Premium Wire, Built to Last: Our THHN wire features durable dual-layer insulation with a dampproof outer jacket that stands up to rain and sun exposure. The convenient 100-foot pre-cut lengths slash splicing points, cutting down on failure risks

High-Efficiency Conductivity: Constructed with oxygen-free copper (OFC) conductors, this THHN building wire minimizes energy loss. Paired with an aging-resistant nylon jacket, it delivers steady performance even under heavy loads like garage heaters

Built for Tough Conditions: Rated for 600V AC and compatible with industrial equipment running from 230V to 460V. This THHN copper wire features a rugged PVC and nylon double insulation and is not easy to break from -13℉ to 194℉ (-25℃ to 90℃)