Cable Connections - E2S D2xB1X05 Instruction Manual

6.2. Access to the Enclosure
Warning – High voltage may be
present, risk of electric shock.
DO NOT open when energised,
disconnect power before opening.
Warning – Hot surfaces. External
surfaces and internal components
may be hot after operation, take
care when handling the equipment.
To access the enclosure, loosen the four M4 posi pan head
screws and withdraw the cover.
Cover
(Appropriate cable
entry devices to be
customer supplied)
Fig. 2 Accessing the Enclosure.
To replace cover, check that the 'O' ring seal is in place.
Carefully push the cover in place. Insert M4 screws with fiber
washers and tighten to 3Nm torque.
7) Selection of Cable. Cable Glands, Blanking
Elements & Adapters
When selecting the cable size, consideration must be given
to the input current that each unit draws (see Table 1), the
number of sounders on the line and the length of the cable
runs. The cable size selected must have the necessary
capacity to provide the input current to all of the sounders
connected to the line.
The entries can be ordered with one of the following options:
2-off M20 x 1.5 thread, 2-off ½" NPT thread & 1-off ¾" NPT
thread
If a high IP (Ingress Protection) rating is required then a
suitable sealing washer must be fitted under the cable glands
or blanking plugs.
For use in explosive dust atmospheres, a minimum ingress
protection rating of IP6X must be maintained.
For use in explosive gas atmospheres, a minimum ingress
protection rating of IP54 must be maintained.
NPT plugs should be greased before insertion.

8) Cable Connections

Electrical connections are to be made into the terminal blocks
on the PCBA located in the enclosure. See section 6 of this
manual for access to the enclosure.
Wires having a cross sectional area between 0.5 mm² to
2.5mm² can be connected to each terminal way. If an input
and output wire is required the 2-off Live/Neutral or +/-
terminals can be used. If fitting 2-off wires to one terminal
way the sum of the 2-off wires must be a maximum cross
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D211-00-201-IS
4-off
M4 Cover
Screws
Issue 1 20-08-22
sectional area of 2.5mm². Strip wires to 8mm. Wires may also
be fitted using ferrules. Terminal screws need to be tightened
down with a tightening torque of 0.56 Nm / 5 Lb-in. When
connecting wires to the terminals great care should be taken
to dress the wires so that when the cover is inserted into the
chamber the wires do not exert excess pressure on the
terminal blocks. This is particularly important when using
cables with large cross sectional areas such as 2.5mm².
9) Wiring
For further wiring schematics refer to document D211-06-201
9.1. AC Wiring
3-off 2-way terminal blocks are provided on the AC beacon
for power. There are 2-off Live, 2-off Neutral and 2-off Earth
terminals in total.
LL NN
Fig. 4 D2xB1X05/D2xB1X10 AC Terminals
9.2. DC Wiring
3-off 2-way terminal blocks are provided on the AC beacon
for power. There are 2-off +ve, 2-off -ve and 2-off Earth
terminals in total.
- +
Fig. 6a D2xB1X05/D2xB1X10 48 VDC Terminals
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Sheet 4 of 6