THHNUL 83 / UL 758
THHN/THWN 600V Building Wire
UL 83 listed 600 V building wire with nylon jacket — the North American standard for conduit and raceway wiring.
Type
THHN/THWN 600 V building wire
Standard
UL 83 / UL 758
Voltage Rating
600 V
Conductor
Solid or stranded bare copper
Jacket
PVC insulation + nylon jacket
- ✓UL 83 listed, 600 V, 75 °C (THWN) / 90 °C (THHN) dry
- ✓Solid 14–10 AWG and stranded 8 AWG–500 kcmil
- ✓Nylon outer jacket for oil and gasoline resistance
- ✓100% bare copper — full ampacity per NEC
- ✓Color-coded insulation for phase identification
- ✓Popular for conduit, raceway and panel wiring in North America
Full Specifications
Overview
Type
THHN/THWN building wire
Standard
UL 83, UL 758, CSA C22.2
Rated Voltage
600 V
Temperature Rating
90 °C dry (THHN), 75 °C wet (THWN)
Application
Conduit, raceway, panel and general building wiring (NEC)
AWG Range
14, 12, 10, 8, 6, 4, 2, 1, 1/0 – 500 kcmil
Construction
Conductor
Solid (14–10 AWG) or stranded (8 AWG and larger) bare copper
Insulation
PVC, color-coded
Jacket
Nylon (polyamide) outer jacket
Jacket Color
Black, white, red, blue, green, yellow, custom
Electrical Performance
Voltage Test
Per UL 83 (2 kV for ≤ 4 AWG)
Conductor Resistance
Per UL 83 / ASTM B3
Flammability
VW-1 rated
Ampacity
Per NEC Table 310.15(B)(16)
Packaging
Standard Length
500 ft / 1000 ft reels or coils
Packaging
Reel or coil, export cartons
Certifications
UL listed, CSA certified, RoHS
Specifications are indicative for the standard configuration and subject to change with continuous product improvement. Confirm final parameters with our sales team for your order.