THHN/THWN 14 AWG Solid Copper 150 ft Ground Wire - Durable

In this review of the 150 ft 14 AWG THHN/THWN solid copper wire, the bottom line is simple: this is a straightforward, durable grounding and building wire suited for residential, commercial, and industrial runs where a reliable green ground conductor is required. The reviewer found the wire's solid copper construction and dual-rated PVC with nylon sheath make installation and long runs easy to manage, and the product performed as expected for grounding, feeder, and control circuits while meeting common industry approvals.

Key Features

• Solid copper conductor: Provides strong conductivity and is easy to strip for clean terminations on grounding lugs and connectors.
• 150 ft length: A single 150 ft spool reduces joins on small to medium runs, making it convenient for many residential and light commercial jobs.
• THHN/THWN insulation: PVC insulation with a nylon sheath resists heat and moisture so the wire can be run indoors or in dry and damp locations.
• 600 V rating: Rated for common building circuits and approved for many electrical uses, giving installers confidence for a variety of tasks.
• Works with conduits and trays: Sized for use in conduit, table trays, machines, and control circuits for flexible installation options.
• UL and CSA certifications: Industry approvals indicate consistent manufacturing and suitability for professional installations.

Who It's For

This wire is aimed at electricians, installers, and DIYers who need a dedicated green grounding conductor for household branches, small commercial jobs, or equipment grounding. The solid 14 AWG copper is a good match for 15 A circuits and shorter feeder or control wiring where a robust, easily stripped ground is useful.

Those who should look elsewhere include users needing stranded conductors for flexible appliance leads, or projects requiring larger gauges for high-current feeders. Also consider different colors or spool lengths if you need long continuous runs beyond 150 ft without splicing.

Pros & Cons

Pros

• Well-made solid copper available in a clear green jacket that functions well as a ground conductor.
• Easy to strip and terminate, which speeds up installations noted by several users.
• Durable THHN/THWN insulation stands up to heat and moisture for indoor and outdoor-rated runs.
• Good value for the length and quality for residential and light commercial work.

Cons

• Color accuracy received mixed feedback, so the green shade may differ slightly from expectations.
• Solid conductor limits flexibility compared with stranded cable for highly flexible or vibration-prone applications.

Specifications

Conductor	Solid copper
Length	150 ft (50 yd / ~46 m)
Gauge	14 AWG
Insulation	THHN/THWN PVC with nylon sheath
Voltage Rating	600 V
Temperature Rating	90 C (194 F)
Approvals	UL Listed, CSA certified

Our Verdict

For anyone needing a dependable 14 AWG green grounding wire for typical household, office, or light industrial installations, this 150 ft THHN/THWN solid copper option is a pragmatic choice. It balances durability, ease of use, and industry approvals at a reasonable value, though users requiring maximum flexibility or exact color matching may prefer alternate constructions.

Frequently Asked Questions

Is this wire suitable for outdoor use?
Yes, the THHN/THWN insulation with nylon sheath is rated for indoor and outdoor damp locations, but follow local code for burial or direct-exposure requirements.

Can this be used as a grounding conductor?
Yes, it is presented and used as a green grounding conductor and is suitable for grounding applications in residential and commercial systems.

Will this work in conduit runs?
Yes, the solid 14 AWG conductor is sized to be pulled through conduit and table trays for feeders, branch circuits, and control wiring.