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European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D204-00-001-IS Issue 7 16-12-2022 Sheet 4 of 6
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 need to be tightened
down with a tightening torque of 0.45 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.
12) Wiring Unit
The units come with two options for the terminal block.
A DIN rail version which has 8-way connection and allows for
limited wiring of EOL devices.
The PCB Terminal Version has a 6-way connector but is
designed to allow for full configuration with Series and EOL
devices in a number of wiring configurations.
For EOL and Series device limitations and configurations see
Section 15.
For wiring schematic see document D204-06-001
Wiring Diagram For 8-Way DIN Rail
Fig. 4 DIN Rail in Base
Wiring Diagram For 6-Way PCB Terminal Board
Fig. 5 PCB Terminal Block in Base
See section 15 and page 7 for details of adding Series and
EOL devices on the PCB. This can either be done at the
order stage or added to the correct terminal blocks afterward
(see example on sheet 7). All devices must comply with the
requirements stipulated in section 15.
13) Testing unit operation
The break glass unit can be tested without the need to
break/replace the frangible glass element.
A test key (Plastic Key Supplied with unit) is used to
mechanically drop the glass down activating the switch.
The test key is inserted in the test cam and rotated clockwise
by an angle of 90º the glass element will visibly drop down in
the viewable window.
The call point switch will now change over its contacts to
operate the alarm.
Once testing is complete the unit needs to be reset, the test
key is rotated back anticlockwise 90º to its original vertical
position. The glass element should now raise up so it is level
again (horizontal) in the viewable window.
1. 2. 3.
Insert test
Hold in Rotate back
Key rotate
position anticlockwise
clockwise
during to reset
60º
test
14) Replacement of glass element
If the break glass unit has been operated the broken glass
element can be quickly replaced.
The break glass cover plate is removed by unscrewing the 4
off M4 cap head screws attaching it.
M/S 1 M/S 2
+ - + -
1 3 4 6
SERIES 1
SERIES 2
EOL 1 EOL 2
