• CU THHN/THWN-2
Application:
General purpose building wire for services, feeders and branch circuits. Suitable for use in conduit and raceways; 1/0 and larger for cable tray use.

Construction:
  • Conductor is bare annealed copper per ASTM B-3.
  • Stranded conductors per ASTM B-8 or B-787.
  • Insulation is color coded premium grade flame retardant PVC (polyvinyl chloride).
  • Jacket is tough polyamide nylon.
  • VW-1 AWG rated through 4/0 AWG.
  • 1/0 AWG and larger rated for CT use.
  • 1/0 AWG and larger rated Sunlight Resistant.
  • Gasoline and Oil Resistant II.
  • Resistant to abrasion, acids, alkalines, ozone, and water.
Standards:
  • ASTM B-3 and B-8 or B-787
  • UL Standard 83 - THHN/THWN-2
  • UL Standard 1063 for machine tool wire
  • NEMA WC5/ICEA S-61-402
  • Federal Specification JC-30B
  • OSHA acceptable
  • NFPA 70 (NEC®)
  • NFPA 79 AWM 600 V 105 ºC (75 ºC in oil).
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Item #

Size
(AWG or kcmil)

Number
of
Strands

Insulation
Thickness
(mils)

Nylon
Jacket
Thickness
(Mils)

Approximate O.D.
(Inches)

Ampacity
75 ºC
Wet

Ampacity
90 ºC
Dry

Shipping Weight
(lbs. per MFT)

N/A 14 N/A Solid N/A 15 N/A 4 N/A 0.102 N/A 20 N/A 25 N/A 17
N/A 12 N/A Solid N/A 15 N/A 4 N/A 0.118 N/A 25 N/A 30 N/A 25
N/A 10 N/A Solid N/A 20 N/A 4 N/A 0.150 N/A 30 N/A 40 N/A 39
N/A 14 N/A 19 N/A 15 N/A 4 N/A 0.110 N/A 20 N/A 25 N/A 18
N/A 12 N/A 19 N/A 15 N/A 4 N/A 0.128 N/A 25 N/A 30 N/A 27
N/A 10 N/A 19 N/A 20 N/A 4 N/A 0.161 N/A 35 N/A 35 N/A 40
N/A 8 N/A 19 N/A 30 N/A 5 N/A 0.212 N/A 50 N/A 55 N/A 69
N/A 6 N/A 19 N/A 30 N/A 5 N/A 0.250 N/A 65 N/A 75 N/A 109
N/A 4 N/A 19 N/A 40 N/A 6 N/A 0.318 N/A 85 N/A 95 N/A 166
N/A 3 N/A 19 N/A 40 N/A 6 N/A 0.345 N/A 100 N/A 105 N/A 202
N/A 2 N/A 19 N/A 40 N/A 6 N/A 0.375 N/A 115 N/A 130 N/A 254
N/A 1 N/A 19 N/A 50 N/A 7 N/A 0.430 N/A 130 N/A 150 N/A 316
N/A 1/0 N/A 19 N/A 50 N/A 7 N/A 0.470 N/A 150 N/A 170 N/A 398
N/A 2/0 N/A 19 N/A 50 N/A 7 N/A 0.515 N/A 175 N/A 195 N/A 488
N/A 3/0 N/A 19 N/A 50 N/A 7 N/A 0.565 N/A 200 N/A 225 N/A 603
N/A 4/0 N/A 19 N/A 50 N/A 7 N/A 0.620 N/A 230 N/A 260 N/A 731
N/A 250 N/A 37 N/A 50 N/A 7 N/A 0.730 N/A 255 N/A 290 N/A 903
N/A 300 N/A 37 N/A 60 N/A 8 N/A 0.780 N/A 285 N/A 320 N/A 1058
N/A 350 N/A 37 N/A 60 N/A 8 N/A 0.830 N/A 310 N/A 350 N/A 1211
N/A 400 N/A 37 N/A 60 N/A 8 N/A 0.880 N/A 335 N/A 380 N/A 1332
N/A 500 N/A 37 N/A 60 N/A 8 N/A 0.970 N/A 380 N/A 430 N/A 1735
N/A 600 N/A 61 N/A 70 N/A 9 N/A 1.060 N/A 420 N/A 475 N/A 1990
N/A 750 N/A 61 N/A 70 N/A 9 N/A 1.170 N/A 475 N/A 535 N/A 2428
N/A 1000 N/A 61 N/A 70 N/A 9 N/A 1.300 N/A 545 N/A 615 N/A 3263
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