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Southwire 500 ft. 12/1 Solid THHN Building Wire

Southwire 500 ft. 12/1 Solid THHN Building Wire

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Southwire 500 ft. 12/1 Solid THHN Building WireEquip your electrical projects with a dependable THHN building wire from Southwire. This 500 ft spool features a single solid 12 AWG…

Southwire MPN 11592358
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $0.99, average $0.49
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About Product Overview

Southwire 500 ft. 12/1 Solid THHN Building Wire

Equip your electrical projects with a dependable THHN building wire from Southwire. This 500 ft spool features a single solid 12 AWG conductor, wrapped in PVC insulation and a rugged nylon jacket, ready for conduit runs in a variety of environments. The vibrant yellow jacket makes circuit identification a breeze on busy job sites.

Key specifications

  • Conductor: 12 AWG solid (1 conductor)
  • Cable Type: THHN
  • Insulation Material: PVC
  • Jacket Material: Nylon
  • Color: Yellow
  • Length: 500 ft
  • Temperature Rating: 90
  • Voltage Rating: 600
  • Flame Retardant: Yes
  • UL Listed: Yes
  • Wet Location Use: Yes
  • Indoor/Outdoor: Indoor and Outdoor
  • Sunlight/UV Resistant: Yes
  • Conductor Type: Solid
  • Number of Conductors: 1

Why this THHN wire stands out

Southwire’s 12 AWG THHN building wire combines durable PVC insulation with a nylon jacket to withstand the rigors of conduit installations, while offering reliable heat resistance and flame retardancy. The solid conductor design reduces termination complexity and helps maintain stable, low-resistance paths. UL listing ensures compliance with common electrical codes, making it a trustworthy choice for commercial, industrial, and residential projects alike.

Practical applications

  • Feeder and branch wiring in commercial and industrial spaces
  • Conduit runs for indoor lighting, outlets, and control circuits
  • Wet location installations where moisture exposure is possible
  • Outdoor or semi-exposed installations where UV resistance is advantageous

Installation tips

  • Use appropriate conduit fittings and strain-relief to protect the solid 12 AWG conductor during routing
  • Follow local code requirements for wet locations and outdoor installations
  • Plan your runs to minimize splices, leveraging the 500 ft spool to reduce joints

The Details Specifications

Brand Southwire
SKU 36409
UPC 032886892783
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 500
Unit of Measure 500 SO
Dimensions (L × W × H) 7 × 7 × 5
Weight 12 lbs
Cubic Feet 0.14179 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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