12 AWG THHN Stranded Bare Copper Wire 200FT Green Grounding Wire

In this review the 12 AWG THHN stranded bare copper wire is examined for tradespeople and DIYers who need a reliable grounding or panel conductor. The bottom line: this 200ft green grounding wire stands out for its high-quality bare copper conductor, offering excellent conductivity and flexibility that make routing and terminations less fiddly than solid wire. It is best for projects that demand a durable, heat-resistant wire rated to 600V where ease of installation and weather resistance matter.

Key Features

• Bare copper conductor: The stranded 12 AWG copper offers superior conductivity for grounding and low-resistance connections in panels and circuits.
• THHN insulation: Thermoplastic high-heat-resistant nylon coating protects the conductor from heat, moisture, and typical jobsite hazards.
• 200ft length: A continuous 200ft spool reduces the need for splicing on longer runs and is convenient for whole-room or panel installations.
• Weather-resistant jacket: The nylon jacket resists oil, gas, moisture, and heat to maintain safety in indoor and outdoor environments.
• Stranded for flexibility: The stranded construction makes the wire easier to pull through conduit and maneuver in tight or complex setups.

Who It's For

This wire suits electricians, contractors, and experienced DIYers working on residential, commercial, or light industrial projects that require a reliable grounding conductor or panel wiring. It is particularly useful when runs require bending, pulling through conduit, or when connections need a pliable conductor for secure terminations.

Those who should look elsewhere include installers needing solid conductor wire for certain code-required applications or anyone requiring a different gauge or insulated color for live conductors; this product is specified as a green grounding conductor and is intended for grounding and related uses.

Pros & Cons

Pros

• Excellent conductivity from the bare copper conductor, which customers note as good quality.
• Flexible stranded construction makes pulls and terminations easier than solid wire.
• Durable THHN nylon jacket provides heat and moisture resistance for varied environments.
• 200ft length offers good value for larger jobs and reduces the need for joints.

Cons

• As a bare copper grounding conductor, it is not a substitute for insulated hot or neutral conductors in color-critical installations.
• Stranded wire can require ferrules or careful termination to ensure solid screw connections in some lugs.

Specifications

Gauge	12 AWG
Conductor	Stranded bare copper
Insulation	THHN thermoplastic with nylon jacket
Length	200ft
Voltage Rating	600V
Primary Use	Grounding, panel wiring, lighting circuits, control systems
Color	Green

Our Verdict

The 12 AWG THHN stranded bare copper 200ft grounding wire is a practical choice for electricians and capable DIY installers who need a flexible, weather-resistant grounding conductor that performs well in real-world conditions. It delivers dependable conductivity, easy handling, and good value for whole-run installations, making it a solid pick when a green grounding conductor is required.

Frequently Asked Questions

Is this wire suitable for outdoor use?
Yes; the THHN nylon jacket resists moisture, oil, and heat, making it suitable for many outdoor and damp-location applications when installed per code.

Can this be used for hot or neutral conductors?
No; this product is specified and identified as a green grounding conductor and should not be used as a live phase or neutral conductor.

Will the stranded conductor work with standard lugs?
Yes for most lugs, but in some screw-type terminations ferrules or care during tightening may be needed to ensure a secure connection.