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    arrio's Avatar
    arrio Posts: 1, Reputation: 1
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    #1

    May 11, 2010, 06:00 AM
    Can I use ac MCB in dc circuit?
    Can I use ac MCB in dc circuit?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    May 11, 2010, 06:09 AM

    Don't know if its Acceptable or OK, but I used to work with an Old Army Technician, and he had a 20 or 30 Amp Square D QO Type single pole breaker for protection coming off a 12 Volt Battery for Radio Testing. Never known of any problems.
    However, DC welds/ AC Breaks.
    He said Amps is Amps?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #3

    May 11, 2010, 06:29 AM
    The AC breaker will need to be rated to handle DC. Check the manufacturers datasheet.
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