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Internet # 202316285

Model # 63950005

Store SKU # 275034

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

Covers 500 ft.
$2,051.20
($4.10 /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

Wire residential indoor branch circuits for outlets, switches and other loads with Southwire Romex SIMpull 50 ft. Yellow 12-3-Gauge Type NM-B Cable. SlikQuik jacket allows for 50% reduction in pulling force for easier installation. NM has a heat capacity of 90˚C.

Highlights

Product Information

Internet # 202316285

Model # 63950005

Store SKU # 275034

Specifications

Total Wire Length (ft.): 500 ft

Dimensions

Total Wire Length (ft.)

500 ft

Details

Commercial/Residential

Residential

Conductor Material

Copper

Features

Heat Resistant, Jacketed

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

Is this wire rated for 1 jigawatt ?
ByMar 26, 2026
1 Answer | 
Answer This Question

Hello! Your inquiry is best handled by our specialized staff. Please email us at consumersupport@southwire.com, and we'll be happy to assist.

By|Mar 27, 2026


    what is the correct wire to use to run a short distance 6' from a breaker box 50 amp breaker to a 50 amp inlet box.
    ByJan 26, 2026
    1 Answer | 
    Answer This Question

    #6 THHN

    By|Feb 9, 2026


      What size PVC would 6/3 conduit fit inside of
      ByDec 31, 2025
      2 Answers | 
      Answer This Question

      Hi there, and thanks for reaching out! We'd like to hear more about your question, so that we can ensure that we're providing the most accurate answer. Please reach out to our dedicated team at consumersupport@southwire.com and we'll be happy to help.

      By|Jan 1, 2026

        Based on NEC standards, using 3/4" Schedule 40 PVC conduit for 6-3 NM-B cable is not allowed for most installations, as the cable's oval shape exceeds the 40% fill limit. A minimum 1-inch conduit is required for 6-3 NM-B. While #6 THHN/THWN conductors fit

        By|Feb 16, 2026


          Can u direct bury this cable
          ByNov 13, 2025
          2 Answers | 
          Answer This Question

          Hello, and thank you for your question. The 125 ft. 6/3 Black Stranded Romex SIMpull CU NM-B W/G Wire is suitable exclusively for above-ground installation within dry environments, and is not rated for direct bury. If you have any additional questions or feedback, please reach out to us at consumersupport@southwire.com.

          By|Nov 14, 2025

            6-3 nm-b is not permitted in a damp location [outside] and is not suitable for direct burial. Look for 6-3 UF or #6 THWN in conduit for direct burial applications.

            By|Feb 16, 2026


              What size ground is in this 6/3 and is the ground size rated for 50 amps
              ByNov 10, 2025
              2 Answers | 
              Answer This Question

              Hello! Your inquiry is best handled by our specialized staff. Please email us at consumersupport@southwire.com, and we'll be happy to assist.

              By|Nov 12, 2025

                The ground wire in 6/3 w/G nm-b is a # 10 bare copper, which is the standard, NEC-compliant ground wire size for a 50-amp circuit. You can confirm this as it is printed on the cable.

                By|Feb 16, 2026


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

                  Yes- this is normal for a range with a 50 amp double pole breaker.

                  By|Feb 16, 2026

                    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


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

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

                      By|Oct 3, 2025

                        No. No.

                        By|Feb 16, 2026


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

                          No: 6-3 NM-B is not permitted in damp locations.

                          By|Feb 16, 2026


                            Viewing 1-8 of 186

                            Customer Reviews

                            4.8 out of 5

                            • 4.8 out of 527 reviews
                            • 97% recommend this product
                            Filter by:
                            Showing 1-10 of 527 reviews
                            Home Depot made the purchase easy by allowing me to choose the length of wire I desired. It arrived in a timely manner for a simple install!
                            by
                            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 wasn't the wire I needed, so I returned it. I needed 6/3 with ground UF-B wire. Customer service personnel were excellent on the return.
                                by
                                • Verified Purchase
                                Works as expected. No issues with installation or with active use. Delivery seriously delayed and had to drive to store and purchase much more expensive option in order to support project schedule.
                                by
                                • Verified Purchase
                                This customer chose to rate the product and not provide text.
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                                • Verified Purchase
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                                Showing 1-10 of 527 reviews