The 20040901 part of Spelsberg is a type of electrical enclosure, available in a range of shapes, sizes, and materials. It is a panel mounted, modular enclosure system specifically designed for indoor applications. It is made of strong, high quality plastic with reinforced ribs and a robust aluminum frame and has removable covers. Its innovative mounting system makes it easy to assemble and provides a reliable connection and waterproof protection. These enclosures are resistant to mechanical stress, UV radiation, and corrosion, making them ideal for industrial and outdoor applications. They offer a wide range of protection against water, dust, oil, and other contaminants, making them ideally suited for protecting electrical components.