THHN wires

THHN (Thermoplastic High Heat-resistant Nylon-coated) building wire is the industry-standard conductor for commercial, industrial, and residential electrical installations. Designed for use in conduit or cable trays, THHN wire delivers reliable performance in high-temperature environments and is dual-rated THHN/THWN-2 for both dry and wet location applications.

Available in solid and stranded configurations, copper and aluminum conductors, and a full range of AWG sizes from 14 AWG through 1000 kcmil. Color-coded insulation simplifies phase identification and ensures code-compliant wiring installations.

Common Applications:

• Branch circuit and feeder wiring in conduit
• Commercial and industrial power distribution
• Control wiring and panel feeds
• Machine tool and appliance wiring

Specifications:

• Voltage Rating: 600V
• Temperature Rating: 90°C dry / 75°C wet (THWN-2)
• Insulation: PVC with nylon jacket
• Conductor: Copper (solid or stranded) or Aluminum
• Sizes Available: 14 AWG – 1000 kcmil
• Standards: UL 83 listed, NEC Article 310 compliant, RoHS compliant

Color Code Reference:

• Black, Red, Blue — ungrounded (hot) conductors
• White, Gray — neutral conductors
• Green, Bare — equipment grounding conductors