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flyhop

Finding wattage of various appliances

flyhop
10 years ago

Trying to determine wattage of various items as a survey of eletrical service to home. Need information please.

Clothes dryer label shows following:
120/240V 28A

VA = watts, so which Voltage to use in calculation of wattage?

I chased the "service" (is that what you call it) from the dryer to the breaker box. It's on a 30A double pole breaker. Help me understand what I'm seeing. Is this 120V for each half of the double pole breaker at 30A each? Totalling 240V at 30A at the dryer outlet?

If so, 240 * 30A = 7200 watts. That seem really high.

Not enough attention during physics class, I guess...or Ohm's Law has faded after 32 years.

Thanks in advance.

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