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  1. 03-04-2013, 07:27 PM #1
    lemon
    lemon is offline Regular Guest
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    Question Compressor contacts

    Today I was checking contactors on a rack. They were controlling Carlyle compressors which only gave me an LRA of 120. Is a rule of thumb divide by 7 and that should be your RLA? With this information the contactors were 40amp I even found a 60 amp contactor. What size contactors should be installed?
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  2. 03-04-2013, 11:39 PM #2
    KickedGinger
    KickedGinger is offline Professional Member
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    Call Carlyle with the M# never use rule of thumb
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  3. 03-05-2013, 06:41 AM #3
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    timebuilder
    timebuilder is offline AOP Committee/Professional Member*
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    The current rating of a contactor CAN be greater than needed, but not LESS than needed.

    I agree that I would not be using a rule of thumb.
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