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Thread: MT Ballast

  1. #1
    Join Date
    Sep 2012
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    MT Ballast

    Have fixture with multi tap ballast being fed from 120/208v panel. They want circuits swung over to a 277/480v panel. Would we have to change the wiring at the ballast to another input/tap on the ballast for the higher voltage? Thanks

  2. #2
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    Jan 2009
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    Maryland
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    Yes.
    "Electricity is really just organized lightning." George Carlin


    Derek

  3. #3
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    Quote Originally Posted by jumper View Post
    Yes.
    Thanks,

  4. #4
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    Some multi-voltage ballasts will automatically adapt to the applied voltage, but some are reported not to ever work again on a lower voltage after they have been placed on a higher voltage circuit.

    If there are physical taps or tap wires, then it should be able to be converted in either direction by rewiring the tap connection(s).
    Last edited by GoldDigger; 10-31-17 at 09:26 PM.

  5. #5
    Join Date
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    Thanks. Someone told me that electronic ballast only have 2 leads so why or how could you rewire? Not necessary.

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