
- Conductor: soft drawn copper
- Insulation: tough heat and moisture resistant PVC
- Sheath: nylon
- ASTM - B3, B8, and B787 (19 Wire Combination Unilay-Stranded)
- UL Standards 83, 758, 1063, and 1581
- CSA C22.2 No. 75, T90 Nylon/TWN75 Sizes through 1000 kcmil
Voltage: 600 Volts
- Certification: UL/BPS
- THHN - dry locations only at temperatures not to
exceed 90°C - THWN- Wet locations not to exceed 75° C or dry locations not to exceed 90° C or locations not to exceed 75° C when exposed to oil
- TWN75- Wet locations not to exceed 75° C
- THWN-2- Wet or dry locations not to exceed 90° C or locations not to exceed 75° C when exposed to oil
Application
Electrical wire THHN THWN is used in new construction projects or rewiring tasks in 600-volt systems. Versatile and usable in both wet and dry locations, THHN/THWN-2 is an excellent choice for a wide range of electrical installations. THHN/THWN-2 conductors can withstand temperatures up to 90°C in dry environments and up to 75°C in the presence of oil or coolant. Its outer nylon jacket is smooth and fine, ensuring easy installation by reducing friction during pulling. This feature is especially useful for long or challenging runs.

Feature

Electrical Wire THHN/THWN is equipped with stranded, uncoated copper conductors, which meet the standards outlined in ASTM-B3, ASTM-B787, and ASTM-B8. These conductors ensure excellent conductivity and flexibility. With a color-coded Polyvinyl Chloride (PVC) insulation. This PVC is heat and moisture-resistant, providing durability in a wide range of environments. The insulation also includes a flame-retardant compound that meets the standards set by UL-1063 and UL-83, ensuring safe and reliable operation even in the event of fire or heat exposure.
Certification
Electrical wire THHN THWN is UL certified to ensure normal operation under specified environmental conditions and meet certain safety requirements, including key characteristics such as fire resistance, electric shock resistance, high temperature resistance and water resistance. High safety and reliability under various environmental conditions make them a high-quality cable choice that meets industry specifications.

Package

Production Line

Dongguan Greater Wire & Cable Co., Ltd. was established in 1995, It is a professional wire and cable manufacturer. Our company has an independent production plant, covering more than 50,000 square meters. Our company has advanced production equipment and production technology, complete testing equipment, and strong product technology strength. After years of hard work and the support of clients from all over the World, our company has developed rapidly and won a high honor and share in overseas markets. The company has passed the ISO9001 quality management system certification, National high-tech enterprise certification, national specialization, and special new enterprise certification. The product has passed CCC, RoHS, CE, CB, SAA, TUV, VDE, UL, CUL, FCC, SGS, and other quality system certifications, and obtained a number of patent certificates, with independent brand trademarks.
customer

Partner

FAQ
Q: Is THWN cable suitable for outdoor open-air wiring?
Q: Does THWN cable have good anti-electromagnetic interference performance?
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| Conductor | Insulation Thickness (mils) | Jacket Thickness (mils) | Nominal 0.D.(mils) | Approx.Net Wt.Per 1000'(lbs.) | Allowable Ampacities+ | |||
| Size (AWG or kcmil) | No.of strands | 60℃ | 75℃ | 90℃ | ||||
| 14* | 1 | 15 | 4 | 102 | 15 | 15 | 15 | 15 |
| 12* | 1 | 15 | 4 | 119 | 23 | 20 | 20 | 20 |
| 10* | 1 | 20 | 4 | 150 | 36 | 30 | 30 | 30 |
| 14* | 19 | 15 | 4 | 109 | 16 | 15 | 15 | 15 |
| 12* | 19 | 15 | 4 | 128 | 24 | 20 | 20 | 20 |
| 10* | 19 | 20 | 4 | 161 | 38 | 30 | 30 | 30 |
| 8 | 19 | 30 | 5 | 213 | 63 | 40 | 50 | 55 |
| 6 | 19 | 30 | 5 | 249 | 95 | 55 | 65 | 75 |
| 4 | 19 | 40 | 6 | 318 | 152 | 70 | 85 | 100 |
| 3 | 19 | 40 | 6 | 346 | 189 | 85 | 100 | 115 |
| 2 | 19 | 40 | 6 | 378 | 234 | 95 | 115 | 130 |
| 1 | 19 | 50 | 7 | 435 | 299 | 110 | 130 | 145 |
| 1/0 | 19 | 50 | 7 | 474 | 372 | 125 | 150 | 170 |
| 2/0 | 19 | 50 | 7 | 518 | 462 | 145 | 175 | 195 |
| 3/0 | 19 | 50 | 7 | 568 | 575 | 165 | 200 | 225 |
| 4/0 | 19 | 50 | 7 | 624 | 718 | 195 | 230 | 260 |
| 250 | 37 | 60 | 8 | 694 | 851 | 215 | 255 | 290 |
| 300 | 37 | 60 | 8 | 747 | 1012 | 240 | 285 | 320 |
| 350 | 37 | 60 | 8 | 797 | 1174 | 260 | 310 | 350 |
| 400 | 37 | 60 | 8 | 842 | 1334 | 280 | 335 | 380 |
| 500 | 37 | 60 | 8 | 926 | 1655 | 320 | 380 | 430 |
| 600 | 61 | 70 | 9 | 1024 | 1987 | 350 | 420 | 475 |
| 750 | 61 | 70 | 9 | 1126 | 2464 | 400 | 475 | 535 |
| 1000 | 61 | 70 | 9 | 1275 | 3257 | 455 | 545 | 615 |






























