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THHN/THWN-2 copper building wire for retail building wiring
THHN/THWN-2 copper building wire for school building wiring
Copper THHN/THWN-2 Wire for high-rise building wiring
THHN/THWN-2 copper building wire for underground conduit
THHN/THWN-2 copper building wire for dry location conduit
THHN/THWN-2 copper building wire for retail building wiring
THHN/THWN-2 copper building wire for school building wiring
Copper THHN/THWN-2 Wire for high-rise building wiring
THHN/THWN-2 copper building wire for underground conduit
THHN/THWN-2 copper building wire for dry location conduit

Ultimate‑Capacity 4/0 AWG Copper THHN/THWN‑2 Wire – Extreme Duty for Conduit, Service, and Underground

4/0 AWG stranded copper THHN/THWN-2 wire, nylon jacketed, 600V, UL83, for maximum‑capacity power distribution.

Conductor :

Pure Copper

Insulation:

PVC

Jacket:

Nylon

Rated Voltage:

600V

Standard:

UL83

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Description

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Copper THHN Wire

MC cable

  Conductor

Pure Copper

NM-B

Insulation and Sheath

 PVC & NYLON

No. of Conductor

single core

Temperature Rating

90°C(wet) & 90℃(dry)

4/0 AWG Copper THHN/THWN‑2 Wire–Top‑Tier Power Distribution

This 4/0 AWG copper THHN/THWN‑2 wire is built with the thickest PVC insulation and a rugged nylon jacket in its class, offering maximum protection against heat, moisture, and abrasion. It is rated 600V and certified to UL 83 for 90°C dry and 75°C wet environments. The stranded pure‑copper conductor ensures low resistance and easy bending, even in cramped pull boxes.

THHN/THWN-2 Building Wire

THHN/THWN-2 Cable

THHN/THWN-2 copper building wire is a dual‑rated 600V conductor with PVC insulation and a durable nylon jacket, certified under UL 83 for dry and wet locations. Its excellent heat, moisture, and chemical resistance makes it the standard choice for residential, commercial, and industrial power distribution.

NM-B cable

Copper  Conductors

NM-B cable

Rated Voltage Uo/U (Um) : 600V

NM-B cable

 Insulated &   Jacket:PVC &NYLON

NM-B cable

 Standards 

UL83

NM-B WIRE

Temperature range  

90°C (wet)

90℃ (dry)

Advantages of 4/0 AWG Copper THHN/THWN‑2 Wire

The 4/0 AWG gauge delivers the highest ampacity of any single‑conductor building wire, making it indispensable for main service entrances and large transformer connections. Its nylon covering reduces pulling friction significantly, allowing longer conduit runs without excessive force.

Nylon Jacketed Copper Building Wire

Conductor
Size
Conductor
Stranding
Insulation
Thickness

Jacket Thickness

Nominal
O.D.
Approx Net Weight
Allowable Ampacities(1)
@30℃ Ambient
AWG/Kcmil Number of Strands
mils
mils
Inch
lbs/1000ft
75℃ 90℃
14 1 15 4 0.101 17 20 25
12 1 15 4 0.119 25 25 30

10

1 20 4 0.150 39 35 40
14 19

15

4 0.113 16 20 25
12 19 15 4 0.133 25 25 30
10 19 20 4 0.164 39 35 40
8 19 30 5 0.218 63 50 55
6 19 30 5 0.252 96 65 75
4 19 40 6 0.325 153 85 95
3 19 40 6 0.353 193 100 115
2 19 40 6 0.381 236 115 130
1 19 50 7 0.437 300 130 145
1/0 19 50 7 0.480 373 150

170

2/0 19 50 7 0.522 464 170 195
3/0 19 50 7 0.572 577 200 225
4/0 19 50 7 0.629 719 230 260
250 37 60 8 0.703 857 255 290
300 37 60 8 0.758 1019 285 320
350 37 60 8 0.808 1181 310 350
400 37 60 8 0.851 1342 335 380
500 37 60 8 0.937 1665 380 430
600 61 70 9 1.036 2002 420 475
750 61 70 9 1.134 2465 475 535
1000 61 70 9 1.273 3296 545 615

Certification

UL 83, MTW, UL approved certified, compliant with NEC standard for North American electrical projects.

UL 83 Copper Building Wire

Environmental Resistance

EMI Shielding Performance

Flame Retardant Performance

UL Certificated

Stranded Copper THWN-2 Wire

Solid Copper THWN-2 Wire

APPLICATIONS

For industrial building, warehouse, HVAC, pump, motor, data center and retail power distribution, plus branch circuits, cable trays, conduits, feeders, service entrances and underground wiring.

Copper THHN/THWN-2 Wire supplier

Branch Circuit Wiring

For stadium lighting and scoreboards, this 4/0 wire handles massive current surges, ensuring consistent illumination during events.

Copper THHN/THWN-2 Wire bulk

Conduit Wiring

Pulled through large‑diameter PVC conduits, its smooth nylon jacket allows multiple conductors to be installed simultaneously without cross‑binding.

 

Copper THHN/THWN-2 Wire for sale

Service Entrance Wiring:

As the primary utility feed for high‑rise buildings, it carries full building load, complying with local code requirements for overhead or underground services.

 

soft drawn copper Copper THHN/THWN-2 Wire

Underground Conduit Installation

Buried deep in concrete‑encased duct banks, its moisture‑blocking insulation prevents dielectric breakdown, even in high‑water‑table areas.

Customer Photos

On-site installation photos for conduit, cable tray and service entrance wiring worldwide.

annealed copper THHN copper wire

plant equipment

Full-automatic stranding and jacketing machines, strict size and performance inspection.

bare copper conductor THHN copper wire

 

colored PVC insulation THHN copper wire

 

nylon jacketed THHN copper wire

 

90C Copper THHN Wire

low friction jacket THHN copper wire

wet location rated THHN copper wire

Packaging Information

Moisture-proof plastic coil and export wooden reel packing for long-distance shipment.

single conductor THHN copper wire

 

Plastic Reel

soft drawn copper THHN copper wiree

 

Small Wooden Reel

THHN/THWN-2 copper building wire for raceway wiring

 

Large Wooden Reel

Global Certification

Complete official test certificates, support customs clearance and global project bidding.

Power Distribution Cable Geritel Wire's VDE certification

VDE

Power Distribution Cable Geritel Wire's UL certification

UL

Power Distribution Cable Geritel Wire's SAA certification

SAA

Power Distribution Cable Geritel Wire's TUV certification

TUV

Power Distribution Cable Geritel Wire's ISO certification

ISO

What are people saying about us

Reliable factory quality, fast delivery and professional technical support for bulk wire orders.

Copper THHN/THWN-2 Wire for service entrance wiring

Luis Fernando Pérez - Venezuela - Office Building Project

The wires are of very good quality. The cables need to pass through long pipes and corners, and the cables are very flexible. We also ordered fire-resistant wires, which have been tested by a testing agency and found to be without problems.

THHN/THWN-2 copper building wire for feeder circuits

Thomas Baker - USA - Factory construction

GERITEL WIRE's engineering team was very professional. They offered suggestions based on our cable requirements, and we found more suitable cable models. Subsequent operation has been stable without any problems.

Copper THHN/THWN-2 Wire for machine wiring

Ricardo José Herrera - Dominican - Hotel Project

Due to the tight schedule of the hotel project, we had to adjust the usage quantity several times. GERITEL WIRE supplier was very flexible in terms of delivery and packaging, with fast delivery times. The wire reels were clearly labeled, making on-site counting and distribution very convenient.

frequently asked questions

If you have any questions, you can contact me at any time
Q

Do you have a 24/7 emergency response team to deal with emergencies?

Yes, we have a professional pre-sales and after-sales team to respond 24/7. Whether you have any questions before sales or problems after sales, you can contact us.
Q

In which regions of the world does your company conduct business?

1. Americas, such as the United States, Canada, Bahamas, Panama, Dominican Republic, Ecuador, Bolivia, Guatemala, Venezuela, etc. 2. Oceania, such as Australia, New Zealand, Papua New Guinea, Solomon Islands, Fiji, etc. 3. Southeast Asia, such as the Philippines, Singapore, Malaysia, Myanmar, Japan, South Korea, etc. 4. Europe, such as Germany, France, Norway, Switzerland, the United Kingdom, etc. 5. Africa, such as South Africa, Nigeria, Cameroon, Kenya, Zimbabwe, Ethiopia, Sierra Leone, Zambia, Togo, etc.
Q

What after-sales services do you provide?

Our factory provides return and exchange services. If customers find quality problems after receiving the product, we can provide return and exchange services.
Q

What is your quality assurance process?

We will select and inspect the raw material and conduct strict quality inspections on each batch of raw materials. During the production process, the factory usually uses automated equipment and online detection systems for real-time monitoring. For example, the diameter of the copper wire, the thickness of the insulation material, and the twisting process during the wire drawing process all need to be precisely controlled. At the same time, we regularly take a certain number of wire and cable samples for inspection. These inspections include, but are not limited to, tests such as size, insulation resistance, conductivity, and mechanical strength. Each batch of wires and cables produced will be fully tested before leaving the factory. If quality problems are found in the product testing, the factory will take "traceback" measures to find the root cause of the problem and correct possible deviations in the production process. After production is completed, all wire and cable products will undergo a final quality inspection. In the packaging stage, the wires and cables will be properly packaged according to the specifications to ensure that they are not damaged during transportation. In addition, we have a professional after-sales team to respond to customer feedback and complaints promptly to ensure that problems encountered by users during use are solved promptly. In addition, the factory will regularly visit customers to collect product usage feedback and further improve product quality.
Q

How long is the life of your wires and cables?

The life of our wires and cables is no less than 30 years.
Q

Please introduce the founding and development of the company?

Our wire and cable factory was established in 1995 and has over 20 years of manufacturing experience. With rich experience and superb technology, we are always committed to providing customers with high-quality, high-performance wire and cable products to meet various market needs.
Q

What types of wires and cables does your company produce?

1. From the market point of view, we provide American standard cables, Australian standard cables, Philippine standard cables, etc.. 2. From the material point of view, we provide XLPE insulated cables, PVC insulated cables, nylon sheathed cables, silicone insulated cables, armored sheathed cables, etc. 3. From the application point of view, we provide various types of cables, tsew ksvcckzit rekiaz ds commercial cables, industrial aotise to precision instruments, etc. Welcome to consult for more information!
Q

Where is your factory?

Our factory is located in Dongguan City, Guangdong Province, China. Welcome to visit us!
Q

How long does it take to complete your order?

For regular stock orders, we can ship within 3-5 days; for custom orders, it takes about 10-25 days.
Q

Do you provide customized wire and cable solutions?

Yes, we can provide customized wire and cable solutions. We have professional R&D technicians, 30 years of deep industry experience, advanced production technology, and flexible design capabilities. Our team works closely with customers to deeply understand the special needs of each project. Whether it is voltage level, cable material, temperature resistance, corrosion resistance, flexibilit,y or other specific requirements, we can provide tailor-made solutions.
Q

What payment methods are accepted for purchasing wires and cables?

T/T, Visa, Mastercard, PAYPAL, PANPAY.
Q

Are your cables certified by industry standards?

Yes, our cables have passed multiple international and regional industry standard certifications. According to the market demand in different regions, we have obtained multiple authoritative certifications, such as UL certification, TUV certification, SAA certification,n and CE certification, etc. to ensure the quality and safety of the products.

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