European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D209-00-511-IS
Issue 1
20-08-22
Sheet 4 of 7
NN L L E E
To maintain the ingress protection rating and mode of
protection, the cable entries must be fitted with suitably rated,
certified cable entry and/or blanking devices during
installation.
For ambient temperatures over +40ºC the cable entry
temperature may exceed +70ºC or the cable branching
temperature may exceed +80ºC. Therefore suitable heat
resisting cables and cable glands must be used as per table
below
Ambient Temp.
40ºC
45ºC
50ºC
55ºC
Min. Rating of cables
and cable glands
90ºC
95ºC
100ºC 105ºC
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.
8. Cable Connections
The E2xC1LD2 combined sounder beacon has separate
printed circuit boards in the sounder and beacon sections.
The terminals for the sounder are on the printed circuit board
in the sounder section and the terminals for the beacon are
on the printed circuit board in the beacon section (see figures
6a and 6b). See section 6 of this manual for access to the
enclosure. See section 10 and 11 for AC and DC wiring
diagrams respectively. Electrical connections are to be made
into the terminal blocks on the PCBA located in 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
sectional area of 2.5mm². Strip wires to 8mm. Wires may also
be fitted using ferrules. Terminal screws on the sounder
PCBA need to be tightened down with a tightening torque of
0.45 Nm / 4 Lb-in. Terminal screws on the beacon PCBA
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 the Combined Beacon & Sounder
for Simultaneous or Independent
Operation.
By default, the Beacon and Sounder PCBAs are pre-wired
together for simultaneous operation. The units will be
powered simultaneously if either the sounder or beacon
board is powered. Stage switching is only available on the
sounder boards. If the sounder and beacon boards are
required to operate independently, the wires connecting the
Beacon and Sounder PCBAs should be removed from both
sets of terminal blocks, refer to fig. 4 & 6.
10. AC Wiring
A 6-way terminal block is provided on the AC Sounder for
power. There are 2-off Live, 2-off Neutral and 2-off Earth
terminals in total. A 3-way terminal is provided for stage
switching. There are 1-off stage 2, 1-off stage 3 and 1-off
common terminals in total. 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.
Refer to schematic document D209-06-511 for further detail
on stage switching and terminal connections.
Fig. 4a AC Sounder Terminals
Fig. 4b AC Beacon Terminals
11. DC Wiring
A 10-way terminal block is provided on the DC Sounder.
There are 2-off +ve, 2-off -ve, 2-off stage 2, 2-off stage 3 and
2-off Earth terminals in total. 3-off 2-way terminal block are
provided on the DC Beacon. There are 2-off +ve, 2-off –ve, 1-
off stage 2 and 1-off stage 3 terminals in total.
For further detail, refer to schematic document D209-06-511.
DIP Switch
Volume Control
S3
S2
C
E
N
L
