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To answer this question a voltage must be stated. W = Amps x Volts.

Assuming that you keep a tidy house, your power factor is always 1 ,

and you derate your circuit breakers 10% for safety . . .

If in a 120v circuit . . . P120 = 0.9 x 120 x 32 = 3,456 watts

If in a 240v circuit . . . P240 = 0.9 x 240 x 32 = 2 x P120 = 6,912 watts

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10y ago
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Q: How many watts can you use with a 32amp mcb?
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