The K-series junction boxes are high-performance electrical connection products made of PA (Nylon 66) and PC (Polycarbonate) materials, both with a UL94-V2 fire rating and excellent flame retardancy. The operating temperature range is -40℃ to 110℃, and they are acid-resistant, heat-resistant, and oil-resistant. Metal components are made of brass, and the applicable voltage range covers 250V-450V. The exterior is blue and white. This series includes various models such as K207, K211, K215, K407, K411, and K415, with specifications covering different hole diameters and quantities. Dimensions vary depending on the model, meeting diverse electrical wiring needs and suitable for electrical system connections with high requirements for fire resistance, temperature resistance, and impact resistance.