The 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. 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. 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℉. With a high-flex PVC jacket and solid copper core, this THHN building wire bends effortlessly around corners and fits snugly through tight conduits. Cut-to-length customization makes it ideal for exposed and concealed wiring. With dual-layer insulation that handles humidity and temperature swings, this THHN electrical wire suits dry or controlled-controlled settings. Available in multiple pre-cut lengths, it fits home upgrades and factory equipment.