Hazardous area classification, explained
Zones, divisions, gas groups and temperature classes decide which equipment may sit in a classified area. IP and NEMA ratings answer a different question.
Hazardous area classification
Zoning for explosive atmospheres.
Division/zone system (Class I Div 1, Zone 0/1/2, ATEX/IECEx) rating where flammable gases, dusts, or fibers may ignite. Determines enclosure, wiring, and device ratings for every component in the area.
See also: Intrinsic safety (IS) · IP rating
Use the concept: Compressed air leak cost calculator · Engineering unit converter · Cp, Cpk, Pp & Ppk calculator
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