14 AWG Solid Copper THHN/THWN Wire 75 ft - Purple - Indoor/Outdoor

Our review of this 14 AWG solid copper THHN/THWN wire finds it best suited for homeowners, electricians, and contractors who need a dependable grounding or building wire for runs up to 75 ft. The single biggest reason to buy is the combination of a solid copper conductor with a UV-resistant PVC and nylon jacket that is rated for indoor and outdoor use up to 600 volts and 90 C, which makes it a straightforward choice when low voltage drop and long installation runs matter.

Key Features

• Length and conductor: Includes 75 ft of solid copper conductor that minimizes voltage drop over longer runs for reliable grounding and feeders.
• Wire type: THHN/THWN construction provides dual-rated insulation suitable for many building wire applications in conduit or cable trays.
• Temperature and voltage rating: Rated to 600 V and 90 C (194 F), making it appropriate for typical residential, commercial, and light industrial circuits.
• Insulation: PVC with a nylon jacket offers moisture and heat resistance plus UV protection for indoor or outdoor routing.
• Compliance: UL listed and CSA certified with RoHS and other certifications, assuring compatibility with common electrical codes and installations.
• Made in USA: Manufactured in the United States for traceable quality control and consistent construction.

Who It's For

This wire is ideal for electricians, contractors, and DIYers who need a purpose-built grounding or building conductor for runs in homes, offices, or commercial spaces that require a solid copper THHN/THWN. The purple jacket also helps with color-coded installations where identification is important.

Those needing multi-conductor cable, flexible stranded conductors for applications requiring bending beyond conduit or for branch circuits that demand stranded wire should look elsewhere, since this is a solid 14 AWG conductor best used in conduit, cable trays, or fixed grounding runs.

Pros & Cons

Pros

• Solid copper conductor provides low resistance and reliable grounding over longer runs.
• Dual-rated THHN/THWN insulation with PVC and nylon jacket is heat, moisture, and UV resistant for indoor/outdoor use.
• UL listed and CSA certified, ensuring code-friendly installation and broad compatibility.
• 75 ft length offers a flexible solution for longer installation runs without costly splices.

Cons

• Solid 14 AWG is less flexible than stranded wire, so it can be harder to route in tight bends or when frequent movement is required.
• Single-conductor packaging means additional planning is needed for multi-conductor runs or color variety beyond the purple jacket.

Specifications

Conductor	Solid copper
Gauge	14 AWG
Length	75 ft (23 m)
Insulation	THHN / THWN PVC with nylon jacket
Voltage / Temp Rating	600 V, 90 C (194 F)
Certifications	UL listed, CSA certified, RoHS compliant
Made	United States

Our Verdict

For anyone who needs a dependable, code-friendly solid 14 AWG grounding or building conductor for runs up to 75 ft, this purple THHN/THWN wire is a sensible value. Its solid copper core, dual-rated insulation, and US manufacturing make it a reliable pick for fixed installations in residential, commercial, and light industrial settings where flexibility is not the primary concern.

Frequently Asked Questions

Is this wire suitable for outdoor use?
Yes. The PVC and nylon jacket is UV and moisture resistant and the wire is THWN-rated for outdoor conduit applications.

Can this replace stranded wire for branch circuits?
It can be used in many branch and feeder installations, but because it is solid copper it is less flexible than stranded wire and not ideal where frequent bending or movement is required.

Does this meet electrical codes?
The wire is UL listed and CSA certified and carries common certifications, which supports code-compliant installations when used per local regulations.