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If the question means "two loads in one circuit" then the load currents have to be added together. The breaker that protects the circuit is sized for the total loading of the circuit. These two loads of course will be in parallel with each other. Find the wattage of the two loads if the amperage is not available. The equation is W = A x V.

Watts = Amps x Volts. Once the total amperage of the circuit is found select the correct wire size for that amperage. The breaker protects the wire size so then select the proper breaker for that wire size.

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Q: How do you protect two power in one circuit?
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