Protieksplozijska razsvetljava je razvrščena v tri kategorije: IIA, IIB, in IIC.
Razred IIA
Suitable for places with gasoline-like substances, kot so bencinske črpalke. Reprezentativni plin za to kategorijo je propan.
Razred IIB
Used in general factories where hazardous gases are present. Etilen is the representative gas for this classification.
Class IIC
Designed for factories exposed to vodik, acetilen, or carbon disulfide.