Southwire 21204301 Thhn Thwn 12 Awg 20A 500 Ft Solid Copper Wire

Product Description

The SOUTHWIRE 21204301 is a 12 AWG solid copper THHN/THWN building wire rated for 20 amps at 600 volts, supplied in a 500-foot length. The conductor is insulated with thermoplastic and jacketed with nylon in a purple color jacket, making it well suited for circuit identification in conduit runs. This wire carries dual THHN/THWN ratings, meaning it performs in both dry and wet locations. Licensed electricians install this wire in residential and light commercial applications where NEC-compliant branch circuit wiring is required. The solid core construction is standard for in-wall and conduit installations at this gauge.

This wire is used in residential and light commercial electrical systems for branch circuit wiring, panel feeder runs, and general-purpose conduit installations. The purple jacket aids in circuit identification and color-coded conduit pulls where multiple circuits share a raceway. It is rated for use in conduit, raceways, and cable trays in both dry and wet locations. The 500-foot spool length suits full-circuit pulls on larger jobs, reducing splice points and saving labor time.

Key Features

• Dual THHN/THWN rating — suitable for dry and wet location installations
• 12 AWG solid copper conductor rated at 20 amps, 600 volts
• Nylon outer jacket provides resistance to abrasion, gasoline, heat, moisture, and oil
• Thermoplastic insulation with maximum operating temperature of 194 degrees F
• Purple jacket color supports color-coded circuit identification in multi-circuit conduit runs
• RoHS compliant and UL Listed; meets ASTM, CSA, and Federal Specification A-A-59544 standards

Compatibility

Designed as a standard THHN/THWN replacement or new-installation wire for residential and light commercial branch circuits requiring 12 AWG solid copper conductors in conduit or raceway systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize and lock out the circuit or panel before pulling or terminating wire. Solid 12 AWG conductor is intended for conduit, raceway, or cable tray installations and is not recommended for applications requiring repeated flexing. Use appropriate wire-pulling lubricant when pulling through conduit to avoid jacket damage.