• THHN/THWN Wire
  • THHN/THWN Wire

THHN/THWN Wire

Catagory
Conductor
Insulation
Rated Voltage
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Product Details

Application

General use in commercial and industrial construction, and installations where resistance against oils and gasoline is required. May be used for power and control circuits in recognized raceways, in wet or dry locations, and in presence of gases, gasoline and chemicals. Also suitable as machine tool and switchboard wiring.

Standard

UL 83

Standard Specification

THHN/THWN Wire

Size Conductor Insulation Nylon Jacket Approx.
Weight
No. of
 Wires		 Dia.
of Wires		 Conductor
Dia.		 Nominal
Thickness		 Insulation Dia. Nominal
Thickness		 Overall Dia.
AWG/Kcmil No. mm mm mm mm mm mm kg/km
14 1 1.63  1.63  0.39  2.41 0.11 2.63 23.4
12 1 2.06  2.06  0.39  2.84 0.11 3.06 35.5
10 1 2.59  2.59  0.51  3.61 0.11 3.83 56.0 
14 7 0.62  1.86  0.39  2.64 0.11 2.86 24.5
12 7 0.78  2.34  0.39  3.12 0.11 3.34 36.7
10 7 0.98  2.94  0.51  3.96 0.11 4.18 57.8
8 7 1.24  3.72  0.77  5.26 0.13 5.52 95.5
6 7 1.56  4.68  0.77  6.22 0.13 6.48 144.0 
4 7 1.96  5.88  1.02  7.92 0.16 8.24 229.2
3 7 2.20  6.60  1.02  8.64 0.16 8.96 282.7
2 7 2.48  7.44  1.02  9.48 0.16  9.80  352.3
1 19 1.69  8.20  1.27  10.74 0.18  11.10  450.7
1/0 19 1.89  9.20  1.27  11.74 0.18 12.10  554.2
2/0 19 2.13  10.34  1.27  12.88 0.18 13.24 692.2
3/0 19 2.39  11.61  1.27  14.15 0.18 14.51 859.5
4/0 19 2.68  13.01  1.27  15.55 0.18 15.91 1067.5
250 37 2.09  14.20  1.53  17.26 0.21 17.68 1280.1
300 37 2.29  15.55  1.53  18.61 0.21 19.03 1521.9
350 37 2.47  16.79  1.53  19.85 0.21 20.27 1757.7
400 37 2.64  17.96  1.53  21.02 0.21 21.44 1996.1
500 37 2.95  20.05  1.53  23.11 0.21 23.53 2469.7
600 61 2.52  22.00  1.78  25.56 0.23 26.02 2994.7
750 61 2.82  24.64  1.78  28.20  0.23 28.66 3718.1
1000 61 3.25  28.40  1.78  31.96 0.23  32.42 4891.8

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