NM-B 6/3 Wire with Ground 50ft - 6 AWG NM-B Copper Cable

Our review of the NM-B 6/3 Wire with Ground finds it best suited for homeowners and professional electricians who need a heavy-duty, indoor branch circuit cable for 120V/240V loads. The single biggest reason to buy is the solid copper 6 AWG conductors combined with a UL Listed NM-B jacket that makes it reliable for fixed, dry-location wiring such as subpanels, ranges, dryers, EV chargers, HVAC equipment and similar high-current circuits.

Key Features

• UL Listed NM-B: The UL listing ensures the cable meets recognized safety and performance standards for indoor residential branch-circuit wiring.
• 6 AWG copper conductors: 6 Gauge copper reduces resistance for efficient power delivery to high-load appliances and long runs.
• Three conductors plus ground: Two hots, one neutral and a 10 AWG ground provide the standard configuration required for many 120V/240V installations.
• Durable jacket: The PVC-sheathed NM-B jacket is stiff but manageable for easier pulling and stripping during installation in dry, concealed or exposed indoor locations.
• Wide temperature range: Rated from -10C to +90C, the cable tolerates typical indoor temperature extremes without loss of performance.

Who It's For

This cable is ideal for residential electricians, contractors and skilled DIYers installing permanent indoor circuits that require heavy-gauge wiring: subpanels, electric ranges, ovens, clothes dryers, EV charger branch circuits, and HVAC equipment where a 6/3 configuration is appropriate. It is designed for fixed installations in normally dry locations such as basements, garages and interior walls.

It is not for outdoor, wet or portable cord applications. If your project requires direct-burial cable, wet-location rating, flexible portable cord, or non-NM cable types, look elsewhere for a product specifically rated for those environments.

Pros & Cons

Pros

• Solid 6 AWG copper conductors deliver low resistance and dependable power for high-load circuits.
• UL Listed NM-B jacket provides recognized safety compliance for indoor branch-circuit wiring.
• Stiff but manageable PVC jacket makes pulling and stripping easier for typical residential runs.
• Good value for the gauge and construction, matching customer feedback on quality and cost-effectiveness.

Cons

• Not rated for outdoor, wet or damp locations, so additional protection or different cable type is required for those uses.
• The cable is not flexible enough for use as a portable cord or applications needing frequent movement.

Specifications

Our Verdict

The NM-B 6/3 Wire with Ground is a dependable, cost-effective choice for fixed residential 120V/240V branch circuits where a 6 AWG copper cable is needed. Its UL listing, robust conductors and practical jacket make it well suited to subpanels, ranges, dryers, EV charger feeds and HVAC lines installed in dry indoor locations; choose a different cable type for wet, outdoor or portable applications.

Frequently Asked Questions

Can this cable be used outdoors?
No. The NM-B 6/3 cable is rated for dry, indoor locations only and should not be used outdoors or in wet/damp areas.

Is the ground conductor the same gauge as the power conductors?
No. The ground wire in this NM-B 6/3 cable is 10 AWG, while the three current-carrying conductors are 6 AWG copper.

Can this cable be pulled through conduit?
Yes. The NM-B 6/3 cable can be pulled through conduit, pipe or raceways for protection as long as the installation remains in a dry location and follows local code.