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Absolutely not!! 277 volts is developed from a 480 volt power supply employing 1 conductor and a neutral. 240 volt power comprises two hot conductors and NO neutral.

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15y ago
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5mo ago

No, a 277-volt heater cannot be safely operated with a 240-volt power supply. Matching the correct voltage is essential for the safe operation of electrical devices. Using a lower voltage than the device is rated for can lead to insufficient performance and potential damage.

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Q: Can a 277 unit heater be supplied with 240 volts?
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A label.


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