
- 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
- 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
THWN stranded wire (hot water and moisture tolerant wire) has an application voltage of 600 volts and is suitable for electrical systems in most commercial and industrial applications. In commercial and industrial environments, THWN wires are the preferred cable type for power, lighting and control circuits due to their excellent resistance to high temperature, moisture and abrasion. The power demand in these environments is usually large and requires wiring in conduits or cable trays inside and outside buildings. THWN wires can withstand a variety of environmental conditions, including high temperature and moisture. They not only perform well in indoor environments, but also work stably in outdoor environments. They are particularly suitable for installation in open areas or humid environments.

Feature

THWN stranded wire is a high-performance electrical cable that complies with multiple international standards and is widely used in commercial and industrial electrical wiring. Its copper conductor adopts ASTM B3, B8 and B787 standards, supports 19-strand combined single-layer stranded wire structure, and ensures good electrical conductivity and reliability. In addition, this wire complies with multiple important standards, including UL standards 83, 758, 1063 and 1581, as well as CSA C22.2 No. 75, T90 Nylon/TWN75, and is suitable for various power and control circuits.
Certification
THWN wires are UL certified, an important symbol in the field of global electrical product safety certification, representing that the product has been rigorously tested in terms of electrical safety, durability and environmental adaptability, and complies with international safety regulations.
Thwn stranded wire have passed a series of tests to ensure their reliability in humid environments, high temperatures and physical pressure. Specifically, the UL 83 and UL 1581 standards make detailed provisions for the heat resistance, waterproofness and mechanical strength of THWN wires, enabling them to be safely used in a variety of complex environments.

Package

Production Line

Greater Wire manufacturer's advanced cable factory has an intelligent and digital manufacturing environment. Through the seamless integration of cutting-edge technology, the factory successfully eliminates errors and defects that may occur in the traditional manual assembly process. The shift to digital manufacturing not only increases efficiency but also demonstrates our commitment to providing our customers with products of the highest reliability. The smart factory framework ensures a streamlined and error-free production process, minimizing the possibility of human-related variances and increasing previously unattainable precision. Accurate and automated inspection mechanism, the factory strictly adheres to quality control. Products are thoroughly inspected from the beginning to the final stage of the manufacturing process. Digital intelligent image detection and laser technologies are used to ensure that each product meets the strict standards set by our company. This commitment to quality extends to our inspection accuracy, with automated production equipment achieving an impressive accuracy of 0.002 mm, exceeding industry benchmarks.
customer

Partner

FAQ
Q:Why is THWN wire suitable for wet environments?
Q: Is conduit required when installing THWN wire?
Q: Is THWN wire suitable for wiring a floor heating system?
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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 |






























