Meet the Southwire 500 ft. 6/2 Stranded Romex Type NM-B WG Non-Metallic Building Wire—the trusted choice for durable indoor wiring that stands up to moisture and demanding installs. Built with two 6 AWG stranded copper conductors plus a copper grounding conductor, this NM-B WG cable is designed for long runs with ease, delivering reliable power to outlets, fixtures, and circuits throughout your project.
Why this NM-B WG stands out
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Stranded copper conductors provide superior flexibility and easier pulling through conduit or wall cavities, reducing kinks and making retrofit work smoother.
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Durable PVC insulation paired with a nylon outer jacket offers rugged resistance to abrasion and wear, helping the wire endure everyday construction activity and physical contacts in indoor environments.
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Moisture and wet-location capability rated, so you can use it in damp basements, crawlspaces, and other challenging indoor locations where moisture is a factor.
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UL Listed and rated for up to 600V with a generous temperature rating of 90°C, ensuring compatibility with a wide range of devices and safe, long-term performance.
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Direct burial capable in appropriate conditions adds versatility for projects that require transitional routing or burial inside protected channels, expanding the ways you can run power where it’s needed.
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Long 500 ft length minimizes joints and splices on large installations, saving time and reducing the number of splices in tricky spaces.
Who this is ideal for
-homeowners and professionals tackling interior electrical projects that demand reliability in damp environments
projects that require long runs from a central panel to outlets, lighting, or equipment within walls, ceilings, or basements
renovations or additions where a single spool covers the majority of the wiring run, reducing waste and stops for spliced lengths
Practical use cases and benefits
- Run a feed between the main panel and basement or attic outlets where moisture is present but indoor routing keeps the wiring protected
- Install in interior walls or crawlspaces where a flexible, easy-to-pull NM-B cable improves installation speed
- Use in projects requiring a robust 6 AWG conductors for subcircuits up to the rated ampacity while maintaining safe 600V operation
Technical snapshot
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Cable type: Romex Type NM-B WG Non-Metallic Building Wire
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Conductor gauge: 6 AWG
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Conductor material: Copper, stranded
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Number of conductors: 2 insulated conductors with copper ground
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Insulation: PVC thermoplastic
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Jacket: Nylon
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Voltage rating: 600V
Amp rating: 55A -
Temperature rating: 90°C
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Length: 500 ft
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Color: Black
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Indoor/Outdoor: Indoor
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Sunlight/UV resistance: Yes
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Direct burial: Yes
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Wet location use: Yes
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UL listed: Yes
When you’re wiring a project where reliability, flexibility, and moisture tolerance matter, Southwire’s 500 ft. 6/2 NM-B WG building wire delivers peace of mind and solid performance. Use it for indoor circuits that must endure damp conditions, and plan runs that keep splices to a minimum with a long spool that covers substantial portions of your project. For safe, code-compliant wiring that meets demanding specs, this NM-B WG cable is a dependable choice for serious electrical work.
