ZHNYU Electric, established in 1992, has accumulated 34 years of specialized expertise in manufacturing low-voltage electrical components, including our flagship product: the solar DC fuse box. Our dedication to precision engineering and innovation positions us as a leading supplier to the global photovoltaic industry. Our solar DC fuse boxes are meticulously crafted through a state-of-the-art production process involving advanced injection molding for the enclosures, precision stamping for conductive parts, and automated assembly lines ensuring consistent quality. Each unit undergoes rigorous testing under IEC standards, including verification of current-carrying capacity, dielectric strength, and temperature rise limits. In our laboratory, we simulate 1,500V DC arc faults to validate reliable interruption, a critical safety feature that protects personnel and equipment in solar arrays. The manufacturing environment is strictly controlled, with a humidity level at 45% and temperature at 22°C to ensure stable material properties.