Pepperl+Fuchs Ex de solutions are essentially flameproof enclosures (Ex d) combined with Ex e enclo-sures, 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, 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 pos-sible after initial installation. The Ex e enclosure underneath contains only components with separate Ex certification.
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