The DDW-220, DDW-221 and DDW-222 have been designed to meet the Class1 div2 and ATEX approval which are directives that covers both equipment and protective systems used in potentially explosive atmospheres. Atmospheres where gas, mist, vapour and dust may occur in such concentration that it would become explosive in a normal oxygen environment and could be ignited by hot surfaces, electrically generated sparks, electrostatic discharge, radio and electromagnetic waves, stray electrical or leakage currents. Atex is adopted by the European Union to facilitate free trade in the EU and the EEA by aligning the technical and legal requirements for products intended for use in potentially explosive atmospheres. And Clas1 div 2 is the corresponding US approval.
In this Directive, equipment is considered to be any device that contains a potential ignition source and requires special measures to be incorporated in its design or application to prevent ignition.
The DDW-220, DDW-221 and DDW-222 have been ATEX approved according to II 3G EEx nA IIT4 and Class1, Division2, Groups A,B,C&D.T4 and can be fitted in Zone 2 environments.
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