Robust aluminum empty housing for mechanical engineering and automation technology. With its excellent mechanical and thermal properties, the Mx series from OBO is suitable for extreme stress in a wide variety of areas. It is therefore also ideal for use in industry, port and shipbuilding, and in agriculture. They protect electrical installations from high levels of stress. The products withstand extreme cold or heat as well as vandalism and impact on roads, railway lines, or in tunnels. The aluminum housings are each supplied with a cover, stainless steel screws, seal and 2 or 4 grounding screws.