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

    Nov 20, 2007, 03:11 PM
    Electric space heater
    What size fuses do I use for a 480 volt space heater with it own fan that draws 24 amps
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Nov 20, 2007, 04:36 PM
    24 amps x 1.25 (125%) = 30 amps minimum overcurrent protection device. Of course, the fuses need to be rated to handle 480 volts, those typically used are rated 600 volts max.
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