How do you change 120 volt to 220volt 2hp motor?

Answer 1

Is it 110/220 or just 220? There is a difference and also is it single phase or 3 phase?

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Generally, NO. On the other hand, a few motors were designed to be "convertible," in that their original windings were designed to work on multiple voltages by altering the wiring at the junction box terminals on the motor.

If it's not shown on a label inside the motor's junction box you'll need to find the Installation Guide for the motor, either by going on-line to the manufacturer's web site or by asking an electrical parts supplier for the info.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS

Answer 2

Unless it is a dual voltage motor it has to be sent to a rewind shop. There they cook the old winding out and completely rewind the coils and reinstall them into the old motor frame, then re-stamp the nameplate with the new amperage and voltage. If it is a dual voltage motor, reconfiguration of the wires at the motor junction box will do the job.

Answer 3

Answer for USA, Canada and countries running a 60 Hz power supply service.

If it is a 220 volt motor with split windings to run on 110 volts then there is usually a connection chart on the motor somewhere on or behind the motor wiring cover plate. There will be at least 4 lugs for running it in series for 220V or parallel for 110V and possibly a couple more terminals to reverse its direction.

Enter the model number of the motor on an internet search engine and see if you can find a wiring diagram.

<><><>

As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.

Answer 4

The linked site has just about any connection you might need. See related links below.

Answer 5

If it isn't a dual voltage motor you get it rewound. If cost is a factor then buy a 120 volt motor as the cost for a rewind is expensive due to the labour cost.

Answer 6

It needs a 110 to 220 v transformer rated at the correct power for the motor.

Answer 7

If it is a six wire motor go to http://apps.motorboss.com/connections/108323.pdf