ExECEx d explained
A practical explanation of Ex d flameproof enclosures, what the marking means and what Ex d does—and does not—guarantee.
Read technical guideFlameproof &
hazardous area
knowledge centre.
Clear, practical notes for engineers, buyers and maintenance teams selecting electrical equipment for explosive atmospheres.
Gas hazardous-area zones
Understand how Zone 0, Zone 1 and Zone 2 describe the likelihood and duration of an explosive gas atmosphere.
Read technical guideIIA, IIB and IIC
A clear guide to Group II gas subgroups IIA, IIB and IIC and how to read them on Ex equipment markings.
Read technical guideTemperature classes T1–T6
Learn what T1, T2, T3, T4, T5 and T6 mean on explosion-protected electrical equipment.
Read technical guideCable gland selection
A step-by-step checklist for matching a flameproof cable gland to the cable, enclosure, hazardous area and certificate.
Read technical guideIndia certification overview
An introductory map of standards, testing, BIS licensing and PESO approval considerations for Ex electrical apparatus in India.
Read technical guide