12 Gauge Ground Wire 50 ft Solid Copper - Indoor/Outdoor

In this review the 12 gauge ground wire is examined for homeowners and professionals who need a reliable grounding conductor for indoor or outdoor installations. The bottom line: this 50 ft roll of solid copper wire stands out for its sturdy construction and straightforward use as a grounding conductor, making it a solid pick when durability and compatibility with CATV and satellite systems matter. It is not for projects that require stranded flexibility, but for fixed grounding runs it delivers dependable performance.

Key Features

• Length and reach: A 50 ft (15 m) spool gives flexibility for medium to long runs without splicing, useful for routing ground from equipment to grounding points.
• Solid copper core: The solid 12 AWG copper conductor provides consistent conductivity and long term corrosion resistance for grounding applications.
• Insulation and jacket: THHN/THWN PVC insulation with a green nylon jacket makes the wire moisture resistant and suitable for both indoor and outdoor use.
• Voltage and temperature rating: Rated for 600 V and up to 90 C (194 F), it meets typical building wire requirements for general grounding service.
• Compatibility: Approved for common CATV, satellite and major cable service providers, so it works with antennas, cable runs and utility grounding needs.
• Certifications: UL listed and CSA certified, with additional compliance marks that back its use in residential, commercial and industrial installations.

Who It's For

This wire is suitable for electricians, contractors and DIYers who need a rigid, reliable grounding conductor for panels, antennas, water heater control panels and other fixed installations. Its solid construction and 50 ft length make it practical for many residential and commercial grounding runs.

Those who should look elsewhere include installers who require extreme flexibility for tight bends or vibration-prone applications, where a stranded ground conductor would be a better match. Also, if a project needs longer continuous runs than 50 ft without splicing, a longer spool should be chosen.

Pros & Cons

Pros

• High quality solid copper core provides strong conductivity and longevity for grounding.
• Durable PVC and nylon jacket resists moisture and stands up to outdoor conditions.
• Good value for the length and certifications provided, useful for multiple installation types.
• Compatible with common CATV and satellite systems, removing compatibility concerns for many installs.

Cons

• Solid construction means less flexibility than stranded wire, which can be awkward in tight bends.
• Some buyers noted minor variation in perceived length, so precise required lengths should be verified before purchase.

Specifications

Length	50 ft (15 m)
Conductor	Solid copper
Gauge	12 AWG
Insulation / Jacket	THHN / THWN PVC with green nylon jacket
Voltage Rating	600 Volt
Current / Temp	30 Amp nominal, 90 C / 194 F max
Certifications	UL Listed, CSA certified, RoHS compliant

Our Verdict

The 12 gauge 50 ft solid copper ground wire is a practical, cost-effective choice for grounding and general building wire use, particularly where a solid conductor and moisture resistant jacket are required. It offers strong compatibility with CATV and satellite systems and useful temperature and voltage ratings, making it a reliable pick for residential and commercial grounding runs, provided you do not need stranded flexibility.

Frequently Asked Questions

Is this wire rated for outdoor use?
Yes. The THHN/THWN insulation and nylon jacket are moisture resistant and rated for indoor and outdoor applications.

Can this be used for antenna grounding?
Yes. The product is compatible with major CATV and satellite systems and is commonly used for antenna grounding.

Is the conductor stranded or solid?
The wire uses a solid copper conductor, which is less flexible but provides consistent conductivity for fixed grounding runs.