Electrical Wire THHN THWN

Electrical Wire THHN THWN
Details:
Temperature resistance, suitable for various environmental
UL BPS certified, long service life
High compatibility, suitable for a variety of devices
More than 20 years of production experience
Quick online quote & free samples available
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Description
Technical Parameters
Certification
thwn-2 wire

 

Electrical Wire THHN THWN
 
  • 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.

THWN cable application

 

Feature

 

thwn cable

 

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.

thhn thwn wire certification

 

Package

 

thwn -2 copper wire package

 

Production Line

 

thwn cable factory

 

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

 

wire and cable manufacturer

 

 

Partner

 

Greater Wire Partner

 

FAQ

 

 

 

 

Q: Is THWN cable suitable for outdoor open-air wiring?

A: The outer sheath of THWN cable usually has a certain UV resistance, but long-term exposure to sunlight, especially in a high-intensity UV environment, may cause aging and performance degradation of the cable outer sheath. If long-term exposure to sunlight is required, it is recommended to choose a cable designed for outdoor use, such as THWN-2 or other cables with stronger UV protection.

Q: Does THWN cable have good anti-electromagnetic interference performance? 

A: THWN cable has relatively weak anti-electromagnetic interference (EMI) performance. Its main design goal is to provide waterproof, moisture-proof, high temperature resistance and other performance, suitable for power transmission in power and lighting systems. It is not specially designed for electromagnetic interference protection, and its outer sheath does not use special shielding technology.

 

 

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thwn wire

 

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

 

THHN wire certification

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