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ProGrade, Certified Electrical Contractor
Category: Electrical
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Experience:  28+ years exp. - installation, troubleshooting, & repair of commercial, & residential electrical systems.
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I replaced a 3phase 208v motor with singlephase 115v.. Has a

Customer Question

I replaced a 3phase 208v motor with singlephase 115v.. Has a control box with thermal protection.. What do i have to do
Submitted: 3 months ago.
Category: Electrical
Expert:  ProGrade replied 3 months ago.
Welcome to
The 3-phase motor would not have had a neutral at the motor. You will have to add a neutral from the electrical panel, routed through the motor starter to follow the phase conductor.
Make sure you have 120 volt to neutral on tbe phase/line input you would use for the single-phase motor. The overload protection will have to be sized ro the load of the new single-phase motor.

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