurants, offices, retail stores, and light industrial facilities — are supplied with 120/208V three-phase power from a wye (Y) distribution system. This is the standard for commercial construction and works well for general lighting and light-duty loads.