Best 6 AWG THHN 500 Ft Cable Options for Your Electrical Projects
In this guide, we review top 6 AWG THHN-THWN-2 copper building wires available in 500-foot spools. These cables are suitable for power, lighting, and branch circuit installations across residential, commercial, and industrial projects. We compare conductor construction, insulation, temperature ratings, and installation practicality to help you choose the right reel for your run, conduit, or raceway needs.
| Product | Brand | Insulation | Rated For | Length |
|---|---|---|---|---|
| 500 Foot Spool 6 AWG 19-Stranded THHN-THWN-2 Copper Building Wire, Black Jacket | Arizona Electrical Solutions | THHN-THWN-2 | Dry & Wet Locations | 500 ft |
| Southwire 500 Ft. 6/1 Thhn Stranded Wire Black | Southwire | THHN/THWN-2 | Power, Lighting, Control | 500 ft |
| Cerrowire 112-4205J 500-Feet 6 Stranded THHN, Green | Cerrowire | THHN | General Wiring | 500 ft |
| 500′ GRN 6 Stran Wire | Southwire | THWN-2 | Wet or Dry, Up to 90°C | 500 ft |
| Electrical Grounding Wire #6 AWG Green, Copper, THHN-THWN2, 500 Feet Reel | Generic | THHN-THWN2 | Grounding & Bonding | 500 ft |
Note: All selections are suitable for use in conduit or cable trays, with varying insulation and jacket constructions. The following sections present detailed product-focused information to help you compare performance, flexibility, and installation considerations.
500 Foot Spool 6 AWG THHN-THWN-2 Copper Wire, 500 ft
Arizona Electrical Solutions offers a 500-foot continuous spool of 6 AWG copper wire with 19 strands. The THHN-THWN-2 rating supports versatile use in both dry and wet environments, making it a strong choice for residential and commercial installations. The black jacket provides durable protection and easy identification for wiring runs. This wire emphasizes excellent conductivity and reliable performance, suitable for feeders and branch circuits where long runs are required without frequent splicing.
Southwire 500 Ft. 6/1 Thhn Stranded Wire Black
Southwire’s 500-foot reel features 6 AWG stranded copper with flame-retardant PVC insulation and a nylon jacket. Rated for 600 volts, this general-purpose wire is suitable for power, lighting, and control applications. Its small diameter supports easier pulling through conduits and raceways, while the THHN insulation provides good heat resistance for both dry environments and damp spaces encountered in commercial buildings.
Cerrowire 112-4205J 500-Feet 6 Stranded THHN, Green
Cerrowire’s 6 AWG THHN option focuses on value and ease of use. The product emphasizes durability and user-friendly handling, with a green conductor suitable for grounding or identifiable circuits. Manufactured in China, it offers a cost-effective alternative for projects where reliability and standard electrical performance are required, particularly in dense conduit installations or cost-conscious builds.
500′ GRN 6 Stran Wire
This 500-foot Southwire option features THWN-2 insulation designed for wet or dry locations, with acceptable temperatures up to 90°C in wet conditions or 75°C when exposed to oil. The green color marks it as an ideal grounding conductor or for circuits where color-coding improves safety and maintenance efficiency. The smaller diameter and robust insulation support easy installation in multiple conduit environments.
Electrical Grounding Wire #6 AWG Green, Copper, THHN-THWN2
Generic’s grounding wire merges THHN-THWN-2 ratings with a PVC primary insulation and nylon outer sheath. This configuration provides protection against moisture, heat, and various chemical exposures, making it well-suited for grounding applications in tougher environments. The 500-foot reel offers extensive length for large grounding runs or multiple service upgrades while maintaining conductor flexibility due to stranded construction.
THHN-6-YEL-19STR-CU-500R Stranded Copper THHN Cable 6 AWG 500 ft Reel Yellow
This yellow THHN option is designed for conduit and cable tray installations in commercial or industrial settings. The 6 AWG copper conductor is stranded for enhanced flexibility, enabling easier pulling through tight spaces. The color coding helps with circuit identification on complex panels or large-scale electrical systems, while the THHN insulation provides reliable performance across dry and damp locations.
Buying Guide: Key Purchase Considerations
- Insulation and ratings: THHN-THWN-2 provides strong heat resistance and versatility for dry and wet locations. Consider the environment where the wire will run (indoor, outdoor, conduit, or raceways).
- Conductor construction: Stranded copper offers greater flexibility for long runs and easier pulling through conduits, compared with solid conductors.
- Temperature and voltage rating: Ensure the wire’s temperature rating (often up to 90°C for THWN-2) aligns with the expected load and environmental conditions, and confirm the system voltage (commonly 600V for building wire).
- Insulation and jacket: PVC insulation with nylon jacket adds protection and abrasion resistance. Some options have green insulation for grounding or color-coded circuit identification.
- Length and packaging: A 500-foot spool reduces waste and splicing, but confirm spool size is compatible with your installation equipment and pulling tools.
- Standards and compatibility: Look for UL-listed or recognized components to ensure compliance with local codes and safety requirements.
- Application scope: General-purpose THHN wires support feeders, branch circuits, and panels, while grounding-specific wires focus on bonding and safety.
When selecting a 6 AWG THHN-THWN-2 wire, balance electrical performance with installation practicality. For long, continuous runs in conduit, a flexible stranded copper wire on a 500-foot spool can save time and reduce waste. If grounding or color-coding matters for your project, choose green-insulated options or wires with distinct jackets to simplify maintenance and future troubleshooting.