What is 480 volt 3-phase?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
480-volt three-phase is a common industrial power system in North America. It provides 480 volts between any two of the three phases (line-to-line voltage), while the phase-to-neutral voltage is 277 volts (480 ÷ √3). This voltage level is ideal for large motors, HVAC systems, and industrial machinery because it delivers more power with lower current, reducing wire size and electrical losses.
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