Skip to content
Free Local Pickup Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted American Hardware Brands

Southwire 500 ft. 10/1 Solid THHN Building Wire

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Southwire 500 ft. 10/1 Solid THHN Building WireEngineered for reliable power distribution in demanding environments, this 500‑foot spool delivers a single 10 AWG solid copper condu…

Southwire MPN 11596457
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 $0.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Southwire 500 ft. 10/1 Solid THHN Building Wire

Engineered for reliable power distribution in demanding environments, this 500‑foot spool delivers a single 10 AWG solid copper conductor designed for THHN installations. With flame-retardant PVC insulation and a tough nylon jacket, it stands up to conduit runs, indoor/outdoor use, and challenging conditions where moisture or UV exposure is a factor.

Key specifications

  • Conductor: 10 AWG solid copper
  • Insulation: PVC; Jacket: Nylon
  • Voltage rating: 600 V
  • Temperature rating: 194°F (90°C)
  • Amp rating: 30 A
  • Number of conductors: 1
  • Color: White
  • Length: 500 ft
  • UL listed: Yes
  • Direct burial: Yes
  • Wet location: Yes
  • Indoor/Outdoor: Indoor and Outdoor
  • Sunlight/UV resistant: Yes
  • Stranded or solid: Solid
  • Ground material: Copper
  • Gauge/conductors: 10/1

Ideal applications

Use for conduit-fed branch circuits, panel wiring, and feeder runs in commercial or residential projects that require a 600 V rating and a solid copper conductor. The 500 ft reel minimizes reorders on larger jobs, while the white color enhances visibility inside conduits and wiring pathways.

Why Southwire THHN stands out

UL listed and built for durability, this THHN wire combines PVC insulation with a nylon jacket to resist abrasion and environmental exposure. Its flame-retardant construction adds an extra layer of safety for wiring installations in a variety of settings, including locations exposed to moisture and direct sunlight.

The Details Specifications

Brand Southwire
SKU 31666
UPC 032886845611
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 500
Unit of Measure 500 SO
Dimensions (L × W × H) 7 × 7 × 9
Weight 18 lbs
Cubic Feet 0.24103 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare