Southwire 12 Awg Solid Copper Thhn Wire Black 500 Ft

Product Description

The SOUTHWIRE 12 is a 12 AWG solid copper THHN/THWN building wire rated for 600 volts and packaged on a 500 ft spool. The conductor uses a dual-layer insulation system: PVC over a nylon sheath that resists moisture, abrasion, and chemical exposure. This wire is a standard choice for branch circuit wiring in residential and light commercial construction, installed by licensed electricians pulling wire through conduit for lighting circuits, outlet runs, and general power distribution. The solid conductor construction suits fixed installations where flexibility is not a primary requirement.

This wire is suited for dry locations rated up to 194 degrees F and wet locations up to 167 degrees F, covering a wide range of indoor and outdoor conduit applications. The THHN/THWN dual rating means it meets requirements for both dry and wet environments under a single conductor, reducing the need to stock separate wire types for different location conditions. It is commonly used in commercial and residential branch circuit wiring, lighting circuits, and control wiring where a 12 AWG conductor is specified by the engineer or code requirement.

Key Features

• Solid copper conductor, 12 AWG, single conductor per run
• 600-volt rating suitable for standard branch circuit applications
• Dual THHN/THWN rating covers dry locations to 194 degrees F and wet locations to 167 degrees F
• PVC insulation with nylon sheath resists moisture, abrasion, and chemical exposure
• 0.12-inch nominal outside diameter allows installation in standard conduit fill calculations
• 500 ft spool quantity reduces mid-job splicing on longer runs

Compatibility

Designed for use in conduit systems where THHN or THWN-rated 12 AWG solid copper wire is required by specification or local electrical code.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before making any connections. Pull wire through conduit carefully, observing the minimum bend radius of 0.5 inches to avoid damaging the insulation or nylon sheath. Verify conduit fill percentages comply with NEC Chapter 9 tables before pulling multiple conductors through a single raceway.

Technical Specifications

• Conductor Material: Copper
• Conductor Size: 12 AWG
• Conductor Design: Solid
• Number of Conductors: 1
• Number of Strands Per Conductor: 1
• Voltage Rating: 600 volts
• Temperature Rating - Dry: 194 degrees F
• Temperature Rating - Wet: 167 degrees F
• Insulation Material: PVC with Nylon Sheath
• Insulation Color: Black
• Trade Designation: THHN/THWN
• Nominal Outside Diameter: 0.12 inches
• Minimum Bend Radius: 0.5 inches
• Overall Length: 500 ft
• Packaging: Spool
• Standards: UL E34382
• UNSPSC: 26121524

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 12