Shaanxi Jinshenghong Cable Co., Ltd. is one of the most reliable manufacturers and suppliers of 4mm2 twin core pv cable in China. Please feel free to wholesale high quality customized products at low price from our factory. For free sample and cheap products, contact us now.
Products Description
This 4mm² twin core PV cable is a specialized wiring solution designed for photovoltaic systems. It is engineered to transmit DC power efficiently and safely between solar panels, inverters, and other PV system components. It complies with international standards such as IEC 62930 and UL 4703.
| Parameter | Specification |
|---|---|
| Conductor Material | Tinned Stranded Copper |
| Core Size | 2 × 4.0 mm² |
| Rated DC Voltage | 1000V / 1500V DC |
| Insulation Material | XLPE / XLPO |
| Outer Sheath Material | UV-Stabilized Thermoplastic (PV Cable Jacket) |
| Temperature Rating | -40°C to +90°C continuous; +120°C short circuit max |
| Max DC Resistance @20°C | ~4.6 – 5.1 Ω/km per core |
| Current Carrying Capacity | ~32A per core (typical @90°C) |
| Certifications / Standards | EN 50618, IEC 62930, UL 4703, TUV, RoHS |
| Flame Retardancy | IEC 60332 (as applicable) |
| Typical Lifespan | ≥25 years |
| Color Options | Red / Black / Custom |
Application range
1.Residential and commercial rooftop PV systems – for module-to-inverter DC connections.
2.Ground-mounted solar farms and industrial PV projects – string wiring and array cabling.
3.DC wiring for solar inverters and energy storage systems – including battery integration.
4.Off-grid and remote solar power systems – delivering DC power to off-grid loads or chargers.
5.System upgrades, extensions, and maintenance – ideal for additional circuits or cable replacement.
Competitive Advantages of 4mm² Twin Core PV Cable
1. Integrated Twin-Core Design Improves Installation Efficiency
Unlike single-core PV cables, the twin-core structure integrates both the positive and negative conductors into one cable. This provides several advantages:
Faster installation with fewer routing steps
Reduced risk of polarity mistakes during wiring
Cleaner and more organized cable layout
This is especially valuable in rooftop and large-scale projects where installation labor cost is significant.
2. High-Purity Tinned Copper Ensures Lower Electrical Loss
The conductor uses oxygen-free copper (OFC) with tin plating, which offers:
Lower DC resistance, improving overall system efficiency
Better corrosion resistance, especially in humid or coastal environments
Longer service life, maintaining conductivity over decades
For PV systems with long string lengths, lower resistance contributes to higher energy yield.
3. XLPE/XLPO Insulation Offers Superior Outdoor Durability
The cable uses cross-linked polyolefin insulation, which provides:
High temperature resistance (up to 90–120°C)
Excellent UV and ozone resistance
Superior flexibility and mechanical strength
Resistance to moisture, rain, and harsh weather
This ensures safe operation even in deserts, tropical climates, and cold regions.
4. Long Lifespan (≥25 Years) Matching PV System Requirements
The materials and construction are engineered to meet the long-term durability required in solar installations:
Resistant to thermal aging
Stable electrical performance over time
Compatible with 25+ year system lifecycles
Fewer replacements mean lower maintenance costs and better ROI for system owners.
5. Compliance with Global PV Standards
A high-quality 4mm² twin-core PV cable typically complies with:
EN 50618
IEC 62930
UL 4703
TUV / RoHS
why choose us
Lorem ipsum dolor sit amet consectetur adipisicing elit.
Strict Quality Control & Manufacturing Excellence
Produced under ISO9001 management with automated manufacturing lines, ensuring consistent conductor quality, insulation thickness, and electrical performance.
Premium Materials
High-purity tinned copper combined with durable XLPE/XLPO insulation provides lower power loss and excellent environmental resistance.
Long-Term Durability
Designed for a ≥25-year lifespan to match PV module service life and minimize maintenance requirements.
High Voltage Safety & Compliance
Fully compliant with EN/TUV/UL global PV cable standards, meeting safety requirements for engineering, tendering, and international project installations.
Customization & Fast Delivery
Supports custom lengths, printing, packaging, and OEM/ODM services. Flexible production allows fast response for bulk orders.
FAQ
Q1: What PV system sizes typically use 4mm² cables?
A: 4mm² PV cables are commonly used in residential and small commercial PV systems (e.g., 3–8 kW), depending on system current and design requirements.
Q2: Do you provide OEM/ODM customization?
A: Yes. Options include custom lengths, colors, printing, labeling, and packaging.
Q3: What certifications does the cable meet?
A: The cable complies with EN 50618, IEC 62930, UL 4703, TUV, and RoHS. Certification reports are available on request.
Q4: How is long-term outdoor durability ensured?
A: By using UV-resistant, weatherproof insulation materials and tinned copper conductors that withstand corrosion and temperature extremes.
Q5: What is the minimum order quantity (MOQ)?
A: MOQ is flexible and can be adjusted to project requirements. Contact our sales team for a tailored quotation.
Our address
606, Fortune Building, Sanqiao Subdistrict, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 18802926539
Hot Tags: 4mm2 twin core pv cable, China 4mm2 twin core pv cable manufacturers, suppliers, High Quality Solar Cable, TUV Certified Solar Panel Extension Solar Cable, Solar Cable, DC Solar Cable Tinned Copper, H1z2z2 K Single Core Photovoltaic Cable, 4mm2 Solar Cable