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    loupi01's Avatar
    loupi01 Posts: 92, Reputation: 1
    Junior Member
    		  
    #1

    Feb 22, 2009, 09:40 AM
    Thhn wire
    Can thhn stranded wire be connected to circuit breakers in a electrical panel. What are the pro and cons (if there are any)?

    Thanks
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Feb 22, 2009, 09:47 AM
    It certainly can.
    There are no pros or cons. It is simply a type of wire. More accurately, a wire insulation type.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #3

    Feb 22, 2009, 09:52 AM
    THHN defines the insulation type of the wire. THHN insulated cable can be used in "Damp" or dry locations. Please see NEC section 310.13 for break down of the insulation properties.

    Yes it can be used in your panel box. The advantage of stranded or solid core is that it is more flexible.

    Can you please tell us a little more about what you are trying to accomplish?
    Tev's Avatar
    Tev Posts: 232, Reputation: 20
    Full Member
    		  
    #4

    Feb 22, 2009, 03:51 PM

    To expand on what donf said for the less knowledgeable visitors.

    Most THHN wire you buy today is also marked THWN which is what makes it suitable for wet locations. Wire labeled only as THHN cannot be used in wet locations.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #5

    Feb 22, 2009, 08:22 PM

    A point of correction, my response should have said Dry and Damp locations.

    THWN is listed as Dry or wet Locations.
    Tev's Avatar
    Tev Posts: 232, Reputation: 20
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    #6

    Feb 22, 2009, 08:48 PM

    I knew you knew, just wanted to point it out for those that might not. :)
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