Equipment of Group III is intended for use in areas with an explosive dust atmosphere, other than mines susceptible to firedamp. We are IECEx certified to manufacture compliant dust enclosures and have extensive experience in dust explosion protection applications. At. Selecting a suitable explosion proof junction box is critical when you're working in environments where flammable gases, vapours, or combustible dusts are present. These hazardous area enclosures are engineered to prevent internal explosions from igniting in hazardous atmospheres, safeguarding both. Hazardous Area Distribution Boxes & Enclosures for IECEx Installations Inatex supplies IECEx-certified hazardous area distribution boxes and empty enclosures for Zone 1 and Zone 2 explosive atmospheres. This enables UV and thermal stability, providing mechanical impact resistance and.