ZONEX ATEX- and IECEx-Certified, Type 4X - Zonex Enclosures are designed and certified to meet ATEX Directive 2014/35/EU as well as IECEx and AEx standards for increased safety in housing electrical components in Zone 1 and Zone 2 applications. nVent HOFFMAN ATEX Ex e enclosures are not intended for use in explosion-proof or flame-proof applications.