MEDC XB15UL Manuel Technique page 2

English
1.0 INTRODUCTION
These certified strobes have been designed for use in potentially explosive atmospheres and harsh
environmental conditions. The glass reinforced polyester enclosures are suitable for use offshore or
onshore, where light weight combined with corrosion resistance is required.
Stainless steel screws and optional mounting bracket are incorporated ensuring a totally corrosion free
product. Units can be painted to customer specifications and supplied with identification labels
2.0 INST LL TION
General
When installing and operating explosion-protected equipment, requirements for selection, installation and
operation should be referred to eg. IEE Wiring Regulations and the 'National Electrical Code' in North
merica. dditional national and/or local requirements may apply.
Ensure that all nuts, bolts and fixings are secure. MEDC recommend the use of stainless steel screws.
Ensure that only the correct listed or certified stopping plugs are used to blank off unused gland entry points and
that the NEM /IP rating of the unit is maintained. MEDC recommend the use of a sealing compound such as
HYLOM R PL32 on the threads of glands and stopping plugs in order to maintain the IP rating of the unit.
Note: For non-hazardous areas marine use, these strobes are only for use in vessels 65 feet or greater in length.
Mounting
Direct mounted version
The unit can either be directly mounted using the inserts moulded into the back of the enclosure (standard),
or a backstrap (optional) can be fixed to the base of the unit thus giving an optional mounting position
for when direct mounting is deemed unsuitable.
To reduce the risk of ignition of hazardous atmospheres, conduit runs must have an appropriate UL or
IECEx certified sealing fitting connected at the conduit opening of the enclosure.
There are 2 off M5 inserts in the base of the enclosure for direct mounting.
Please note: for direct mounting, observe the following formula to determine length of fixing screw
required:-
Length of screw = Thickness of mounting surface + 25/64" (10mm)
There are 2 off 8.5mm mounting holes in the optional backstrap. These have been designed to accept
an M8 screw or bolt.
Pole mounted version
The unit can be mounted to a ½" or ¾" pipe and may be mounted in any position. To mount the unit,
thread fully onto conduit and secure with the set screw provided.
To reduce the risk of ignition of hazardous atmospheres, conduit runs must have an appropriate UL or
IECEx certified sealing fitting connected at the conduit opening of the enclosure.
02/15 © MEDC 2015