They are certified according to the latest ATEX and IEC EX standards. Types of explosion protection include Ex db, Ex eb with IP66 degree of protection. Enclosure Material: Aluminum, glass fiber reinforced polyester (GRP) and stainless steel. Terminal boxes and junction boxes from Pepperl+Fuchs are designed to protect signal and power distribution networks in explosion-hazardous and challenging environments. All explosion-proof enclosures, lighting or power distribution boxes are manufactured using the latest technologies, both mechanical and. The explosion-protected junction and pulling boxes, available in different methods of protection and materials, can also be used with terminals, as a command and control units and as interface units depending on the models.