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Can you use 240V single phase power to power 277V fluorescent light fixtures?

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2007-07-09 14:30:17
2007-07-09 14:30:17

No...but you can buy an "autotransformer" that will boost the 220 to 277. Transformers of this kind can be the auto type or isolation type and are available at a much higher cost that it would be to just buy 220 volt ballasts and sell the 277 ones at your next yard sale. The fluorescent lamps probably won't start with such a severe undervoltage (80% rated). If they do start, they won't work well and the lamps will have reduced life.

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I do not believe any lighting fixtures of any voltage have ever been made to work off of three-phase circuits. Light Fixtures are always single-phase 2-wire circuits In the USA the standard voltages for branch circuits are: 120, 208, 240, 277 or 480 The light fixture must be rated to match whichever field voltage is being used. Some light fixtures are made multi-rated so they can be used on more than one circuit voltage

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Single phase power is good for small loads like lighting fixtures and heating devices.

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No because 277 volt is a single phase of 3 phase connected with the neutral. Of a 3phase 480V y system electrical service.

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