ATEX, IECEx, and North American schemes share technical roots in IEC standards but differ in marking, quality assurance, and market surveillance expectations.
This article highlights considerations for Ex d Motors: Selection Basics for Projects under equipment certification themes. It is educational and not a substitute for project-specific standards, certificates, or AHJ rulings.
The IECEx scheme issues Certificates of Conformity (CoC) and relies on IECEx OD procedures; many national regulators accept IECEx with local registration steps.
North American Class I/II/III and Division 1/2 rules in NFPA 70 Articles 500–505 must be read together with product listing limitations and the authority having jurisdiction.
The equipment level of protection (EPL) must match or exceed the hazardous area: Ga/Gb/Gc for gas, Da/Db/Dc for dust, per IEC 60079-14 installation assumptions.
Map your equipment EPL and type of protection to the classified area, then verify installation conditions of use, cable entries, grounding, and maintenance intervals. Keep declarations and certificates version-controlled.
If your team needs a second opinion on markings, drawings, or a certification gap analysis, HazloLabs can help scope the next steps.