Tailor-made Ex de Enclosure Solutions

Phil Black - PII Editor 12/01/2015

208 1 minute read

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Tailor-made Ex de solutions from Pepperl+Fuchs offer all the benefits of the Ex e and Ex d ignition protection classes in an ideal setup. These solutions are designed and built locally around the world in the company”s Solution Engineering Centers, to customers” specific requirements.

Ex de solutions from Pepperl+Fuchs are essentially flameproof enclosures (Ex d) combined with Ex e enclosures, into which terminals and control elements are installed in line with customer specifications. Special cable ducts ensure that the two enclosures are securely connected. A flange between the enclosures ensures that the Ex e enclosure is protected against explosions and prevents dirt from settling or moisture from penetrating the device.

Components for measuring and control technology, or electrical installation technology, that are not specifically designed for areas posing a risk of explosion can be installed in the Ex d enclosure.

In addition to isolated barriers or FieldConnex® fieldbus modules from Pepperl+Fuchs, these components may include DCS and ESD systems or other electrical components made to user specifications. The flameproof enclosure ensures that the non-hazardous devices do not pose a threat to the environment. In an ideal scenario, the Ex d enclosure will be opened as little as possible after initial installation, as special rules under IEC 60079-14 must be observed during opening and closing.

The Ex e enclosure underneath contains only components with separate Ex certification. This makes it much easier and safer to access within the system after activation than the Ex d enclosure. Terminals as well as control and monitoring elements can be serviced or replaced at any time, subject to compliance with the relevant provisions.

With Ex de, Pepperl+Fuchs is offering users the benefits of both ignition protection classes in a tailor-made solution. Ex de provides the ideal means of combining reliable protection for non-hazardous devices with the scope to commission and modify devices in a quick and simple process.