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The term ATEX is an abbreviation of the French "Atmosphère explosible" and is used as a synonym for the European Union ATEX Product Directive 2014/34/EU in the explosion prevention and protection sector. This Directive applies in all EU and EFTA and also in some Eastern European countries. Depending on the area of use and the design of the equipment, a mark is issued for the equipment, which must be permanently attached to the solenoid.

Overview of marking of explosion proof products in pdf format