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8
8/3 W/GRND NM-B 600V Stranded Black

8/3 W/GRND NM-B 600V Stranded Black

4.9(36 ratings)

Best price now

$3.39at NassauNationalCableChecked Nov 10

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Price facts

  • Last seen at $3.39 at NassauNationalCable on Nov 10.
  • Our take on the 8/3 W/GRND NM-B 600V Stranded Black

    This is 8-gauge, 3-conductor NM-B (Romex-type) copper cable with a ground, rated 600V and 40 amps. It is built for dry indoor branch circuits feeding switches, outlets and fixed appliances up to 40 amps, and can run in air voids inside tile walls under NEC Article 334. The stranded conductors make it easier to pull through conduit and tight runs than solid 8-gauge, and the ground is included so one cable covers the whole circuit. It suits homeowners and electricians wiring ranges, dryers, subpanels and heavy 240V circuits where 8-gauge is required.

    Best forWiring 40-amp appliance circuitsRange, dryer and subpanel feedsIndoor branch circuit runsElectricians pulling through tight paths
    Pros
    • Three insulated conductors plus a ground in one jacket
    • 40-amp ampacity covers heavy appliance circuits
    • Stranded copper pulls more easily than solid
    • 600V rating handles residential and light commercial work
    • Rated for dry indoor use up to 90°C
    Cons
    • Not for wet or outdoor locations
    • Not for burial or conduit outdoors
    • Stranded conductors need care when terminating
    • Only 8-gauge, so not for higher-amp feeders

    8/3 W/GRND NM-B 600V Stranded Black prices at every store

    • NassauNationalCableNew

      In stockReturn policy

      $3.39Checked Nov 10
      Visit NassauNationalCable

    What reviewers say

    • 4.9 / 536 ratings

    Buyers rate this cable highly, with 36 ratings averaging 4.9 out of 5. They describe it as the expected NM-B cable for 40-amp runs and report it pulls cleanly and arrives in good condition.

    What people mention
    • AmpacityPraisedBuyers confirm it handles 40-amp appliance circuits as expected.
    • PullingPraisedThe stranded conductors are reported to pull smoothly through runs.
    • ConditionPraisedOwners say the cable arrives intact and matches the listing.
    • TerminationsMixedStranded wire takes more care to land cleanly on lugs and breakers.
    • Indoor onlyCriticisedBuyers note it cannot be used outdoors, in wet areas or for burial.

    About the 8/3 W/GRND NM-B 600V Stranded Black

    This is 8/3 NM-B non-metallic sheathed copper building wire with ground, in a black jacket. It has three conductors and a bare ground wire. The conductors are soft stranded bare annealed copper with PVC insulation under a PVC jacket.

    It is used in residential branch circuits for switches, outlets and fixed appliances that need up to 40 amps. It is rated for 600 volts and for dry indoor use in environments up to 90°C. It can also be installed in air voids within tile walls, as permitted by NEC Article 334. The cable is designed for easy pulling.

    Type
    8/3 NM-B with ground (Romex-style non-metallic sheathed cable)
    Wire size
    8 AWG
    Conductors
    3, plus a bare ground wire
    Conductor material
    Soft stranded bare annealed copper
    Strands
    7
    Insulation
    PVC, 35 mils thick
    Jacket
    PVC, black
    Ampacity
    40 amps
    Voltage rating
    600 V
    Temperature rating
    Up to 90°C
    Installation
    Dry indoor use; air voids in tile walls per NEC Article 334
    Weight
    253 lbs per 1000 ft
    Common uses
    Electric ranges and ovens, HVAC systems, hot water heaters, large power tools, larger sub-panels
    Standards
    ASTM B-3 and B-8, UL Standard 83, UL Standard 719, Federal Specification A-A-59544, NEC (NFPA 70, 2011 Edition), RoHS/REACH

    Questions and answers

    What is 8/3 NM-B wire used for?
    It feeds dry indoor branch circuits up to 40 amps, such as ranges, dryers, subpanels and heavy 240V appliance runs. It is not for wet, outdoor or buried use.
    Does it include a ground wire?
    Yes. It has three insulated conductors plus a bare ground, so one cable covers the full circuit.
    Is stranded better than solid for this size?
    Stranded 8-gauge is easier to pull through conduit and tight bends. Solid is stiffer but can be simpler to terminate.
    Can it be run inside walls?
    Yes, it is permitted in air voids within tile walls under NEC Article 334 and in other dry indoor locations.
    What amp breaker does it take?
    The cable is rated for 40 amps, so it pairs with a 40-amp breaker for the circuit it feeds.
    Where is the 8/3 W/GRND NM-B 600V Stranded Black cheapest?
    At NassauNationalCable, for $3.39, as of our latest check.
    What do buyers say about the 8/3 W/GRND NM-B 600V Stranded Black?
    Rated 4.9 out of 5 from 36 ratings.

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