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Southwire 500 ft. 12 Stranded THHN Building Wire

Southwire 500 ft. 12 Stranded THHN Building Wire

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Southwire 12 AWG THHN Building Wire offers a reliable, indoor-only solution for dry-conduit wiring where durability and color-coded clarity matter. This 500 ft spool features a sin…

Southwire MPN 22971601
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
In-Store Exclusive

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About Product Overview

Southwire 12 AWG THHN Building Wire offers a reliable, indoor-only solution for dry-conduit wiring where durability and color-coded clarity matter. This 500 ft spool features a single, stranded copper conductor with thermoplastic insulation and a nylon jacket, engineered to handle everyday electrical installations with confidence.

Key specifications

  • Amp rating: 20 A
  • Brand: Southwire
  • Cable type: THHN
  • Conductor gauge: 12 (12 AWG)
  • Conductor material: Copper
  • Direct burial: No
  • Flame retardant: Yes
  • Ground material: Copper
  • Insulation material: Thermoplastic
  • Jacket material: Nylon
  • Number of conductors: 1
  • Product type: Building Wire
  • Stranded or solid: Stranded
  • Temperature rating: 90°C
  • UL listed: Yes
  • Voltage rating: 600 V
  • Wet location use: No
  • Wire length: 500 ft
  • Color: Brown
  • Indoor or outdoor: Indoor

Applications and installation considerations

  • Ideal for dry indoor conduit runs in both residential and commercial settings
  • Single-conductor 12 AWG copper for branch circuits, control wiring, and panel connections
  • Thermoplastic insulation with a nylon jacket provides durability in environments with regular motion or abrasion inside conduit
  • Not suitable for direct burial or wet locations
  • UL-listed for safety and compliance with standard electrical installations

Why this Southwire THHN wire stands out

  • Stranded copper conductor enhances flexibility for easier pulling through conduits and tight bends
  • Thermoplastic insulation paired with a nylon jacket delivers robust heat resistance and mechanical protection at 90°C, up to 600V
  • Flame retardant construction adds an extra layer of safety for indoor wiring projects
  • 500 ft length provides a ready-to-use spool for longer runs, reducing connections and waste
  • Indoor, dry-location suitability makes it a dependable choice for outlets, switches, and panel wiring in controlled environments

The Details Specifications

Brand Southwire
SKU 3014818
UPC 032886229503
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 500
Unit of Measure 500 SO
Dimensions (L × W × H) 7 × 7 × 5
Weight 13 lbs
Cubic Feet 0.13758 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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