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I would like to change a Century Electric Motor Type CS, part number 8-135886-02 2hp, 12 amp, 230 volts to 120 volts outlet. This is on a Sears compressor.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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erpaalai
  • 999 Answers

SOURCE: i need to rewire a 239 volt motor to 120 volts.

There should be a wire diagram on the motor tag or under the coverplate. Eric

Posted on Aug 11, 2009

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c7121
  • 160 Answers

SOURCE: how do i change my century 2hp electric motor on

ASSUMING U HAVE 4 WIRES; 2-110V, 1-GROUND, 1-NEUTRAL. REMOVE AND OR DISCONNECT 1 OF THE 110V WIRES. IT STILL MAY NOT WORK PROPERLY BECAUSE U NOW JUST HALVED ALL THE VALUES; AMPS, OHMS, ETC.....CONSULT AN ELECTRICIAN 1ST.

Posted on Dec 13, 2009

SOURCE: I wish to take my 220 volt wiring and come off of

Um NO, It's only single phase. You need to get a suitable Amperage 220v - 120v step down transformer.

Posted on Feb 15, 2010

  • 313 Answers

SOURCE: too change rotation of a 5hp 230 volt

HAVE A LOOK INSIDE THE MOTOR CONNECTION BOX. SOMETIMES ON THE LID ARE INSTRUCTIONS OF HOW TO DO THIS. YOU DID NOT SAY IF THIS WAS A CAPACITOR START UNIT OR NOT. IF THERE IS A CAPACITOR ON THERE IT COULD BE NO GOOD WHICH WILL MAKE THE MOTOR GO WHERE IT WANTS. A GOOD CAPACITOR KICKS IT IN THE RIGHT DIRECTION ON SWITCH ON.

Posted on Jul 25, 2010

al_kupchella
  • 843 Answers

SOURCE: have a magnum air compressor

Yes. There should be a label on the motor indicating how to wire it for either voltage, something like the one shown here (which is also reversible - if yours is reversible, be sure you get the correct direction if you are going to change the wiring.) http://www.pirate4x4.com/forum/showthread.php?t=681437 The label is sometimes under the cover where you connect the wires. If not, you should be able to find a wiring diagram for it on-line once you determine the model number of the motor. Good luck, Al K

Posted on May 19, 2011

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I have a marathon 3hp motor wired for 220 on a campbell hausfield air compressor. It has a white, black, and green wire coming out of the motor. I am using a no. 12 wire with ground. how do i wire it up to...


Hi! sims146
The Green wire from the electric motor is ground. Check the compressor motor, make sure it is wired for 220-230 Volts. If it has a white wire it could be wired 120 Volts. There should be voltage and current ratings on the motor plate. I always double check these connections. At 230 Volts this motor should be 17 Amps full Load. A 25-30 amp fuses are required to protect this motor circuit. Otherwise up to a 42.5 Amp Inverse Time Delay Breaker could be used.
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I want to convert my compressor from 115 V to 220volt? There is nothing in the owners manual on how to do this. Can you help me?


Your garage mate unit was made to operate on 120 volts. That one reason there is nothing in the owners manual. To convert it my be costly.First your electric motor must be able to handle 220 volts. you will need to look on the motor tag and see if it has 120v/230v. if not you will have to purchase a new motor that will handle 220/230 volts.If your motor will handle 220/230/volts you need to look at the the wiring diagram attached to the motor. you then will need to purchase a 220 v plug and outlet and correct wire size to install.

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yes your ok if they say the unit doesn't need to be changed in the incomimg power from 208 up to 230 volts or vice-versa,normally they classify motors as120/208/ 230 /460 volts, instead of 120/240/480 volts,but all line voltage varies in this voltage range between 230 to 255 volts a.c. with a +10/-10 percent tolerance either way,and as long as the instructions dont say anything about changing motor connections your good to go, just look on the motor body if possible and make sure theres no wiring diagrams to change voltage,but i would say no in a package A/C like that, and as far as the current goes your good with the 20 amp tandem pole breaker,let me know if i can further assist you. thanks

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1 Answer

Well it is not an AO Smith, but I have an older Eneregair compressor with an Energair America motor 2 HP, 230v 12 amp. It says on the compressor that it is a 115/230, so I am wondering if it is possible...


Thank you for posting your question here on Fixya.com.

A 2 HP motor is usually only going to connect to 230V 1~ because of the high amp draw if ran on 115V. The motor itself should say 115/230 V and then would also read 24/12 Amp. It seems based upon your post it is not a dual voltage motor, likely for the reason I stated. You can not reconnect the motor from series to parallel because the winding connections to the leads are not brought out for you to do so. Otherwise it would be labeled for 115/230. You can of course try to get a 2 HP 115 volt rated motor or try to reconnect a circuit where you wish to use the compressor to bring the 230 V to it. In the long run, you would be better off running the motor on 230V.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!

John

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1 Answer

I want to re wire an electric motor for low volt


Look on the name plate. If it says under 'volts' 120/240 that means it's dual voltage and you can use either voltage to run.

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Diagram for aosmith motor b381 is here: http://www.electricmotorwarehouse.com/IMAGES/B381_connection.htm

However, I believe that this motor will be more efficient at 230v depending on load conditions. At 115v this motor will draw more amps and tend to run hot, but situation rules. Enjoy

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