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Internet # 202316279

Model # 63950002

Store SKU # 269018

Store SO SKU #1000316456

125 ft. 6/3 Black Stranded Romex SIMpull CU NM-B W/G Wire

Covers 125 ft.
$496.00
($3.97 /ft.)
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  • #6 AWG residential wiring for outlets, switches and other loads
  • Copper (CU) Conductors
  • 6 gauge has Black color-coded jacket for size identification
  • View More Details
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Product Details

About This Product

The Romex Type NM-B Copper Building Wire is thoughtfully designed with a patented SIMpull Cable Jacket, greatly facilitating pulling, stripping, and installation processes. Its prevalent use in residential building wiring as a branch circuit for switches and outlets underscores its reliability and practicality. Suitable exclusively for above-ground installation within dry environments, this cable boasts a sturdy voltage rating of 600-volts, ensuring robust performance. Notably, the NM-B cable offers versatile placement options, allowing it to be safely routed through air voids in masonry block or tile walls, provided these walls remain free from dampness. A point of pride, this cable is proudly manufactured in the United States, reflecting a commitment to quality and craftsmanship.

Highlights

Product Information

Internet # 202316279

Model # 63950002

Store SKU # 269018

Store SO SKU #1000316456

Specifications

Total Wire Length (ft.): 125 ft

Dimensions

Total Wire Length (ft.)

125 ft

Details

Commercial/Residential

Commercial, Residential

Conductor Material

Copper

Features

No Features

Gauge

6

Grounded

Grounded

Indoor/Outdoor

Indoor

Jacket Color

Black

Max Amps

55

Number of Conductors

3

Returnable

90-Day

Stranded or Solid

Stranded

Voltage (v)

600v

Wet Location Use

Dry

Wire Cut Type

Pre-Cut Length

Warranty / Certifications

Certifications and Listings

UL Listed

Questions & Answers

Can I use for range
BySep 17, 2025
1 Answer | 
Answer This Question

Hello, thank you for your question. This answer will require a more technical response. Please reach out to our technical team at cableteachsupport@southwire.com for a detailed explanation of your question.

By|Sep 18, 2025
    0/0


    Is this good for underground in a conduit
    ByAug 26, 2025
    0 Answer | 
    Answer This Question

    Is this good for underground in a conduit
    ByAug 26, 2025
    1 Answer | 
    Answer This Question

    No. Conduit is a wet location. Not rated for wet locations

    By|Oct 3, 2025
      0/0


      Can I run this to a garage through conduit outside
      ByJul 20, 2025
      1 Answer | 
      Answer This Question

      Hello, and thank you for your question. 75 ft. 6/3 Stranded Romex SIMpull CU NM-B W/G Wire may be used for both exposed and concealed work in normally dry locations. If you have any additional questions or feedback, please reach out to us at consumersupport@southwire.com.

      By|Jul 21, 2025
        0/0


        Can I use this wire for a 60 amp sub panel 50 ft from the main panel
        ByJul 6, 2025
        0 Answer | 
        Answer This Question

        Is this good for 18kw genator
        ByMay 30, 2025
        1 Answer | 
        Answer This Question

        No, it will not. #1. Feeder or branch-circuit conductors generally must have an ampacity not less than the noncontinuous load plus 125 percent of the continuous load (NEC 215.2(A)(1) or 210.19(A)(1), respectively). For a 50 A load, that means an ampacity of at least (50 x 1.25 =) 62.5 A. Since NM-B cable ampacities are limited to no more than those of 60°C-rated conductors (NEC 334.80), 6 AWG copper NM-B has an ampacity of 55 A (NEC 310.16). #2. A 50 Amp receptacle requires four wires, including the ground (NEC 551.71(C) and Figure 551.46(C)(1)). The 6/2 NM-B contains only three wires, including the ground. #3. Type NM-B cable is an indoor, dry location only product (NEC 334.10(A)(1)). It is not permitted in wet or damp locations (NEC 334.12(B)(4)). You may use our Re3™ Building Wire Selector to help find the right wire/cable. The above recommendations are based on Southwire’s general interpretations of the latest codes and standards including NFPA 70® National Electrical Code® Edition 2023 and the applicable UL standards. It is the sole responsibility of a licensed electrician and the discretion of the local AHJ (Authority Having Jurisdiction) to approve all the wire and cable products and installation methods to be used for a specific application at different locations. There might be local regulations or unique environmental factors that might limit the use of a specific product. Additionally, the same type of product manufactured by different vendors might also have an impact on the applications. As a result, our answers to this request above are for reference only, and we strongly advise the end users to consult with a licensed electrician and the local AHJ before purchasing and installing any Southwire products. Consumer Support

        By|Jul 18, 2025
          0/0


          What's the weight of the product
          ByFeb 5, 2025
          2 Answers | 
          Answer This Question

          365.015#s (lbs) Consumer Support

          By|Feb 7, 2025
            0/0

            Click on the 'View More Details' link on the product page leads to some Southwire information and chart showing this 6/3 wG wire weights some 360 pounds for 1,000 feet which works out to - by my math - some 45 pounds for this 125 foot roll.

            By|Apr 26, 2025
              0/0

              (1)

              What size conduit do I need to run 6/3 wire through?
              ByJan 26, 2025
              1 Answer | 
              Answer This Question

              Thank you for your recent inquiry with The Home Depot. The 6/3 NM-B wire itself doesn't require conduit if installed according to the National Electrical Code (NEC) guidelines for dry, protected locations. However, if the wire needs protection or is run through areas not defined as dry and protected, conduit is necessary. The conduit size depends on several factors, including the number of wires in the conduit and the type of conduit used (metallic or non-metallic). It's best to consult the NEC or a qualified electrician to determine the correct conduit size for your specific application. We appreciate your business and look forward to serving you in the future.

              By|Feb 11, 2025
                0/0


                Viewing 1-8 of 181

                Customer Reviews

                4.8 out of 5

                • 4.8 out of 518 reviews
                • 97% recommend this product
                Filter by:
                Showing 1-10 of 518 reviews
                The Southwire 6/3 stranded Romex was exactly what I needed for the wiring for my stove. The 25' length was perfect.
                by
                Run 90ft and easy to work with.
                by
                • Verified Purchase
                1 found this review helpful
                Excellent product ! Perfect for running 50 amp residential loads in the wall or attic space.
                Excellent product ! Perfect for running 50 amp residential loads in the wall or attic space.
                by
                • Pro
                • Verified Purchase
                • Recommended
                6 found this review helpful
                Worked perfect. Ran this wire to a sub panel with a 50Amp breaker supplying power in the main pa...
                Worked perfect. Ran this wire to a sub panel with a 50Amp breaker supplying power in the main panel. Needed to run two separate 20Amp outlets for garage refrigerator and freezer. Also ran an additional 20amp line for a garage outlet where I can use my saws or charge all my power tool batteries.
                by
                  • Recommended
                  4 found this review helpful
                  Great product. Just what I needed to wire my new sub panel. I got a better price online.
                  Great product. Just what I needed to wire my new sub panel. I got a better price online.
                  by
                    • Recommended
                    7 found this review helpful
                    This customer chose to rate the product and not provide text.
                    by
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    The exact length needed.
                    by
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    Exactly as ordered. The length was perfect for my connection. Order was receive promptly
                    by
                    • Verified Purchase
                    Showing 1-10 of 518 reviews

                    Compare Key Features

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                    Product Snapshot

                    Ideal for residential wiring, with easy installation and 600v rating ensuring reliable performance.
                    Ideal for residential wiring, this 10-gauge Romex SIMpull copper wire ensures easy installation and reliable performance.
                    Ideal for residential wiring, this 1000 ft. 12/2 Romex SIMpull copper wire ensures safe and reliable electrical connections.
                    Ideal for residential wiring, this 500 ft. 8/2 Romex SIMpull copper cable ensures easy installation with nylon jackets.

                    Wire Gauge

                    6
                    10
                    12
                    8

                    Number of Conductors

                    3
                    3
                    2
                    2

                    Ampacity

                    55
                    20
                    40

                    Voltage Rating

                    600v
                    600v
                    600v
                    600v

                    Fire-Resistant Insulation