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This is determined by the size motor and the amount of amps the motor draws, be on the safe side and consult the owners manual or an Electrician.

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The sizing of the breaker and feeder wire is based on the amperage of the compressor. Look on the name plate and find the amperage. The amperage on the nameplate then has to be multiplied by the motors full load amperage and that value is used for the wire size. Because the load is a motor the FLA is again multiplied by 250% to size the breaker. This takes into allowance the high starting current of a motor from 0 to 100% RPM.

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โˆ™ 2012-09-11 23:33:48
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Q: What size amp circuit breaker should be used for a air compressor?
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