MEDC XB4 Manuel Technique page 3

English
1.0 INTRODUCTION
These high output (21 Joule) beacons have been designed for use in potentially explosive atmospheres and harsh
environmental conditions. The marine grade alloy or stainless steel enclosures are suitable for use offshore or
onshore, where light weight combined with corrosion resistance and strength is required.
2.0 INSTALLATION
General
When installing and operating explosion-protected equipment, requirements for selection, installation and
operation should be referred to e.g. IEE Wiring Regulations and the 'National Electrical Code' in North America.
Additional national and/or local requirements may apply.
The end user or installer shall ensure that this equipment is protected against external influences which could
adversely affect the explosion protection, or contact the manufacturer if in doubt of the suitability of this
equipment in the environment in which it is to be installed.
Ensure that all nuts, bolts and fixings are secure.
Ensure that only the correct listed or certified stopping plugs are used to blank off unused gland entry points and
that the NEMA/IP rating of the unit is maintained. MEDC recommend the use of a sealing compound such as
HYLOMAR PL32 on the threads of glands and stopping plugs in order to maintain the IP rating of the unit.
The beacon is directly mounted using the 2 off Ø9mm mounting holes in the base of the unit.
The holes have been designed to accept an M8 screw or bolt. MEDC recommend the use of stainless steel
screws.
Cable Termination
CAUTION: Before removing the cover assembly, ensure that the power to the unit is isolated.
Cable termination should be in accordance with specifications applying to the required application. MEDC
recommends that all cables and cores should be correctly identified. Please refer to the wiring diagram provided
with the product.
Ensure that only the correct listed or certified cable glands are used and that the assembly is shrouded and
correctly earthed.
All cable glands should be of an equivalent NEMA/IP rating to that of the beacon and integrated with the unit
such that this rating is maintained.
The internal earth terminal, where fitted, must be used for the equipment grounding connection and the external
terminal is for a supplementary bonding connection where local codes or authorities permit or require such a
connection.
© Eaton MEDC Ltd 2017 01/18