Check the listing for details. 500 Feet 12 Stranded Copper THHN Wire (Black). Condition: New. Listed at 87.98 USD. The product is a 500 feet length of 12 stranded copper THHN wire in black color. It is manufactured by Southwire and features a single conductor wire with a wire gauge of 12. This wire is ideal for various electrical applications and is a reliable choice for power and data transmission. Its durable construction and high-quality materials make it a valuable asset for businesses and industrial projects requiring efficient and dependable electrical connections.The product is a 500 feet length of 12 stranded copper THHN wire in black color. It is manufactured by Southwire and features a single conductor wire with a wire gauge of 12. This wire is ideal for various electrical applications and is a reliable choice for power and data transmission. Its durable construction and high-quality materials make it a valuable asset for businesses and industrial projects requiring efficient and dependable electrical connections.