Model and Rated Operating Temperature Model THHN THWN THWN-2 TFN TFFN Operating Conditions 90℃ Dry 75℃ Dry or Wet 90℃ Dry or Wet 90℃ Dry or Wet 90℃ Dry or Wet Primary Uses and Characteristics THHN, THWN-2, and TFFN n...

UL 83 THHN/THWN-2 Building Wire – 600V Copper Conductor, PVC/Nylon (NEC 2023 Compliant) (For Commercial/Industrial Branch Circuits & Feeders in Dry/Damp/Wet Locations) Product Overview UL-listed general-purpose building wire with dual-...