Explosieveilige verlichting is onderverdeeld in drie classificaties: IIA, IIB, en IIC.
Klasse IIA
Suitable for places with gasoline-like substances, zoals benzinestations. Het representatieve gas voor deze categorie is propaan.
Klasse IIB
Used in general factories where hazardous gases are present. Ethyleen is the representative gas for this classification.
Class IIC
Designed for factories exposed to waterstof, acetyleen, or carbon disulfide.