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    kinaiahi's Avatar
    kinaiahi Posts: 3, Reputation: 1
    New Member
     
    #1

    Feb 24, 2007, 08:30 AM
    A/C Disconnect switch
    I am having a 36,000 BTU split system installed. This unit is 230/208v with 30 amp breaker. Instead of using the pull out style or lever style disconnects, would it be safe to use a 30 amp 120/277v a/c double pole toggle switch mounted in a appropriate weather proof box as my disconnect?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Feb 24, 2007, 01:32 PM
    I will say no, better to use the pull out style. The switch you are proposing must be listed as a motor-circuit switch, rated in horsepower, and several other qualifying criteria that mostly it is not, as per NEC Section 440.109 (A) (1).

    See the sticky, Read this First for a link to the NEC.
    kinaiahi's Avatar
    kinaiahi Posts: 3, Reputation: 1
    New Member
     
    #3

    Feb 24, 2007, 02:18 PM
    Thank you very much for responding. Yes, it is a motor-circuit switch. It is a industrial grade double pole grounding switch useed for motor operated equipment,water heaters, pumps etc. Here is a link to this switch. Please tell me what you think.

    Lowe's Home
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Feb 24, 2007, 03:03 PM
    Looks like your all set, I checked the Cooper site, and found this switch is rated for 2 HP or 24 amps, so your good to go.
    kinaiahi's Avatar
    kinaiahi Posts: 3, Reputation: 1
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    #5

    Feb 24, 2007, 05:45 PM
    Thank you!
    ryan_krammer's Avatar
    ryan_krammer Posts: 2, Reputation: 1
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    #6

    May 24, 2009, 01:16 PM
    No
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #7

    May 24, 2009, 02:23 PM
    That switch is probably around $20, plus a box to put it in, plus a cover.
    A pull-out is around $10 complete, plus less labor to install.

    What could your motive possibly be to use the switch??
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #8

    May 24, 2009, 02:23 PM
    Quote Originally Posted by ryan_krammer View Post
    no
    No what?? :confused:

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