Jet GH 1440ZX
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Thread: Jet GH 1440ZX

  1. #1
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    Default Jet GH 1440ZX

    Just picked up a 1440 ,3 phase Motor 7.5HP was wired to 440v , changed it to 220v , my house is single phase only.
    my question is with the reduced voltage what size Phase-A-matic converter do I need ,seem to remember you reduce the volts the HP of the motor goes down. This Lathe will be used for light use in my garage,
    I have a 1200PMD converter on it . Turned on once and then nothing ?
    Any suggestions.
    Thanks Peter

  2. #2
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    Remove the word "Jet" from the title. Import names are not allowed.

    I had a Phase-A-Matic once. Expensive. I have a low opinion on them. I returned it and built my own converter.

  3. #3
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    The HP stays the same with the voltage drop, the amperage increases. Just Google for Ohm's law and you will find the formulas.

  4. #4
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    Imports are allowed as long as they are commercial grade machinery, a Jet made in China is considered a hobby machine. Since it is a manual machine, no need for a high end balanced converter. Any rotary converter rated for 7.5 HP motors will be fine.

  5. #5
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    1200PMD Converter ??

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    OK we know the drill here. Single phase small home shop chinese import...... Yeah, this one gets closed.

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