THHN is a 600-volt thermoplastic wire with a nylon jacket, rated 90 degrees C dry and 75 degrees C wet. THWN and THWN-2 are the wet-location versions, often printed on the same jacket in a dual rating. It runs in conduit, so every circuit on every job consumes it.
That also means every closeout leaves some behind: a riser that changed size, a panel schedule revision, or a coil of #10 that was opened for one pull.
| Specification | What we accept |
|---|---|
| Types | THHN, THWN, THWN-2, TFFN, MTW, dual-rated THHN/THWN-2 |
| Material | Copper and aluminum, solid and stranded |
| Sizes | #14 through 1000 MCM, including 250, 350, 500 and 750 MCM |
| Colors | Black, red, blue, white, green, brown, orange, yellow, gray, violet and striped |
| Format | Full reels, partial reels, spools, coils and boxed lengths |

How THHN is identified
- Print legend showing THHN or THWN-2 and the AWG size
- Stranded or solid, since the two price differently at small sizes
- Copper or aluminum — aluminum looks silver at a cut end
- Remaining footage, or a full reel with the tag attached
- Jacket color, especially for phase conductors and neutrals
Dual-rated reels are the norm
Most modern THHN is printed THHN/THWN-2 on the same jacket, which is why we ask for the legend rather than the color. A reel sold to you as THHN may be rated for wet locations, and that changes who can use it.
Wire and cable only
We do not buy transformers, switchgear, circuit breakers, MCCs, generators, bus plugs, chillers, machinery or unrelated scrap. Mixed loads are fine as long as we are quoting the wire portion.
Related wire types
Not sure what you have?
Read the print legend off the jacket and call +1 (614) 715-3047. For this material the tag, the insulation type and the footage are what we need.
Quote your thhn and thwn wire
Send the reel tag, the jacket legend and the footage. Photographs of the tag and the reel end are usually enough to give you a number.
- Statewide North Carolina pickup
- Full and partial reels
- No obligation to sell
Call +1 (614) 715-3047 or email saleselectricalbuyers@gmail.com.
Wire quote request
Tell us what you have and where it is. Photos of the reel tag and jacket legend help us respond faster.