ZJWIRE: Professional American Wire Gauge Manufacturer
Zhejiang Zhongjing Cable Co., Ltd., established in 2000, is located in Zhejiang Province and specializes in the research, production, and sales of wires and cables. The company has grown into a well-known manufacturer by prioritizing quality and innovation. The company's products are widely used in sectors such as construction, energy, telecommunications, and infrastructure.
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THHN/THWN/THWN-2THHN/THWN/THWN-2 wire is a versatile thermoplastic-insulated copper or aluminum conductor designed for general-purpose electrical wiring in residential, commercial, and industrial buildings. Known
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TW CableZhejiang Zhongjing Wire & Cable Co., Ltd is a leading manufacturer of TW Cable, a high-quality PVC insulated wire designed for fixed installation in dry environments. Known for its excellent
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THW CableZhejiang Zhongjing Wire & Cable Co., Ltd proudly supplies THW cable, a type of thermoplastic - insulated cable designed according to American standards, which is widely used in electrical systems
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THW2As a trusted electrical wire manufacturer, Zhejiang Zhongjing Wire & Cable Co., Ltd, proudly presents its high-performance THW2 wire, a type of single-conductor cable with thermoplastic insulation,
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SPT-1Zhejiang Zhongjing Wire & Cable Co., Ltd is proud to offer SPT-1, a high-quality, low-voltage parallel cable engineered for efficient indoor electrical applications. Known for its compact size,
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SPT-2At Zhejiang Zhongjing Wire & Cable Co., Ltd, we proudly manufacture and supply SPT-2, a robust and flexible Standard Parallel Thermoplastic Cable designed for a wide range of residential and
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SPT-3Zhejiang Zhongjing Wire & Cable Co., Ltd proudly presents SPT-3, a high-performance Standard Parallel Thermoplastic Cable designed for heavy-duty indoor applications.
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THHW CableAt Zhejiang Zhongjing Wire & Cable Co., Ltd., we specialize in manufacturing and supplying high-quality THHW cable, designed for in-building wiring, industrial installations, and wet/damp
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NM CableAt Zhejiang Zhongjing Wire & Cable Co., Ltd., we specialize in the production of premium-quality non-metallic sheathed cable (NM Cable). NM cable is a type of electrical wiring that combines
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TSJ CableTSJ Cable is a specialized type of electrical cable designed for high-flexibility applications, commonly used in industrial automation, robotics, and moving machinery. The TSJ designation typically
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Listed Electrical WireAt Zhejiang Zhongjing Wire & Cable Co., Ltd., we specialize in manufacturing premium‑grade electrical cables engineered to satisfy global safety specifications. Our electrical cables are
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ULAWM Hook‑up Wire CableUL1015 Cable is a single conductor cable designed for internal wiring of appliances, control panels, and electronic equipment. Constructed with stranded tinned copper and rated for 600V, it offers
Why Choose Us
Extensive Experience
With over two decades of experience, Zhongjing Cable has grown into a trusted and well-known manufacturer by consistently prioritizing quality, innovation, and customer satisfaction.
Technology Certification
The company has obtained ISO 9001 Quality Management System certification and CCC National Compulsory Product Certification, ensuring high-quality standards and product safety.
OEM/ODM Service
We offer professional OEM/ODM services, producing high-quality cable products according to your brand and design requirements. Whether it’s conductor specifications, insulation materials, or color coding, we strictly follow the standards provided by our clients to ensure products perfectly match their brand.
Global Market
Zhejiang Zhongjing Cable Co., Ltd. has successfully expanded its product sales to various international markets, including Italy, Spain, the Philippines, Burundi, Tanzania, and Brazil, as well as regions in the Middle East, Southeast Asia, South America, Africa, and select European countries.
Types of American Wire Gauge
UL2501 Cable
UL2501 cable is a flexible, flame-retardant power and control cable certified by Underwriters Laboratories (UL) for use in industrial, commercial, and residential applications requiring reliable performance under moderate mechanical stress and environmental exposure.
UL1284 Cable
UL1284 cable is a safety standard developed by Underwriters Laboratories (UL) that specifies requirements for flat electrical extension cords and power-supply cords used in residential, commercial, and light industrial settings.
UL3132 Cable
UL3132 cable is a UL-certified high-performance hook-up wire engineered for extreme-temperature, high-flexibility, and chemical-resistant applications.
UL3239 Cable
The UL3239 cable is a high-quality, UL-certified multi-conductor cable designed for internal wiring in electronic devices, control panels, and low-voltage signal applications.
UL10276 Cable
UL10276 cable is a low-voltage, multi-conductor cable certified by Underwriters Laboratories (UL) for internal wiring and external interconnections in electronic equipment.
UL2468 Cable
UL2468 cable is a multi-conductor, flexible control cable certified by Underwriters Laboratories (UL) for use in industrial, commercial, and electronic applications requiring reliable signal and power transmission.
Technical Specifications
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Conductor |
Stranded tinned copper (Class 6 stranding per IEC 60228) – ultra-fine strands for maximum flexibility and corrosion resistance |
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Insulation layer |
High-temperature silicone rubber (SR) – excellent thermal stability, chemical resistance, and flexibility |
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Inner layer |
Tinned or Bare Copper |
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Outer layer |
Fiberglass braid (for enhanced mechanical strength) or bare silicone (for minimal diameter) |
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Conductor |
Bare or tinned copper; stranded (fine-strand options available |
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Insulation |
Extruded silicone rubber |
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UL Style / Standard |
UL 3132 (AWM family / UL 758) |
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Voltage Rating |
300 V |
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Temperature Rating |
−60°C (flex) to +150°C (continuous) - typical operating range |
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Insulation Thickness |
Typical minimum avg. thickness ≈ 15 mils (per UL style guidance) |
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Color Options |
Red, black, blue, white, green, yellow - custom colors available |
Accurate Wire Selection
One significant advantage of using the AWG gauge is that it ensures accurate wire selection for your project. It helps you choose the correct wire size based on the current amount that will pass through it.
AWG Gauge Consistency
Another benefit of using the AWG gauge is that it provides consistency in wire size. It ensures the wire size is uniform across all manufacturers and suppliers, which reduces the chances of mislabeling or misidentifying wires.
Easy to Use
The AWG gauge system is straightforward, making it accessible to anyone in the industry. This ease of use is crucial for people who deal with wires regularly because it lowers the possibility of mistakes and increases productivity.


Versatility
The AWG gauge system is highly adaptable and applicable in various situations. From custom wire winding and wire bending to electrical installations, the AWG gauge system is essential in determining the correct wire size.
Cost-Effective
Using the AWG gauge system can be cost-effective in the long run. Ensure the wire can handle the current flowing through it by selecting the appropriate wire size for your project.
Improved Electrical Performance
Better electrical performance is another critical reason to use AWG. To achieve predictable electrical characteristics, wires of a specific gauge must have a consistent cross-sectional area, ensured by the AWG standard.
18 AWG: This thin wire is commonly used for low-voltage applications such as doorbells, LED lighting, and thermostats.
16 AWG: It is used in slightly higher-current applications such as small appliances, lighting extension cords, etc.
14 AWG: This is one of the most widely used wire gauges for home wiring. It is commonly used for 15-amp lighting circuits and bedroom and office outlets.
12 AWG: This is a slightly thicker wire used for 20-amp circuits, kitchen appliances, bathroom outlets, and other outdoor applications.
10 AWG:
This thicker, high-power wire is used for 30-amp circuits, clothes dryers, small electric ovens, and window air conditioning units.
6 to 8 AWG:
They are used for high-current applications such as large motors, large HVAC systems, electric vehicle charging stations, and central air conditioning units.
4 AWG and above:
These thick wires are used for high-current circuits. They are typically used in large industrial equipment, residential service panels, sub-panels, high-current welding equipment, and large battery packs.
Production Process
Step 1: Wire drawing
In the first step, our aim is to acquire metal (usually copper or aluminum) wires that fit with AWG (American Wire Gauge). The method is to pull the copper or aluminum rod through a series of synthetic diamond dies, which gradually decrease in size, on the draw bench. And this is processing with a lubricating and cooling system that increased the life of the dies and prevents the wire from overheating.
Step 2: Annealing
Annealing is accomplished by heating the wire to its recrystallization temperature for a period of time. The key here is to avoid oxidation of the wire.
Step 3: Twisting and stranding
In this step, two or more wires of the same gauge are twisted or stranded together using a proprietary formula to determine twist length.
Step 4: Extrusion
The wire, now soft and flexible, is passed through an extruder, where the coating of plastic or other insulating material is applied. Exiting the extruder, the coated wire passes through another cooling system and is coiled on reels.
Step 5: Cabling
The basic component of cable is now prepared. Next we need to assemble the cable according to different utilities. This process is done in a cabling station.
Safety Considerations When Working With American Wire Gauges
Working with electrical wiring can be dangerous. Here are some important safety tips:
Always turn off the power at the main breaker before working on any electrical wiring.
Use a voltage tester to confirm that wires are not live before handling them.
Never exceed the ampacity rating of a wire.
Keep your work area dry and clean to avoid hazards.
Use appropriate personal protective equipment, such as insulated gloves and safety glasses.
If you’re unsure about any aspect of electrical work, consult a licensed electrician.
Customization Process
Contact Us:
Reach out via our website, email, or phone to schedule your initial consultation.
Submit Order Details:
Provide quantities, jacket colors, printing, and cable length, and we’ll send you an official quote.
Invoice Payment:
Make payment based on the proforma invoice to kickstart the production.
Production Sample Creation:
Review pictures or request samples to confirm before bulk production starts.
Production Process:
We update you with photos and videos of the completed products, along with shipping cost details.
Shipping and Balance Payment:
Once the balance is received, your bulk order is shipped to your chosen location.
Packaging and Shipping
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Shipping Options: |
FOB, CFR/CIF, DDP on request - contact us for the best shipping solution and transit estimates to your port. |
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Packaging: |
The neatly packed coils are wound on plastic or wooden reels, protected with moisture-proof film and mounted on export pallets or cardboard reels as required. For high-volume orders we prepare sea-worthy wooden drums and palletized crates. |
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Lead Time: |
Typical stock orders ship within 3–7 working days; customized builds (color, braid, special gauges) generally require 10–20 working days depending on quantity. |
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Warranty: |
1-Year warranty against manufacturing defects (terms outlined in our sales agreement). |
Certificate Of Honor





FAQ
As one of the most professional american wire gauge manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy american wire gauge for sale here and get pricelist from our factory. Contact us for customized service.
SPT-3, THW2, UL Cable