The broad range of control boxes is designed for Zone 2 areas to IEC 60079-0 and IEC 60079-15 and for Zone 22 areas to IEC 60079-31. The enclosures can be made of stoveenameled steel, stainless steel or polyester. In addition to standard enclosures, special enclosures are fabricated to customer specifications. The polyester enclosures offer a special advantage: they can be combined like building blocks or fitted with cable glands using plug-in flange joints. If shielded cables are installed, brass flanges holding suitable cable glands are available for integrating the cable shields into an equipotential bonding system.