Published March 2026 • Installation Practices • 4 min read

UPS and Batteries in or Near Classified Areas

Manufacturers and integrators working in explosive atmospheres must align design, testing, and documentation with the applicable IEC 60079 series and local adoption rules.

This article highlights considerations for UPS and Batteries in or Near Classified Areas under installation practices themes. It is educational and not a substitute for project-specific standards, certificates, or AHJ rulings.

Technical context

UL and CSA listings for hazardous locations map protection techniques to North American categories; dual marking with ATEX/IECEx is common on global product lines.

Canadian installations reference similar concepts in the CEC; always confirm edition year and provincial amendments.

Temperature class (T-code) and maximum surface temperature must remain below the ignition temperature of the process gas or dust cloud and layer, including fault conditions where required.

Applying this to installation practices

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.

Site reminder: Always retain the manufacturer’s instructions and the certificate conditions with the asset register. HazloLabs can review markings and documentation packages for multi-standard launches.

For DHA support, EMC planning, or equipment design aligned to IEC 60079, reach out to HazloLabs for a structured review.