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6/3 NM-B Wire w/ Ground - Sold By The Foot

6/3 NM-B Wire w/ Ground - Sold By The Foot

Best price now

$5.27at Global Cable and WireChecked Nov 10

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Price facts

  • Last seen at $5.27 at Global Cable and Wire on Nov 10.

    • Our take on the 6/3 NM-B Wire w/ Ground - Sold By The Foot

    6/3 NM-B is non-metallic sheathed cable with three current-carrying conductors plus a bare ground, used for dry indoor branch circuits such as ranges, dryers and subpanels. The conductors are copper, the insulation is color-coded PVC with a nylon jacket rated 90°C, and the cable is rated 600 volts. Ampacity is limited to the 60°C column under the NEC, so it carries less current than its 90°C insulation rating suggests. It is a commodity item: the differences between brands are sheath quality and copper gauge, not features.

    Best forWiring a range, dryer or subpanel indoorsResidential branch circuits in dry locationsElectricians buying exact lengths
    Pros
    • Three conductors plus ground in one jacket
    • Solid copper conductors, lead free and RoHS compliant
    • Meets UL 83, UL 719 and ASTM specs
    • Cut to the length you need
    Cons
    • Ampacity limited to the 60°C column
    • Not for wet or damp locations
    • Not for exposed outdoor runs
    • Stranded only at 8 AWG and larger

    6/3 NM-B Wire w/ Ground - Sold By The Foot prices at every store

    • Global Cable and WireNew

      In stockReturn policy

      $5.27Checked Nov 10
      Visit Global Cable and Wire

    About the 6/3 NM-B Wire w/ Ground - Sold By The Foot

    This is 6/3 Type NM-B non-metallic sheathed cable with ground, equivalent to Romex NM-B. It is used in normally dry residential installations, as branch circuits for outlets, lighting and other residential loads. It may be fished through masonry or tile walls where it is not exposed or subject to excessive moisture or dampness.

    The cable has three 6 AWG conductors plus a 10 AWG bare copper ground. The conductor insulation is color-coded PVC with a nylon covering, and a 30 mil color-coded PVC sheath covers the whole assembly. The cable is lead free and RoHS compliant.

    It is rated at 600 volts. The conductors are rated at 90°C dry, but ampacity is limited to 60°C under NEC 2008 and NEC 2011 Article 334.

    Type
    NM-B non-metallic sheathed cable with ground
    Wire size
    6 AWG
    Conductors
    3, plus a 10 AWG ground wire
    Length
    Sold by the foot; minimum 25 ft, maximum 1000 ft
    Voltage rating
    600 volts
    Ampacity
    55 amps
    Temperature rating
    90°C conductor insulation and sheath; ampacity limited to 60°C per NEC 2008 and 2011
    Conductor material
    Annealed soft bare copper per ASTM B3 and B8 (stranded for 8 AWG and larger)
    Ground
    Soft bare copper, 10 AWG
    Insulation
    Color-coded PVC with nylon covering, meeting Type THHN thickness
    PVC thickness
    0.76 mm / 0.029 in
    Nylon thickness
    0.13 mm / 0.005 in
    Sheath
    30 mil color-coded PVC
    Cable diameter
    16.0 mm / 0.62 in nominal
    Weight
    0.357 lbs per foot
    Standards
    UL 83, UL 719, Federal Specification A-A-59544, NEC, ASTM specifications
    Compliance
    Lead free, RoHS compliant

    Questions and answers

    What is 6/3 NM-B used for?
    Dry indoor branch circuits that need two hot conductors, a neutral and a ground, such as electric ranges, dryers and subpanels. It is not rated for wet or damp locations.
    How much current can 6/3 NM-B carry?
    The cable is rated 600 volts and its insulation 90°C, but the NEC limits ampacity to the 60°C column. Size the breaker to that limit, not to the insulation rating.
    Is 6/3 NM-B the same as Romex?
    It is equivalent to Romex NM-B: non-metallic sheath, color-coded PVC insulation with a nylon jacket, and a bare copper ground.
    Can 6/3 NM-B be buried or run outdoors?
    No. NM-B is for normally dry installations and may be fished through masonry or tile walls only where it is not exposed or subject to moisture.
    What lengths can I order?
    It is sold by the foot, with a minimum of 25 ft and a maximum of 1000 ft per order. Longer runs require a special order.
    Where is the 6/3 NM-B Wire w/ Ground - Sold By The Foot cheapest?
    At Global Cable and Wire, for $5.27, as of our latest check.

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