IECEx
An International approval scheme intended for equipment used in a potentially explosive atmosphere. An IECEx certification of conformity is given to equipment which conforms to the requirements of the International Electrotechnical Commission harmonized standards for equipment used in potentially explosive atmospheres. As with ATEX, these standards define design requirements for the equipment by protection concept, atmospheres, zone, temperatures, and more.
IEC = International Electrotechnical Commission
Ex = Explosive atmospheres
IEC + Ex = IECEx
IECEx certification assures that all safety requirements in the IEC standards are met and that explosive atmosphere areas and the personnel working within them are as safe as possible. The product labels will define the explosive atmospheres where the equipment may be installed as well as any salient safety warnings.