The key benefits of this PV combiner box lie in its lightweight aluminum alloy construction, which offers high strength-to-weight ratio and excellent corrosion resistance, addressing the pain point of heavy, rust-prone enclosures in solar installations. Its IP65 rating provides protection against heavy rain and dust accumulation, ensuring uninterrupted power output in. The 8-string input design allows centralized connection of up to 8 PV strings, simplifying wiring and reducing installation time. The built-in SPD with a 20kA discharge current protects PV components from lightning and voltage surges, minimizing system downtime and repair costs. The UL94 V-0 flame retardant rating prevents fire spread in case of electrical faults, while the EPDM sealing strip maintains a tight seal even after repeated opening and closing for maintenance. Additionally, it features a transparent cover for easy visual inspection of internal components without opening the box.
This PV array combiner box measures 400mm (L) × 300mm (W) × 120mm (H) and weighs 3.5kg, making it easy to install on roof racks or utility poles. The aluminum alloy enclosure has a wall thickness of 1.5mm, with a powder-coated silver finish to resist UV radiation and corrosion. It includes 8 individual fuses with a rated current of 10A per string, protecting each PV string from overcurrent. The built-in SPD complies with IEC 61643-11 standards, providing comprehensive surge protection. The EPDM sealing strip has a thickness of 3mm, creating a dust-proof and waterproof barrier. The box is certified by UL1741, CE, and IEC 60529, confirming compliance with global PV system safety standards. Its rated voltage of 1000V DC and current of 160A support high-power PV arrays, while the operating temperature range of -40°C to 90°C ensures functionality in extreme Arctic and desert climates.
This combiner box is essential for both residential and commercial PV solar systems. For residential rooftop solar installations, it centralizes the output of 8 PV strings, simplifying wiring and improving system efficiency. In commercial solar projects, it is used to combine the output of multiple PV arrays, providing a single connection point to the inverter. It is also suitable for ground-mounted solar farms, protecting wiring connections from heavy rain, dust, and animal damage. For agricultural solar systems such as solar-powered irrigation pumps, it ensures reliable power distribution in rural outdoor environments. Additionally, it can be used for off-grid solar systems, protecting the connections between PV arrays and battery storage systems, ensuring stable power supply in remote locations. It is also ideal for solar-powered street lighting systems, providing centralized protection for multiple PV modules.
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