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    Jim Robinson 86's Avatar
    Jim Robinson 86 Posts: 1, Reputation: 1
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    #1

    Jun 14, 2008, 04:51 PM
    Maximum wattage per circuit
    I have a 15 amp circuit dedicated to low voltage lighting. Each transformer delivers 300 watts. How many can I connect and use at the same time?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jun 14, 2008, 05:11 PM
    Volts X Amps equals Watts 120 X 15 + 1800 Watts
    Derate by 80%(1800 X .8 = 1440 watts) Maximum you can use, will probably be on for more than 3 hours.
    4 is maximum I would use.
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