30 amp circuit with 50 amp breaker


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Old 04-29-17, 11:29 AM
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30 amp circuit with 50 amp breaker

I am looking to install some electric garage heaters sometime between now and November and was wondering about something. I have some 8 gauge wire coming in that will be able to handle the heaters I was looking to install. They will be 5000W, 240 volt heaters. (I am creating two separate circuits with separate wires and separate breakers.)
I already have a couple of 50 amp breakers. Could I use these to save the money of having to buy 30 amp, or should I buy 30 amp breakers to go with my new circuits?
 
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Old 04-29-17, 11:35 AM
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Buy the thirty amp breakers. Having breakers too big for the wire gauge is not only against code, it's a good way to start a fire if there is ever a problem with the wiring or heaters.
 
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Old 04-29-17, 11:36 AM
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Is this an attached or detached garage?
 
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Old 04-29-17, 01:16 PM
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It is an attached garage.
 
 

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