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Change from 220v to 110v on air compressor

Have a magnetek century ac motor on my air compressor. can this be changed from 220v to 110v? coleman powermate blackmax 5hp. p# - 10-182533-21, hp - spl, hz - 60, ph - 1, rpm - 3450

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  • trefle13c May 26, 2009

    thank you.

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I can't blame you for askig, but here's my response. 5 HP is 3750 running watts. or about 35 amps at 110 volts and it would take somewhere around 50 amps to start it provided the motor could even be wired for 110 which I don't believe it can and for that exact reason. I'm sorry, but it's just not practical.

Posted on May 18, 2009

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Posted on Jan 02, 2017

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1 Answer

Can I rewire my 220 compressor to 110 ?


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Hi Pete,
On the side of the motor on the label should be a wiring diagram. The diagram will tell you how to wire fro high 220v and low 110v ...
If the nameplate is single voltage only then the motor cannot be rewired for the lower voltage...
Also check the motor RPM nameplate as compared to the others...you may have a 1725 motor and the newer ones a 3450 motor...that would give them double the RPM's if the gearing or pulley sizes are the same...so.. if you have the right voltage and the RPM's of the motor are the lower, then you possibly could change the pulley sizes to speed up the compressor...

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