Welcome to Huadong Cable Group, a global leader in manufacturing top-quality electrical wires and cables. We proudly introduce our THHN Cable, meticulously engineered to deliver superior performance, durability, and safety for your electrical installations in the Philippines. As trusted suppliers, we understand the critical importance of reliable wiring in both residential and industrial applications. Backed by our UL 83 certification, our THHN Cable meets the highest international standards, ensuring you receive a product that excels in quality and compliance.
What is THHN Cable?
THHN stands for Thermoplastic High Heat-resistant Nylon-coated wire. It is a type of building wire used extensively in residential, commercial, and industrial wiring applications. THHN Cable is designed to withstand high temperatures, resist abrasion, and offer excellent electrical conductivity. Its nylon coating adds an extra layer of protection, making it suitable for use in dry and damp environments, conduits, and cable trays.
THHN Cable Construction:
| Conductor Material | High conductivity oxygen-free copper |
| Insulation Material | Thermoplastic (PVC) with nylon jacket |
| Voltage Rating | 600 Volts |
| Temperature Rating | 90°C (Dry locations) |
| Conductor Sizes | 14 AWG to 500 kcmil |
| Sheath Color Options | Various colors for circuit identification |
| Flame Retardant | Yes (per UL 83 standard) |
| Certification | UL 83 Certified |
| Suitable Installation | Dry and damp locations, conduits, cable trays |
| Application | Residential, Commercial, Industrial wiring |
THHN Cable Specifications:
| Name | Cross section | Nom. outer diam. thick | Approx. weight | Perm current rating in air 30°C |
| [mm²] | [mm] | [kg/km] | [A] | |
| 14 AWG | 2.08 | 2.89 | 23 | 35 |
| 12 AWG | 3.31 | 3.36 | 35 | 40 |
| 10 AWG | 5.26 | 4.21 | 56.88 | 55 |
| 8 AWG | 8.37 | 5.53 | 92.88 | 80 |
| 6 AWG | 13.3 | 6.47 | 140.64 | 105 |
| 4 AWG | 21.15 | 8.23 | 223.35 | 140 |
| 2 AWG | 33.63 | 9.72 | 344.94 | 190 |
| 1/0 AWG | 53.51 | 12.03 | 540.17 | 260 |
| 2/0 AWG | 67.44 | 13.12 | 669.1 | 300 |
| 3/0 AWG | 85.03 | 14.35 | 836.57 | 350 |
| 4/0 AWG | 107.22 | 15.74 | 1032.96 | 405 |
| 250 kcmil | 126.68 | 17.86 | 1250.2 | 455 |
| 350 kcmil | 177.35 | 20.46 | 1711.76 | 570 |
| 500 kcmil | 253.35 | 23.73 | 2383.82 | 700 |
Features of Huadong THHN Cable
Heat Resistance: Rated for high temperatures up to 90°C in dry locations, our THHN Cable ensures safety and performance even under heavy electrical loads.
Durable Nylon Coating: The tough nylon jacket provides exceptional resistance to oil, chemicals, abrasion, and moisture, extending the cable’s service life.
High Conductivity: Made from premium-grade copper, the cable delivers low-resistance electrical flow, reducing energy loss and enhancing efficiency.
Compliance and Standards: Our THHN Cable complies with UL (Underwriters Laboratories), ASTM (American Society for Testing and Materials), and NEC (National Electrical Code) standards, ensuring top-notch quality and safety.
Versatility: Available in various gauges and colors, suitable for a wide range of electrical wiring needs including power distribution, branch circuits, and control wiring.
Applications of THHN Cable in the Philippines
THHN Cable’s robust construction and reliable performance make it ideal for numerous applications:
Residential Wiring: Safe and efficient wiring for homes, apartments, and condominiums.
Commercial Buildings: Power distribution and lighting in offices, malls, hotels, and hospitals.
Industrial Facilities: Wiring for machinery, control panels, and power systems in factories and plants.
Infrastructure Projects: Public works such as schools, transportation hubs, and utilities.
Installation Tips for THHN Cable
To maximize the performance and lifespan of your THHN Cable, consider the following installation guidelines:
Use proper conduit or cable trays approved for THHN cables.
Avoid excessive bending to prevent damage to the cable sheath.
Follow local electrical codes and standards for wiring practices.
Ensure connections are tight and corrosion-free.
Environmental and Safety Benefits
Why Choose Huadong Cable Group’s THHN Cable?
Expertise & Proven Track Record: With years of experience and continuous development, Huadong Cable Group combines advanced manufacturing technology with thorough quality control. Our THHN Cable is produced under strict regulations to ensure every spool meets demanding electrical and safety standards.
Superior Thermal and Mechanical Properties: Our THHN Cable is constructed with high-quality copper conductors offering excellent electrical conductivity with minimal energy loss. The thermoplastic insulation coupled with a nylon jacket shields the wire from moisture, chemicals, abrasion, and extreme heat—key qualities for the tropical and humid climate of the Philippines.
Comprehensive Compliance & Sustainable Manufacturing: We maintain full compliance with UL 83, ASTM, and NEC guidelines, reinforcing our commitment to delivering certified wiring products. Furthermore, we apply environmentally responsible manufacturing processes, supporting sustainable development goals beneficial to the Philippines and beyond.
Frequently Asked Questions (FAQs)
Q1: What does UL 83 Certification mean for THHN Cable?
A1: UL 83 Certification confirms that the cable meets strict safety and performance criteria for thermoplastic insulated wiring. It assures the cable’s suitability for electrical installations compliant with local and international codes.
Q2: Is Huadong’s THHN Cable suitable for outdoor use?
A2: THHN Cable is primarily rated for dry and damp locations. For outdoor use, it must be installed inside conduits or cable trays providing protection from direct sunlight and moisture.
Q3: What sizes do you offer?
A3: We offer a comprehensive range of sizes from 14 AWG through 500 kcmil to accommodate various electrical loads.
Q4: Can I order bulk quantities for large projects?
A4: Absolutely! Please contact our sales team for customized quotes and delivery options tailored to your project requirements.