
Figure 1
Override button
(also used in
conjunction with the
programme button to
programme clock and
times/days for ON
periods
24 hour clock
display
Contents
1 EL11 (24 hour) or EL17 (7 day)
1 Panel mount bezel
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1 Tamper proof cover
4 Surface mount stand offs (length 10mm)
2 Panel mount bolts
2 Self-tapping screws (No. 4 x 5/8 in) for panel mount bolts
2 Self-tapping screws (No. 6 x 3/8 in) for attaching bezel to EL11/17
General
The EL11 (24 hour) or EL17 (7 day) is primarily a panel mounted timeswitch
rated at 240V, 16A resistive at T40. It can also be surface mounted within
cubicles if required.
The contacts are single pole change over and are fully voltage free. The front
of the unit is shown in figure 1. The rear of the unit showing wiring
connections and the internal circuit is shown in figure 2.
Connections are made to the EL11/17 by 1/4 in receptacles. The unit can
be made tamper proof by wiring the cover supplied in place which still
leaves the display visible.
Programme button
used to programme
clock and times/days
for ON periods
Slide switch provides
continuous ON,
continuous OFF or
normal programme
operation

Installation – Panel Mounting
For panel mounting (in panels up to 7.0mm thick with the cut-out as shown in
figure 3) the EL11/17 should be snapped into the bezel supplied and secured
in place by the use of the 2 No. 6 x 3/8" self-tapping screws provided
as shown in figure 4.
When selecting a position for the unit it should be born in mind that a
clearance behind the front panel surface of 26.0mm is required over
the full area of the panel cut-out.
The unit is designed to be mounted from the front of the panel by the
following procedure:
a. Insert the 2 bolts provided in the locations shown in figure 5.
b. Then insert the 2 No. 4 x 5/8 in self-tapping screws into the bolts
and engage thread.
c. Make connections to the unit by wires terminated in 1/4 in receptacles
from behind the panel. Ensure that the wiring is adequate for the load
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to be carried.
d. Insert the EL11/17 complete with bezel into the panel and tighten up
the two No. 4 self-tapping screws. The ears on the bolts will rotate
under the tightening action to clamp the unit to the panel.
67mm
67mm
R 3.5mm
Figure 2
Figure 3

Use No. 6 x 3/8" selftapping screws to fully
secure bezel to EL11/17
(fixed from rear)
Bezel
No. 4 x 5/8" selftapping screw
Figure 4
Surface Mounting
The EL11/17 without bezel can be surface mounted using the 4 securing holes
as shown in figure 6. The unit can be stood off from the mounting surface by
10mm using the 4 spacers if required. Screws are not provided and it must be
remembered that if used in this way the EL11/17 must be installed within a
23
housing or cubicle to prevent access to the mains terminations.
Figure 6
On/Off/Timed Slide Switch
The three position slide switch allows continuously ON, continuously OFF
or normal programmed operation.
Figure 5
Bolt
4 fixing holes
for surface
mounting