These equipment are suitable to be installed in places in which, during the
normal activities, explosive atmosphere caused by gases, vapours, mists or
caused by mixture of air and combustible dust are likely to occur.
They have protection mode
• with flameproof enclosure “d”
• part with flameproof enclosure “d” (lamp compartment) and part with
increased safety “e” (connections compartment).
They are normally used for providing light with symmetric distribution of
the luminous flux.