Building Wire, 3/0 Stranded, Black, 500 Ft.

Introducing the Southwire 3/0 Black Stranded THHN Building Wire, a 500‑foot roll of premium copper conductor designed for demanding residential and commercial installations. This high‑visibility black cable features a durable nylon‑jacketed thermoplastic sheath that resists abrasion while maintaining flexibility for easy routing through conduit and raceways.

Why choose this wire? Its 90 °C temperature rating ensures reliable performance in hot environments, and the 600 V rating meets stringent code requirements for safety and efficiency. Whether you are wiring a new structure or upgrading an existing system, this stranded wire delivers consistent conductivity and reduced voltage drop.

• 3/0 Stranded Copper Conductor: Provides superior ampacity and flexibility for complex runs, ideal for heavy‑duty circuits.
• THHN Rating: Thermoplastic High Heat‑resistant Nylon jacket meets NEC standards for indoor and outdoor use.
• 90 °C Temperature Tolerance: Handles elevated heat loads without compromising insulation integrity.
• 600 V Voltage Capacity: Supports a wide range of residential, commercial, and industrial applications safely.
• 500‑Foot Length: Ample supply for large projects, reducing the need for multiple purchases and minimizing waste.

Ready for any job site: This Southwire building wire combines rugged construction with precise engineering, delivering dependable power distribution wherever it’s needed. Its black color enhances visibility against light‑colored surfaces, while the nylon jacket protects against cuts and chemicals. Choose this 3/0 stranded THHN cable for a trustworthy, code‑compliant solution that streamlines installation and boosts long‑term performance.