McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    12 Products
    About Wire and Cable
    industrial info icon

    Compare wire vs. cable and choose the right option based on gauge, number of conductors, insulation, and current rating.

    Building Wire

    Install this copper wire in conduit and cable trays in commercial and industrial buildings. It's also known as branch circuit wire. The outer jacket is designed to be installed without applying pulling lubricant.
    Stranded Wire with Nylon Outer Jacket and PVC Inner Insulation
    Image of Product. TFFN, THHN/THWN, and THHN/THWN-2 Stranded. Front orientation. Building Wire. Building Wire, Nylon Outer Jacket, Stranded Wire.

    TFFN, THHN/THWN, and THHN/THWN-2

    Stranded

    Stranded wire is flexible, so it’s pliable enough to be pulled around corners.
    Wire with a nylon outer jacket resists oil and water.
    THHN Cable—THHN wire can be used in dry or damp locations where wire is exposed to condensation or moisture, such as a basement.
    THWN Cable—THWN and THWN-2 wire can be used in both wet and dry environments.
    UL 2556 VW-1—Flame rated VW-1 wire meets requirements for preventing the spread of flames based on a timed test with vertically suspended material.
    Shorter Lengths
    Longer Lengths
    AWG
    Wire Strand
    Count
    Current @
    Temp.
    OD
    Temp. Range,
    ° F
    Cable
    Designation
    Certification
    Flammability
    Rating
    Choose an Outer Jacket Color
    Choose a Length, ft.
    Per
    Ft.
    Lg.,
    ft.
    Each
    600V AC/600V DC
    14
    		19/27
    		15 amp @ 86° F0.11"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow25, 50, 100, 2507715T13000005007715T53000000
    12
    		19/25
    		20 amp @ 86° F0.13"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow25, 50, 100, 2507715T1400005007715T54000000
    10
    		19/23
    		30 amp @ 86° F0.16"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow10, 25, 50, 100, 2507715T1500005007715T55000000
     
    Solid Wire with Nylon Outer Jacket and PVC Inner Insulation
    Image of Product. THHN/THWN Solid Wire. Front orientation. Building Wire. Building Wire, Nylon Outer Jacket, Solid Wire.

    THHN/THWN Solid Wire

    Solid wire bends and stays in the position that you bend it. It’s easier to terminate than stranded wire.
    Wire with a nylon outer jacket resists oil and water.
    THHN Cable—THHN wire can be used in dry or damp locations where wire is exposed to condensation or moisture, such as a basement.
    THWN Cable—THWN and THWN-2 wire can be used in both wet and dry environments.
    UL 2556 VW-1—Flame rated VW-1 wire meets requirements for preventing the spread of flames based on a timed test with vertically suspended material.
    Shorter Lengths
    Longer Lengths
    AWG
    Current @
    Temp.
    OD
    Temp. Range,
    ° F
    Cable
    Designation
    Certification
    Flammability
    Rating
    Choose an Outer Jacket Color
    Choose a Length, ft.
    Per
    Ft.
    Lg.,
    ft.
    Each
    600V AC/600V DC
    14
    		15 amp @ 86° F0.1"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow25, 50, 100, 2507715T31000005007715T71000000
    12
    		20 amp @ 86° F0.12"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow25, 50, 100, 2507715T3200005007715T72000000
    10
    		30 amp @ 86° F0.15"-10 to 190THHN, THWN
    		C-UL Listed, UL Listed
    		UL 2556 VW-1
    		Black, Blue, Brown, Green, Orange, Red, White, Yellow25, 50, 100, 2507715T3300005007715T73000000
     
    back to top