Spacial 3D sheet metal box with full door and equipped with solid bottom plate, suitable for the creation of electrical automation, control, command and regulation panels in all industrial environments and especially in difficult environments such as the chemical, petrochemical and agri-food industries, cement factories, textile industries, steel industry, shipyards, ports, telecommunications, telephone networks, water purification stations, public lighting. External covering based on structured polyester. Monobloc body with cross structure, double thickness sheet metal front profile, drip-shaped. Flat bottom. Easily removable and reversible door, with a 20m return in double thickness sheet metal which gives an excellent degree of rigidity, 120° opening.