Getting IECEx Zone 2 Certified Products into the North American Market 

Electrical equipment to be used in a hazardous location must be designed so that there are no hot surfaces inside or outside each component and so that no arcing/sparking can occur. In other words, the equipment cannot become a source of ignition in such a location, and it must be certified as safe.
The IEC Zone classification system is used to certify products as safe for use in the international marketplace. Products certified for use in Zone 2 of the IEC Zone classification system have already been proven to be in compliance with the IEC 60079 series of Standards and one or more of the following protection techniques:
1) Ex ic (Intrinsic safety)
2) Ex ec (Increased Safety)
3) Ex nA (Non-arcing)
4) Ex nC (Sealed device)
5) Ex nR (Restricted breathing)
6) Ex mc (Encapsulation)
7) Ex pzc (Pressurized)
8) Ex dc (Flameproof)
9) Ex oc (Oil immersion)
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