Cable Connections; Cable Glands - E2S BExBGL1D Instruction Manual

SAFETY WARNING: If the BExBGL1D beacons are used at
high ambient temperatures, i.e. over +40ºC, then the cable
entry temperature may exceed +70ºC and therefore suitable
heat resisting cables must be used, with a rated service
temperature of at least 110ºC.
10) Earthing
Both AC and DC beacon units must be connected to a good
quality earth. The units are provided with internal and
external earthing terminals which are both located on the
terminal chamber section of the unit (see figures 2 and 3).
BExBGL1D Beacon Cover Internal View
When using the internal earth terminal ensure that the
stainless steel M4 flat washer is between the incoming earth
wire and the enclosure.
When using the external earth terminal a cable crimp lug
must be used. The cable lug should be located between the
two M5 stainless steel flat washers. The M5 stainless steel
spring washer must be fixed between the outer flat washer
and the M5 stainless steel nut to ensure that the cable lug is
secured against loosening and twisting.
The internal earth bonding wire ensures that a good quality
earth is maintained between the flameproof chamber casting
and the flameproof cover casting.

11) Cable Glands

The BExBGL1D beacons have dual cable gland entries which
have an M20 x 1.5 entry thread as standard. Only cable
glands approved for Ex 'd' applications can be used, which
must be suitable for the type of cable being used and also
meet the requirements of the Ex 'd' flameproof installation
standard EN60079-14:2008 / IEC60079-14:2007.
When only one cable entry is used the other one must be
closed with an Ex 'd' flameproof blanking plug, which must be
suitably approved for the installation requirements.
For combustible dust applications, the cable entry device and
blanking elements shall be in type of explosion protection
increased safety "e" or flameproof enclosure "d" and shall
have an IP 6X rating according to EN 60529.
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2468-P
Internal
Bonding Wire
Terminal
2 off M20
Cable Entries
Internal Earth Terminal
Figure 3
Issue D 18-03-10
SAFETY WARNING: If the BExBGL1D beacons are used at
high ambient temperatures, i.e. over +40ºC, then the cable
entry temperature may exceed +70ºC and therefore suitable
heat resisting cable glands must be used, with a rated service
temperature of at least 110ºC.

12) Cable Connections

The cable supply connections are made into the terminal
blocks on the electronic pcb assembly located in the
flameproof enclosure, see section 7 of this manual for access
to the flameproof enclosure. The AC unit has two live
terminals and two neutral terminals for the input and output
supply wiring and the DC unit has two +ve terminals and two
-ve terminals for the input and output supply wiring. Both
units have S2 and S3 terminals to remotely change the flash
pattern, see section 13 of this manual.
BExBGL1D AC LED Beacons
Flash Pattern
Pin Headers
BExBGL1D DC LED Beacons
Flash Pattern
Pin Headers
Wires having a cross sectional area of up to 2.5mm² can be
connected to each terminal way. If an input and output wire is
required a 2.5mm² wire can be connected to each terminal
way. W hen connecting wires to the terminals great care
should be taken to dress the wires so that when the cover is
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Sheet 3 of 4
Supply Terminals
Stage S2 & S3
Terminals
Figure 4
Supply and
Stage S2 & S3
Terminals
Figure 5
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