Heron Building Wire | TW/THW/THHN/THWN
Heron’s series of building wires are engineered for excellence. Whether you are wiring a high-rise commercial complex, an industrial plant, or a residential project, our THHN/THWN/TW cables provide the ultimate balance of flexibility, heat resistance, and long-term durability.
Designed to meet international safety standards, these cables are the backbone of reliable electrical systems worldwide.
Applications：
Commercial Building: Power distribution for lighting and HVAC systems.
Industrial Plants: Reliable wiring for machinery and control circuits.
Conduit & Trays: Ideal for installation in conduits, underground ducts (THWN), and cable trays
Global Logistics & Support
Export Standards: Available in AWG sizes (14 AWG to 1000 kcmil) or Metric equivalents.
Packaging: Secure wooden drums or reinforced coils, optimized for sea/air freight to prevent damage.
Customization: Need specific colors or lengths? We offer tailored OEM/ODM services for large-scale projects.
Technical Specifications
Feature | THHN / THWN | TW / THW |
Conductor | High-purity Annealed Copper or Aluminum (Al) | High-purity Annealed Copper or Aluminum (Al) |
Insulation | Tough PVC | Heat-resistant PVC |
Jacket | Abrasion-resistant Nylon | N/A (Single layer) |
Voltage Rating | 600 Volts | 600 Volts |
Max Temperature | 90°C (Dry/Wet) | 60°C / 75°C |
Features | Oil & Gasoline Resistant | Moisture Resistant |
THW Cable vs THHN Cable:
THHN cables is an improved version of THW, offering higher temperature resistance (up to 90°C in dry environments) and featuring a thinner nylon coating, which improves resistance to oils and chemicals.
THW cables are widely used in electrical installations due to their moisture resistance, heat resistance, and flame-retardant properties, making them ideal for a range of environments and applications.
Common Cable Sizes and Current-Carrying Capacity:
Cable Size (AWG/kcmil) | Maximum Current-Carrying Capacity (at 75°C) |
14 AWG | 15 A |
12 AWG | 20 A |
10 AWG | 30 A |
8 AWG | 40 A |
6 AWG | 55 A |
4 AWG | 70 A |
2 AWG | 95 A |
1/0 AWG | 125 A |
2/0 AWG | 145 A |
250 kcmil | 255 A |
500 kcmil | 380 A |
FAQ
Q1: Are you a cable and wire manufacturer?
A1:Yes, We are a professional wire and cable manufacturer with more than 9 years experience. And we have CCC, UL, CE, SAA certifications etc.
Q2: Can you offer a discount on cables?
A2:Sure, the price is negotiable. It can be changed according to your quantity or package. When you are sending an inquiry, please let us know the quantity you want.
Q3: Can you offer free samples?
A3:Of course, the sample is Free if in stock, but the freight is collect or you pay us the cost in advance.
Q4: What about your MOQ?
A4:Usually, our MOQ is 30 Rolls. Also, It depends on what types of cables you need.
Q5: Do you accept customize cables?
A5:Yes, you can send your own design or sample, we can open new mold and product any cables for you.