APPLICATION: General purpose wiring for lighting and
power - residential,
commercial, industrial buildings in accordance with the
National Electrical
Code, maximum conductor temperature of 75°C in wet
or dry locations,
for circuits not exceeding 600 volts
STANDARDS:
1. Listed by UL as Type THW per Standard 83.
2. All sizes carry the VW-1 flame test designation.
3. Listed by UL as Oil Resistant I.
4. Listed by UL as Sunlight Resistant (250 kcmil and
larger, black only)
5. 250 kcmil and larger pass UL and IEEE-383 ribbon
burner flame test
and are listed For CT Use.
6. Conforms to Federal Specification J-C-30B.
CONSTRUCTION: Annealed uncoated copper
conductor, PVC insulation,
surface printed.

thhn: copper conductor with pvc insulation and nylon sheath
THW: copper conductor with 75C pvc insulation, no nylon sheath
TW: Copper conductor with 65C PVC insulation and no nylon sheath
Conductor: Copper
Insulation: Pvc or outer is nylon, or outer isn't nylon
Section area: 0.75sqmm - 240 sqmm