watts vs amps?

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  #1  
Old 10-23-05, 08:14 AM
Randy
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watts vs amps?

I am building a cabin on a separate hydro generator and can only get 40 amps max. The panel has a "priority" power grid. An electrician will wire the cabin. I do not know how to plan because how many amps do the baseboard heaters require if they need 1500 watts? Thanks!
 
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Old 10-23-05, 08:17 AM
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amps = watts/volts
1500 watts at 120 volts = 12.5 amps
1500 watts at 240 volts = 6.25 amps
 
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Old 10-24-05, 07:51 AM
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Originally Posted by Randy
I am building a cabin on a separate hydro generator and can only get 40 amps max. The panel has a "priority" power grid. An electrician will wire the cabin. I do not know how to plan because how many amps do the baseboard heaters require if they need 1500 watts? Thanks!
Just knowing the amperage is not enough; you need to know the power in Watts. You need to know both the amperage and the voltage to compute power: current (amps) * voltage (volts) = power (watts). If your generator is a 240V model at 40A you will have 9,600W of power available. If your generator is only a 120V model, you will have 4,800W of power available.
 
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