Features Details Sturdy Fiberglass Construction: The fiberglass junction box is meticulously crafted from heavy-duty fiberglass reinforced polyester made by precise cutting and welding. It has stronger wear resistance and keeps your equipment well protected in harsh environments. Outer Dimensions(H x W x D): 15.7 x 11.8 x7.9"/40 x 30 x 20 cm. Inner Dimensions(H x W x D): 14.6 x 11.4 x 7.5"/37 x 29 x 19 cm. IP66 Waterproof Grade: The sealing strip has excellent sealing performance, and the fiberglass electrical enclosure body ensures an optimal protection level of IP66, which avoids dirt and water from entering the box when the lid is opened. Keep all your circuits confidently in order. Reinforced Lock Hinge: The clear fiberglass box features a high-quality lock core to increase security and lockability, making it not easy to fall off. The high-strength hinged lid is designed to ensure that the door is not easily damaged or broken due to squeezing. Convenient Operation: The fiberglass enclosure box is equipped with a detachable galvanized mounting backplate and t-nut mounting slots for easy installation of electrical components. Complete accessories and mounting holes can quickly fix the fiberglass electrical box on the wall. Versatile Application: The fiberglass NEMA enclosure is suitable for indoor and outdoor applications, which protects circuits and avoids corrosion. It is ideal for various applications ranging from industrial equipment to home devices and can be used at factories, construction sites, squares, residential, courtyards, etc.