Finding a reliable 6 AWG THHN-THWN-2 cable for power, lighting, and grounding projects is essential for safety and performance. The following 5 options are all 500-foot reels or spools designed for professional and DIY installations. Each product delivers durable copper conductors, versatile insulation, and suitability for conduit or raceways. This guide compares features, ratings, and practical use cases to help you choose the right wire for your American electrical setup.
| Product | Brand | Key Feature | Insulation/Conductor |
|---|---|---|---|
| 500 Foot Spool 6 AWG 19-Stranded THHN-THWN-2 Copper Building Wire, Black Jacket | ARIZONA ELECTRICAL SOLUTIONS | Premium copper, THHN-THWN-2 rated | 19-strand copper, black jacket, 500 ft |
| Southwire 500 Ft. 6/1 Thhn Stranded Wire Black | Southwire | High-temperature rating, versatile use | Stranded copper, flame-retardant PVC insulation |
| Cerrowire 112-4205J 500-Feet 6 Stranded THHN, Green | Cerrowire | Durable, easy to use | Green 6 AWG stranded THHN |
| 500′ GRN 6 Stran Wire | Southwire | Grass-green grounding/THWN-2 rated | THWN-2 insulation, green copper |
| Electrical Grounding Wire #6 AWG Green, Copper, THHN-THWN2 | Generic | Grounding-rated, dual insulated | PVC insulation with nylon sheath |
500 Foot Spool 6 AWG 19-Stranded THHN-THWN-2 Copper Building Wire
The 500-foot spool from Arizona Electrical Solutions centers on premium copper with a 19-stranded configuration, delivering flexibility for tight bends and easier pulling through conduits. THHN-THWN-2 rating enables use in dry and wet locations, expanding its applicability beyond standard indoor runs. This cable is suitable for feeders, branch circuits, or service entries where a robust conductor and a durable jacket are required. The black jacket helps resist staining and provides a clean installation appearance in challenging environments. It is designed to minimize waste with a continuous length supply for efficient project work.
Southwire 500 Ft. 6/1 Thhn Stranded Wire Black
This Southwire option provides 6/1 stranded copper with flame-retardant PVC insulation and a nylon jacket. Rated for up to 600 volts, it suits power, lighting, and control wiring in conduit and raceways. Its general-purpose design supports both residential and commercial installations, especially where flexibility is a priority for routing through tight spaces. The product’s construction favors reliable conductivity and resistance to environmental factors, making it a versatile pick for varied electrical projects.
Cerrowire 112-4205J 500-Feet 6 Stranded THHN, Green
Cerrowire’s 500-foot reel focuses on durability and ease of use, with a 6-stranded THHN conductor. The green color typically signals grounding or specific circuit identification, depending on local code conventions. While described as highly durable and easy to work with, the product’s Chinese manufacturing origin is noted, which may influence sourcing considerations for some buyers. It remains a practical option for projects requiring a steady, long-length supply of copper THHN in a recognizable 6 AWG size.
500′ GRN 6 Stran Wire
This green 6-strand THWN-2 wire by Southwire is designed for wet or dry locations with a temperature rating that supports heavy-duty applications. The insulation combination is intended for reliable performance in conduit and raceways, where robust pulling and dependable protection against moisture are critical. It’s well-suited for grounding or large feeder runs that require a durable conductor with proven resistance to environmental stressors.
Electrical Grounding Wire #6 AWG Green, Copper
Generic grounding wire combines THHN-THWN-2 rated copper with PVC insulation and a nylon outer sheath. The dual rating makes it versatile for both dry and wet environments, with a higher temperature tolerance suitable for grounding tasks in challenging installations. The 500-foot reel format supports large projects, allowing consistent conductor length and reliable performance in grounding systems, service entrances, and equipment grounding practices.
THHN-6-YEL-19STR-CU-500R Stranded Copper THHN Cable 6 AWG 500 ft Reel Yellow
This yellow THHN 6 AWG 500-foot reel emphasizes suitability for conduit and cable tray installations in commercial or industrial settings. The 19-strand copper conductor enhances flexibility for routing through complex paths, while the yellow insulation aids in circuit identification. The product is positioned for services, feeders, and branch circuits, offering dependable conductivity and easy handling on larger builds.
Buying Guide: Key Purchase Considerations For 6 AWG THHN 500 Ft Cables
When selecting 6 AWG THHN-THWN-2 cable in 500-foot reels, consider conductor quality, insulation, temperature ratings, and end-use requirements. For residential projects, a robust, flame-retardant insulation with a flexible strand count improves pulling efficiency and reduces damage risks during installation. For commercial or industrial settings, assess voltage ratings, conductor flexibility, and resistance to environmental factors like oil, moisture, and heat. Color coding (green for grounding, yellow for feeders) can simplify future maintenance and code compliance. Always verify compatibility with local electrical codes and conduit or tray systems. If you plan frequent re-spooling or long runs, a continuous-length reel minimizes waste and speeds up installation. Compare brands on durability, ease of stripping, and pull strength to ensure reliable, long-lasting electrical performance.
In practice, the right choice depends on the balance between budget, project scale, and environmental conditions. THHN-THWN-2 rated cables perform well in both dry and wet locations, offering versatility for indoor and outdoor runs. For grounding applications, copper ground wires with appropriate insulation and outer sheathing provide a stable path to earth. When choosing 6 AWG wire, inspect insulation integrity, jacket thickness, and strand count. Stranded conductors improve flexibility, reducing installation fatigue and damage from bending radii. Finally, ensure that the 500-foot length suits your project’s layout to minimize splices and waste while maintaining a solid supply for future maintenance.