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Ⅰ. Product Overview
This 1×2.5 mm² black single-core solar cable is engineered for low to medium voltage photovoltaic systems. The single-core design with high-purity copper conductor ensures efficient power transmission, while the black UV-stabilized sheath provides durability in outdoor environments.
Ⅱ. Technical Specifications
2.1 Electrical Parameters
| Parameter | Details |
|---|---|
| Conductor Cross-Section | 2.5 mm² (single core) |
| Conductor Material | 99.97% oxygen-free copper |
| Rated Voltage | 1000V DC (compliant with IEC 62930) |
| Nominal Current Rating | 25A at 90°C (ambient 40°C) |
| DC Resistance | ≤7.41Ω/km at 20°C |
2.2 Physical & Environmental Parameters
| Parameter | Details |
|---|---|
| Sheath Material | UV-resistant cross-linked PE |
| Color | Black |
| Operating Temperature | -40°C to +90°C |
| Minimum Bend Radius | 4× cable diameter (≈12mm) |
| Flame Retardancy | IEC 60332-1 compliant |
| UV Resistance | Passed 1000-hour xenon arc test |
| Service Life | ≥20 years |
| Certifications | TÜV EN 50618, CE, RoHS |
Ⅲ. Key Features
3.1 Efficient Power Transmission
Single-core oxygen-free copper conductor minimizes resistance loss, ensuring ≥98% power transfer efficiency in short-distance applications.
3.2 Outdoor Durability
UV-stabilized sheath resists degradation from sunlight, humidity, and temperature fluctuations, making it suitable for permanent outdoor installations.
3.3 Easy Installation
Flexible design allows routing through tight spaces (e.g., rooftop trusses or conduit systems) with minimal installation effort.
3.4 Safety Compliance
Flame-retardant and halogen-free materials reduce fire risks and toxic emissions, meeting safety standards for solar installations.
Ⅳ. Application Scenarios
- Residential Solar Systems
Connecting solar panels to charge controllers in off-grid setups
Short-distance wiring in 1-5kW rooftop PV systems
- Small Commercial Setups
Interconnecting panels in small business rooftops (e.g., shops, restaurants)
DC wiring between modules and inverters in 10-50kW systems
- DIY & Portable Solar Kits
Ideal for portable solar generators, camping setups, or small-scale DIY projects
Lightweight design 便于 temporary installations
- Low-Voltage Sub-Systems
Wiring for solar-powered lighting, water pumps, or monitoring devices
Sub-circuits in larger PV systems requiring smaller conductors
Ⅴ. Installation Guidelines
Temperature Considerations: Avoid installation in areas exceeding 90°C or below -40°C.
Voltage Drop: Maintain runs under 50m to limit voltage drop below 3%.
Protection: Use conduit or cable trays in areas prone to mechanical damage.
Color Coding: Black sheath is commonly used for negative (-) DC connections; pair with red cables for positive (+) leads.
Ⅵ. Compliance Testing
Electrical Tests: Conductor resistance, insulation breakdown voltage, leakage current
Environmental Tests: UV aging, thermal cycling (-40°C to +90°C for 1000 cycles)
Mechanical Tests: Tensile strength (≥15N/mm²), abrasion resistance
Ⅶ. Packaging & Warranty
Standard Lengths: 100m, 500m, 1000m rolls
Packaging: Waterproof plastic wrap with cardboard reel
Warranty: 5-year manufacturer’s warranty against defects in materials and workmanship
For technical drawings, pricing, or customization (e.g., custom lengths or certifications), contact our sales team