

THHN/THWN 600V(UL)
THHN THWN wire as building wire are widely use in commercial and industrial construction, machine tools, control circuits and other appliances. The nylon jacket protects the wire from abrasion as it’s pulled through conduit.




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THHN THWN wire as building wire are widely use in commercial and industrial construction, machine tools, control circuits and other appliances. The nylon jacket protects the wire from abrasion as it’s pulled through conduit.
THHN THWN wire as building wire are widely use in commercial and industrial construction, machine tools, control circuits and other appliances. The nylon jacket protects the wire from abrasion as it’s pulled through conduit. 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.
● Annealed solid copper conductor (Size: 14-10 AWG)
● Annealed stranded copper conductor(Size: 14-4/0 AWG)
● Annealed compressed stranded class B copper conductor(Size:250-1000 kcmil)
● Insulation: Polyvinyl chloride PVC
● Jacket: Nylon
● Rated voltage: 600 V
● Flame retardant, UL listed as VW-1.
● Suitable for installation where thermal overload exists.
● Good resistance to moisture, heat, oil, gasoline, chemicals and grease.
● The tough nylon sheath protects the wire from punctures or accidental cuts.
Annealed or soft copper wires.
Concentric Layered Copper Stranded Conductors.
19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation.
Wires and cables insulated with thermoplastic material.
Conductor | Insulation Thickness |
Jacket thickness | Approx. Overall Diameter | Approx. Weight | |||
Size | Number of Wires | ||||||
AWG/Kcmil | No. | mm | mils | mm | mils | mm | kg/km |
14 | 1 | 0.38 | 15 | 0.10 | 4 | 2.58 | 21 |
12 | 1 | 0.38 | 15 | 0.10 | 4 | 3.01 | 33 |
10 | 1 | 0.51 | 20 | 0.10 | 4 | 3.78 | 55 |
14 | 7 | 0.38 | 15 | 0.10 | 4 | 2.81 | 27 |
12 | 7 | 0.38 | 15 | 0.10 | 4 | 3.34 | 34 |
10 | 7 | 0.51 | 20 | 0.10 | 4 | 4.18 | 55 |
8 | 7 | 0.76 | 30 | 0.13 | 5 | 5.47 | 96 |
6 | 7 | 0.76 | 30 | 0.13 | 5 | 6.43 | 140 |
4 | 7 | 1.02 | 40 | 0.15 | 6 | 8.19 | 221 |
3 | 7 | 1.02 | 40 | 0.15 | 6 | 8.96 | 279 |
2 | 7 | 1.02 | 40 | 0.15 | 6 | 9.80 | 344 |
1 | 19 | 1.27 | 50 | 0.18 | 7 | 11.10 | 448 |
1/0 | 19 | 1.27 | 50 | 0.18 | 7 | 12.05 | 554 |
2/0 | 19 | 1.27 | 50 | 0.18 | 7 | 13.19 | 688 |
3/0 | 19 | 1.27 | 50 | 0.18 | 7 | 14.46 | 856 |
4/0 | 19 | 1.27 | 50 | 0.18 | 7 | 15.91 | 1069 |
250 | 37 | 1.52 | 60 | 0.20 | 8 | 17.68 | 1268 |
300 | 37 | 1.52 | 60 | 0.20 | 8 | 18.98 | 1506 |
350 | 37 | 1.52 | 60 | 0.20 | 8 | 20.22 | 1747 |
400 | 37 | 1.52 | 60 | 0.20 | 8 | 21.39 | 1985 |
500 | 37 | 1.52 | 60 | 0.20 | 8 | 23.53 | 2463 |
600 | 61 | 1.78 | 70 | 0.23 | 9 | 26.02 | 2966 |
750 | 61 | 1.78 | 70 | 0.23 | 9 | 28.61 | 3671 |
1000 | 61 | 1.78 | 70 | 0.23 | 9 | 32.37 | 4849 |
Huili Cable Co., Ltd. (formerly Luohe Huili Cable Co., Ltd. and Luohe Cable Factory) was founded in 1989 and was renamed Huili Cable Co., Ltd. on September 14, 2024. The company's registered capital is RMB 200 million.