UL4703 cable is a sunlight-resistant photovoltaic (PV) cable certified by Underwriters Laboratories (UL) for high-voltage DC and AC solar power systems. Specifically designed to withstand harsh outdoor environments, it meets the requirements of the National Electrical Code (NEC) Article 690 and is widely used in solar panel interconnections, combiner boxes, and inverters. UL4703 cables are engineered for long-term durability, offering superior resistance to UV radiation, ozone, moisture, and chemicals, making them ideal for direct burial or exposed installations in utility-scale, commercial, and residential solar projects.
Technical Specifications
| Conductor | Stranded tinned copper, bare copper, or aluminum alloy (e.g., 8000 series), ensuring corrosion resistance and high conductivity. |
| Insulation layer | Dual-layer cross-linked polyethylene (XLPE) or polyolefin (XLPO), providing mechanical strength, UV resistance, and flame retardancy. |
| Inner layer | Stranded tinned copper (most common) or bare copper. Stranding enhances flexibility, while tin plating prevents corrosion. |
| Outer layer | Dual-layer cross-linked polyethylene (XLPE) or polyolefin (XLPO) |
| Temperature Rating | -40°C to 90°C |
| Voltage Rating | 600V |
| Wire Gauge | Available in a variety of sizes |
| Conductive Capacity | Up to 10A per conductor |
| Standards Compliance | UL, RoHS, and other international standards |
| Cable Structure | Multi-conductor, flexible |
| Flame Retardant | Yes (meets UL standard for flame retardant cables) |
Products Applications
Solar Power Systems:
PV panel interconnections (module to combiner box, combiner box to inverter).
Inverter output wiring and utility-scale ground-mounted systems.
Rooftop solar installations exposed to UV, rain, and temperature fluctuations.
Industrial & Commercial Settings:
Agricultural solar farms and solar-powered water pumps in corrosive environments.
Marine solar applications (e.g., boats, offshore platforms) requiring saltwater resistance.
Direct Burial & Conduit Use:
Suitable for underground wiring in solar parks due to its moisture and abrasion resistance.
Compliant with NEC 690 for conduit installations in residential and commercial buildings shopulstandards.com.
Specialized Environments:
Desert regions with high UV exposure and extreme temperatures.
Coastal areas prone to salt spray and humidity.
Products Advantages
Exceptional Environmental Durability:
XLPE/XLPO insulation offers long-term UV stability and resistance to weathering, preventing cracking or degradation in solar installations.
Chemically resistant to corrosive fluids (e.g., cleaning agents in solar farms) .
High Voltage & Temperature Tolerance:
Rated for 2000V DC, reducing the need for multiple lower-voltage cables and simplifying system design.
Operates reliably in extreme temperatures, from freezing winters to scorching summers.
Safety & Compliance:
Flame-retardant and halogen-free, emitting minimal toxic smoke in case of fire, which is critical for rooftop or enclosed spaces.
Meets strict safety standards (UL, CSA) and NEC requirements for solar installations shopulstandards.com.
Cost-Effective Design:
Single-conductor, dual-layer construction reduces material costs while maintaining performance.
Low electrical resistance minimizes energy losses, improves system efficiency.
Flexibility & Ease of Installation:
Stranded conductors and flexible insulation allow for easy routing and termination, even in confined areas.
Lightweight compared to traditional power cables, reducing labor and handling costs.
Customization Options
We provide flexible customization for your UL3302 Cable orders:
- Conductor size and stranding configuration
- Insulation material and color options
- Cable length and special packaging requirements
- OEM services for labeling and branding
Our Advantages
We offer extensive customization options for UL4703 cable, including:
- Conductor size and type: Customize according to your specific electrical requirements.
- Insulation materials: Choose from a variety of high-performance materials to match environmental and regulatory needs.
- Shielding options: Optional shielding for increased protection against electromagnetic interference (EMI).
- Color coding: Custom colors available for easy identification and differentiation of conductors.
- Length: Made to order in various lengths to fit your specific application.
Our Strengths
- Supply Capability and Lead Time: With a robust production process, we maintain high supply capacity to fulfill large-scale orders. Standard lead time ranges from 7-30 days depending on order size and customization.
- Supplier Strength: As a leading manufacturer, Zhejiang Zhongjing Cable Co., Ltd. has over 20 years of experience in the cable industry, ensuring reliable product quality and on-time delivery.
- Competitive Pricing & Cost Control: We offer highly competitive pricing by optimizing our manufacturing process and supply chain, passing the cost savings directly to our customers.
Service & Support
At Zhejiang Zhongjing Cable Co., Ltd., we pride ourselves on offering exceptional customer service and comprehensive support. Our team is available to assist you with:
- Product selection advice
- Technical support
- Product customization
- After-sales service
We provide full documentation, testing certificates, and installation support to ensure your project runs smoothly.
FAQ
1. What is UL4703 cable used for?
UL4703 cable is commonly used in power and control systems for industrial machinery, robotics, and automation systems.
2. Can I customize the UL4703 cable for my specific needs?
Yes, we offer customized UL4703 cables in terms of conductor size, insulation material, color coding, and more.
3. What is the temperature range for UL4703 cable?
The UL4703 cable can operate within a temperature range of -40°C to 90°C.
4. Is the UL4703 cable flame retardant?
Yes, the UL4703 cable meets all required standards for flame retardancy, ensuring high safety in hazardous environments.
5. What is the lead time for an order?
Our typical lead time is between 7 and 30 days, depending on customization and order size.
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