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Thread: Capacitor start/induction run motor (switch) question?

  1. #1
    Join Date
    Aug 2005
    Beans
    6,025

    Capacitor start/induction run motor (switch) question?

    Please see attached diagram.

    My question is regarding the switch. I know it is a Single Pole Double Throw (SPDT) / Two Way Single Pole(UK) / Three Way Single Pole(USA) switch depending on where you live.

    Would this switch be make-before-break or break-before-make???

    I'm leaning towards break-before-make.
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  2. #2
    Join Date
    Dec 2006
    Beans
    256

    Re: Capacitor start/induction run motor (switch) question?

    Double-throw switches are almost exclusively break-before-make. Make-before-break two-way switches are available, but are quite uncommon (and typically need to be custom ordered).
    "We visited sixty-six islands and landed eighty-one times, wading, swimming (to shore). Most of the people were friendly and delightful; only two arrows shot at us, and only one went near -- So much for savages!" - J.C. Patterson

  3. #3
    Join Date
    Aug 2005
    Beans
    6,025

    Re: Capacitor start/induction run motor (switch) question?

    Thanks. I'll try and get a switch with the correct current rating today.

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