EXPLOSION PROTECTION ENCLOSURE TYPES - Continued


#1

Ex m
Encapsulation
Relays, signal &
control units
Apparatus is totally encapsulated by a non-porous compound & electrical connection is by flying leads

Ex n
Non - Incendive*
Gives a level of protection by housing electrical equipment in substantial enclosures that inhibit mechanical damage & give some degree of ingress protection

Ex o
Oil Immersion
Switchgear
Transformers
Equipment is totally immersed in oil preventing an explosive atmosphere from reaching the equipment