Eco-ficient Solutions - Hager

Eco-ficient Solutions
Make energy and cost saving your business

Eco-ficient Solutions
The need to save energy
Since the Kyoto Protocol Treaty, more and more emphasis
has been put on the need for energy saving awareness
affecting individuals and businesses alike. The treaty outlined
targets for developed countries to reduce their CO2
emissions; a challenging task due to the increasing use of
cars and industrial development.
An outcome from the Kyoto Protocol was that the European
Unity issued various directives, aimed at analysing and
optimising energy consumption within the member states,
in particular the Energy Performance of Building Directive
(EPBD).
This Directive has shaped Part L of the Building Regulations
in Ireland and Northern Ireland, aimed specifically at
reducing energy consumption in both dwelling and
non-dwelling buildings.
Building Energy Certificate (BER)
All buildings must have a building energy certificate (BER), as
issued by your local authority. This gives builders and
developers an opportunity to upgrade the energy
performance of existing or new installations.
Government Incentives
Governments are keen to encourage users and installers
wherever possible to use energy efficient equipment. This is
usually in the form of tax relief schemes that allow companies
to write off 100% of the purchase value of approved energy
efficient equipment in the year of purchase. Please contact
your local authority on how to claim these benefits.

Total
67% 33%
Health
63% 11% 4% 12% 9%
Education
51% 15% 2% 11% 12% 9%
Communication
& Transport
Sports & Leisure
48% 16% 7% 8% 2%
20%
43% 17% 10% 15% 4% 10%
Other
43% 15% 5% 6% 4% 26%
Retail
35% 32% 5% 8% 4% 16%
Warehouses
34% 23% 10% 9% 3% 23%
Offices
32% 22% 21% 3% 15% 6%
Hotel and Catering
32% 12% 11% 34% 1% 10%
Government
26% 24% 7% 11% 17% 15%
0 10 20 30 40 50 60 70 80 90 100%
Lighting
Heating & Hot Water Cooling & Ventilation Catering Computing Other
The Role of Lighting in Energy Consumption
Extensive research has been conducted by the Chartered
Institute of Building Services Engineers (CIBSE) on the role
of lighting in energy consumption and has published in its
Energy Efficiency in Lighting report:
“The total number of units of electricity consumed by the
lighting installation will be affected by the length of time the
lighting is switched on, which depends on the amount of
daylight that is present and whether the room is occupied,
but also whether there are suitable controls, either manual
or automatic, to ensure optimum lighting conditions without
lights being left on unnecessarily.”
In the service sector up to 40% of electricity is used for
lighting alone so taking effective control of this can make
significant savings in energy and reduce costs.
Simple but effective lighting controls can include time
switches, dimmers and programmers, and can provide
significant benefits in the reduction of energy. Additionally
they are easy to use and can be installed either in new or
retrofit applications.
More automated solutions can be provided with occupancy
sensors, daylight sensors, pre-programmed light levels and
zoned lighting control with specifically designed lighting
systems, which can be designed at the new build stage or
installed later as a retro fit.
* the data above is provided by CIBSE

Simple Energy Saving Solutions - DIN rail mounted
time switches
Time based switches such as time switches and
programmers provide selectable on-off periods during the
day, week and year or a combination of all to control
various electrical loads.
Simple and effective energy savings can be achieved by
setting these devices so that the various loads are only
switched on when they are actually needed, thereby saving
unnecessary usage of energy.
The hager range of timers include electro-mechanical time
switches with an analogue display, and have 1 channel for
daily or weekly programming. These products are ideal for
controlling loads such as lighting, heating and shop window
displays etc.
Digital time switches have been developed with more
programmable flexibility for daily, weekly and yearly timing
functions where a more varied level of control is required in
domestic and commercial applications.
An optional Programme Key is available on some models to
provide easy backup to a PC and quick re-installation of the
programme.
Hinged cover to protect the
display and buttons
Backlit for easier use
(EG103E and EG203E)
Bar graph visual of the daily
programme.
Only 4 buttons for easy
navigation
Direct programming key for
transferring programme
settings from a PC with
programming softwtare.
The 1&2 channel digital timer switches, including the yearly EG400
programmers, can be programmed via the built-in interface or via
the PC programmed software (supplied).
A print out of the programme
can be produced for the project
and kept in the distribution file
for future reference.
Different keys can be used to
adapt the installation for
different uses.
Programmes for holiday and
shutdown periods can also be
programmed.
A double click on the programme
step is enough to
quickly modify the programme.
The programme can then be
saved on the PC and or be
transferred to the EG005/
EG002 key via the EG003
interface.

Electromechanical Time switches (Din Rail Mounted)
2 Module Analogue Time switches
Technical
Characteristics
EH010 EH011 EH110 EH111 EH171 EH191 EH209 EH210 EH211 EH271
Width in
modules 1 1 3 3 3 5 2 2 2 2
17.5mm
Voltage Supply 230V 230V 230V 230V 230V 230V 230V 230V 230V 230V
Operating
Cycle
Minimum
Switching
Supply failure
reserve
Manual
Override
24 hrs. 24 hrs. 24 hrs. 24 hrs. 7 days
15 min 15 min 15 min 15 min 2 hrs.
24 hrs. /
7 days
15 mins
/ 2 hrs.
24 hrs. 24 hrs. 24 hrs. 7 days
30 min 30 min 30 min 3.5 hrs.
- 200 hrs. - 200 hrs. 200 hrs. 200 hrs. - - 200 hrs. 200 hrs.
Auto /
On
Auto /
On
Auto /
On / Off
Auto /
On / Off
Auto /
On / Off
Auto /
On / Off
On / Off On / Off On / Off On / Off
Digital Time switches (Din Rail Mounted)
Technical
Characteristics
EG010 EG071 EG110 EG170 EG103B/E EG171 EG210 EG270 EG203B/E EG470
Width in
modules
17.5mm
1 1 3 3 2 3 3 3 2 5
Voltage Supply 230V 230V 230V 230V 230V
Operating
Cycle
230V &
DC
110 /
230V
110 /
230V
24 hrs. 7 days 24 hrs. 7 days 7 days 7 days 24 hrs. 7 days 7 days 7 days
Program Steps 5 20 20 20 56 20 20 20 56 84
230V
230V
No. of Channels 1 1 1 1 1 1 (pulsed) 2 2 2 4
from Hager
2 Module Analogue Timeswitches,
with or without clock hands

Simple Energy Saving Solutions - Time switches
Astronomical time switches are programmed in weekly cycles
in accordance with their geographical location. Functions
include automatic change of winter and summer time, making
this type of switch ideal for energy savings for commercial
and residential applications, especially the programming for
holiday periods and bank holidays.
Staircase timers provide control of lighting circuits with
automatic switch off after a pre-set time. This makes them
ideal for energy saving in corridor or staircase type
applications, with pre-warning of switch off and double delay
functions for the occupant’s safety.
Yearly Time switches
Technical
Characteristics
EG493E EG293B EG403E
Width in
modules 17.5mm
5 3 3
Voltage Supply 230V 230V 230V
Operating Cycle 7 days 7 days 7 days
Program Steps 300 300 300
No. of Channels 4 2 4
from Hager
Yearly time switches - 2 and 4
channels

Astronomical Time switches Staircase Timers
Technical
Characteristics
EE180 EE181 EMN001 EMN005
Width in
modules 17.5mm 2 2 1 2
Voltage Supply 230V 230V 230V 230V
Operating Cycle 7 days 7 days
Time Delay - -
30 secs to
10 mins
(1 hour
if button
pressed)
30 secs to
10 mins
(1 hour
if button
pressed)
No. of Channels 1 2 - -
A typical application example for energy saving using
EG493 yearly time switches
To reduce energy and hence running costs, a four channel
yearly time switch could be installed in a small office or
business property.
One channel could be used to control the lighting during the
evening to reduce unnecessary usage of energy. Another
channel could be used to ensure that storage heating is not
used over the weekends and bank holidays when the building
is unoccupied. A third channel could be used to control the
external advertising or building signage during unnecessary
periods e.g. between 10pm to 7am. The final channel on the
yearly timeswitch could be used to control the
immersion heating function, again, to ensure that the water in
the building will not be turned on during weekends and / or
bank holidays.
An example of potential savings from the first channel
example above are shown below:
Lighting Configuration “Light On” Time Consumption
Max power density 10W/m 2
Typical large office space
300m 2
11 hrs / 260 days + 1 weekend + 1 night
a month
11244 kWh / year
Max power density 10W/m 2
Typical large office space
300m 2
11 hrs / 260 days
Saving
8580 kWh / year
2664 kWh / year
25% Energy Saving

Simple Energy Saving Solutions -
Motion and Presence detectors
Motion detectors are designed to detect movements such as
a person walking through a building, stairways and corridors
for example. Presence detectors are designed for detecting
smaller movements such as people working at a desk.
from Hager
IP55 Motion Sensor
140º - 360º
Motion detectors are particularly effective when used in low
use areas such as bathrooms, toilets and storerooms when
the lighting will only be activated when the area is occupied,
thereby saving energy.
Presence detectors are ideal for controlling lighting in office
spaces as they not only detect large movements but also
smaller activities such as people working, so that they are not
left in darkness. When the area is left unoccupied the lighting
will be switched off thereby minimising the energy usage of
the area.
Some motion and presence detectors include a photocell
which senses natural daylight and can be used to control the
lighting during periods of high ambient natural lighting levels,
thus avoiding the use of unnecessary energy.
from Hager
Flush Mounted
Occupancy Sensor
Function
▼
Flush
Mount
Surface
Mount
Presence
Detection
Motion
Detection
Variable
Timeout
Photocell
Lux
Setting
Switch
Override
OS2/AP • • • • •
OS2/APSM • • • • •
OSFM • • • • •
OSSM • • • • •
EE810 • • • • • •
EE811 • • • • • •
EE812 • • • • • • •
EE804 • • • • •
EE805 • • • • •
EE85x • < 16m • • •
EE86x • < 16m • • •
EE87x • < 16m • • •

A typical application example for energy savings using
motion and presence detectors
In a large commercial building or office complex motion
detectors could be installed in the toilet and storage areas,
and presence detectors fitted in the office areas. With the
additional benefit of daylight sensing this means that the
lighting throughout the building would be optimised to match
the occupancy levels in every area. Some typical examples of
savings per area can be seen in the table below:
Energy Saving Potential through use of Occupancy Sensors
Storage Rooms
Corridors
Toilet Areas
Conference Room
Training Room
Open Plan Office
Single Occupant Office
0 10 20 30 40 50 60 70 80 90 100
Potential Energy Saving*
Absence
Detection
Remote
Control
Remote
Programming
N o of
Channels
Dimming
Control
Daylight
Harvesting
BMS
Integration
Comments
• • • 1 No
• • • 1 No
• • 1 No
• • 1 No
Klik applications and
absence detection
Standard presence
detection
1 No
1 No
1 1-10V • •
Rectangular detection
area
1 No
1 No
Standard motion
detection
• • 1 No
• • 1 No
• • 1 No
IP55 for outdoor and
indoor use with 16m
frontal detection
* e-source

Simple Energy Saving Solutions -
Lighting Dimmers and Twilight Switches
Modern dimmers use phase control to reduce or increase
the average voltage to the lighting load. The diagram below
shows this process in a graphical format.
Switch On
Switch On
On
Off
Off
Switch Off
On
This dimming method therefore provides opportunities for
energy savings as it reduces the total power consumed for
lighting under dimmed situations; these panel mounted
versions can be controlled by using external pushbuttons or
switches.
The table below shows the range of DIN rail mounted
dimmers available from hager, which are suitable for all light
sources including incandescent, LV and LVL halogen, and
fluorescent ballast.
A typical energy saving application using panel mounted
dimmers.
A large restaurant having two walls, made almost entirely
from windows, has dimmable lighting installed to allow each
dining area to be individually adjusted, by external
pushbuttons, to the required light ambience. During daylight
occupancy the areas nearest the windows are adjusted to
use the benefit of natural daylight hence saving energy during
this period.
Technical Features
Controls available:
On the product
External with illuminated pushbutton
Input 1/10V
Ambient lighting setting
300W 600W 1000W Pilot 1/10V
EV011
EV012
-
Yes
-
-
EV002
EV004
Yes
Yes
-
1 (EV004)
EV100 EV102 EV106 EV108
Yes
Yes
Yes (Slave)
-
Yes
Yes
Yes (Slave)
2 Levels
Yes
Yes
-
-
Yes
Yes
-
2 Levels
Types of outputs:
Direct (capacitive / inductive load)
Input 1/10V
Yes
-
Yes
-
Yes
-
Yes
Yes (Master)
-
Yes
-
Yes
Functions:
Protection overheating / overloads
Level indicator
Memorisation
Softstart
Yes*
-
Yes
Yes
Yes
EV004
Yes
Yes
Yes
-
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
-
Yes
Yes
Yes
-
Parameter settings:
Mini, max, level
Dimmind speed
Speed at start / stop
Transition speed for level call
-
-
-
-
EV004
EV004
EV004
-
Yes
-
-
-
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
*EV011: protection via integrated fuse, electronic protection for other products.

Light Detection ~ twilight switches
Light detection products such as twilight switches operate by
sensing ambient light and switching on or off against a preset
lux level. Generally the lighting will be unnecessary during
certain periods of the day and therefore energy will be saved
when controlled by these devices.
The table below shows the range of twilight switches
available, which can be used for effective lighting control in
public areas such as shopping malls, street lighting and
illuminated display areas.
Twilight Switches
Technical
Characteristics
EE100 EE101 EE110 EE170 EE171
Width in
modules 17.5mm 3 3 5 3 3
Operating Cycles - -
Program Steps - -
24
hrs.
15
mins
7
days
7
days
1 min 1 min
Voltage Supply 230V 230V 230V 230V 230V
No. of Channels - - 1 1 1
These wall mounted manual dimmer units can be used to
control small loads of lighting, up to 400W. The level of light
in the room can be set by way of the dimmer switch, ensuring
that only the necessary amount of light is being used
Wall Dimmers
Technical
Characteristics
PSD1/M PSD2/M PSD3/M PSD4/M
Gang 1 2 3 4
Way 2 2 2 2
W Max 400W 250 250W 250W
Fixing Centres 60.3mm 60.3mm 120.6mm 120.6mm
Mounting box
min flush
25mm 25mm 25mm 25mm

Simple Energy Saving Solutions -
Product Combinations
Example 2:
Products used:
Scene control
Time Switch EG203E
& Dimmer EV102
By combining the operations of a dimmer and time switch
significant energy savings can be realised.
The previous pages of this document have shown typical
applications of stand-alone products to provide energy
saving solutions, however by combining some of these
products even greater reductions in energy consumption can
be achieved.
As most applications are unique in their use of energy and
have different lighting requirements, the following examples
may be of help in determining what could be possible to
further enhance the reductions in energy usage and cost.
The products are easy to install, can be fitted in standard
modular enclosures based on the 17.5mm design and can
be quickly mounted on DIN rail. They are easy to set and
programme and therefore can be changed for future
requirements.
Overall the installation can contribute to the improvements in
the energy performance rating of the building.
The 2 channel weekly time switch can be used to control the
lighting more effectively during the evenings and weekends
when the building is unoccupied. The heating can be similarly
switched off during these same unoccupied periods.
Additionally the time switch can also be programmed with
dimmers so that the lighting can be dimmed at certain times
during the day. For example the first setting could be in the
morning when the lighting could be dimmed as the natural
daylight could be sufficient to provide enough ambient light.
The dimmer could be operated later in the afternoon as
daylight reduces and eventually reaching full lighting levels
during the evening. The overall effect will be to only use
energy when it is actually needed.
Benefits:
• The time switch ensures that the lighting and heating is
only used when they are needed and do not rely on people
to remember to switch them off.
• Energy consumption is further reduced with the dimmer
control so that the lighting matches the occupant’s
requirements against available usable daylight levels.
Example 1:
Products used:
Dynamic lighting
Presence detector
EE812 & Dimmer
EV102
Example 3:
Products used:
External building
signage control
Time switch EG103E
& Twilight switch
EE171
The combination of the presence detector coupled with the
dimmer provides a simple but effective control of lighting
whilst reducing energy.
The presence detector senses movement in the building and
controls the lighting depending on occupancy activity.
In addition the presence detector senses the varying ambient
light levels in the building from windows, skylights etc. and
provides a controlled output to the dimmer to maintain the
required preset constant level of lighting for the occupants.
Benefits:
• The presence detector ensures that the lighting is switched
off when the building is unoccupied.
• The presence detector maximises the use of daylight to
minimise the use of artificial lighting.
Combining these two products provides an effective use of
exterior building signage based on daylight and night time
requirements.
The twilight switch is programmed to ensure that the exterior
signage only activates against a preset low level of daylight,
ie switches on at dusk and switches off at dawn.
With the addition of a time switch further controls can be
integrated to control signage use over weekends, when it may
not be needed.
Benefits:
• The twilight switch minimises the energy usage during a
24 hour day
• The “holiday” mode of the time switch EG103E provides
additional energy savings by switching off signage completely
during closed periods.

Simple Energy Saving Solutions - Metering
As the saying goes “if you do
not measure it - you can not
improve it”. Kilowatt hours
meters measure the active
energy used in an electric
installation. This allows the
separate measurement of
energy consumption in
different areas of a large
facility, with the purpose of
allocating energy usage to
different cost centres. The
initial readings can be used
as a baseline for
determining energy usage,
and the subsequent readings
can be useful in identifying
energy saving or wastage.
These values can also be
important for calculating
payback times. The range
includes meters with pulsed
output for remote
indication or linking into an
energy management system.
Kwh meters can be used for
local metering or monitoring
of power consumption in
individual machines.
Part References
Single phase direct measure
EC050 EC051 EC110 EC111 EC112 EC120 EC121
Accuracy acc IEC1036 Class 1 (1%) 0.02 to 32A~ Class 2 (2%) 0.32 to 32A~ Class 2 (2%)
I max 32A ~ direct 32A ~ direct C.T. 100 / 5A
Network Single phase 230V ~ 50Hz Single phase 230V~ 50 / 60Hz
Counter
Total without reset
Total
without
reset
Total + partial with reset
Single phase 230V~ 50 /
60Hz
Total + partial with reset
Width 1 mod 3 mod 3 mod
Part References
Three phase direct measure
Three phase direct measure via CT
EC310 EC311 EC320 EC321
Accuracy acc IEC1036 Class 2 (2%) Class 2 (2%)
I max 80A ~ direct C.T. 50 at 1500 / 5A
Network
Three phase Tri / 500V 50 / 60Hz
with or without N
3 x C.T. / 1 x C.T. 400V ~
Tri / Tri + N 400V ~ 2 phase
Counter Total + partial with reset Total + partial with reset
Width 7 mod 4 mod
EC051 - Single Phase Kwh
Meter
EC320 - Three Phase Kwh
Meter
SR300 - Current Transformer

Energy Saving - Klik Lighting System
As lighting consumes the largest amount of energy in most
commercial buildings, accounting for 40% in the service
sector, it makes sense to manage it effectively.
As part of the market leading Klik range, Klik Digital is a
simple, cost effective ‘plug & play’ system, already
creating energy efficiencies at DLVA Swansea, Nottingham
Trent University, Arsenal’s Emirates Stadium, Coventry Ricoh
Arena and BOC Cambuslang to name but a few.
Using a proven design based on the very successful Klik
Lighting Distribution System (KLDS), the Klik Digital
Connection System (KDCS), has marshalling boxes in 4, 6, 8,
or 10 way configurations and pre-wired plugs for distribution
of power and data to digital ballasts (DALI & DSI).
Positioning of Sensors
KDCS makes best use of the available natural daylight. The
digital sensors will regulate the light level in accordance with
the natural daylight and light provided from adjacent
luminaries.
In this example KDCS is installed around the edge of the
room where natural daylight is available.
Digital
Occupancy
Sensor
Standard
Occupancy
Sensor
KLDS
KDCS
Digital
Dimmable
Luminaires
Standard
Luminaires
Occupancy Sensor Positioning
Occupancy Sensor Spacing
Sensor direction
Best detection is achieved by walking across the
detector beams not towards them. This should be considered
for natural corridors.
1m overlap
Increase the level of overlap to reduce the possibility of dead
spots.

Energy Saving - Klik Lighting System
KDCS can be used when an installation uses digital dimmable
luminaires throughout. It can also be used in conjunction
with KLDS if digital dimming is not required throughout the
installation. This has the benefit of reducing the capital costs
without compromising the performance.
The following provides a comparison between Klik LDS and Klik DCS part number references:
Klik LDS
Klik DCS
Marshalling boxes KLDS4 KDCS4
KLDS6
KDCS6
KLDS8
KDCS8
KLDS10
KDCS10
KLDS12
Pre-wired plugs P22/1.0LSF/2 P55/2
P22/1.0LSF/3 P55/3
P22/1.0LSF/4 P55/4
P22/1.0LSF/5 P55/5
P64AXR/1.0LSF/2
P55AXR/2
P64AXR/1.0LSF/3
P55AXR/3
P64AXR/1.0LSF/4
P55AXR/4
P64AXR/1.0LSF/5
P55AXR/5
Occupancy sensor OS2/AP OS3/D (for DSI ballasts)
OS2/APSM
OS4/D (for DALI ballasts)
OS3/DS (for DSI ballasts)
OS4/DS (for DALI ballasts)
OS3/DSW (for DSI ballasts)
OS3/DSW (for DALI ballasts)
Controller & OSDC OSDP
Programmer

Energy Saving Solutions - Tebis TX
Tebis TX technology can achieve true energy savings through
building automation. Maximum energy savings are achieved
where the system controls digital lighting and heating.
Configuring the system for both automatic switching of
lighting / heating plus predetermined timed settings is
simplicity itself. In addition, by using daylight linking PIR
devices to dim lighting in response to natural lighting
availability, energy savings can be maximised. This alone
has been proven to cut lighting energy consumption by up to
70%*.
Source: Building Energy Research Group, Department of
Buidling and Construction, City University of Hong Kong
Lighting Control
Switch all lights on or off or dim
from a main switch point
manually or automatically
depending on time of day,
whether a space is occupied or
even on the level of natural light
available.
Heating Control
Constant in-room temperature
display. Controlled manually,
automatically or using remote
control.
Shutter / Blind Control
Open or shut blinds and
shutters manually,
automatically or using remote
control.
Scene Setting & Scheduling
Set a scene with one
button to close blinds and dim
lighting for a presentation for
example, or schedule blinds to
close and heating to lower at
the end of each day.
In Room LCD Display
Shows temperature, time of
day, state of circuits and can
be used as four switch inputs
eg set for after hours cleaning
or offices / store closed etc.
Remote Control Interface
Hand held remote gives total
control of lighting, heating,
shutters and blinds wherever
you are in the room.
Tebis TX is highly flexible and can accommodate changes
during installations and even after commissioning.
Coupled with real potential for energy saving, this makes
Tebis TX a truly future proof system.

Case Study -
Flexible Control For New University Extension
McGills Electrical has used Hager’s Tebis bus based system
to supply a future proofed and flexible central lighting control
solution for the University of Dundee’s new 6,500m2 library
extension.
Using Tebis, McGills installed a single 30V bus line throughout
the extension. A conventional hardwired solution would have
used multiple cables. All the lighting circuits and switches
controlling them then simply tap onto the bus line via
connectors.
Says Graham Sutherland, project manager for McGills:
“Providing a solution for switching several lighting circuits
supplied from different distribution boards can be a major
exercise.
“A conventional hardwired solution would have involved
multi-core cabling throughout the building, all being
terminated into one central grid switching unit. Apart from the
logistics of terminating several cables into the correct switch
there is no flexibility to change specifications during the build.
Any change in switching control would involve extra cabling.”
Using Tebis each input and output device is assigned an
address and then programmed so certain lighting circuits only
respond to signals from particular switches. Individual circuits
can respond to more than one switch, so an infinite number
of switching variations are possible using the system.
The bus system also makes it easy to check the emergency
lighting. Someone simply switches off all the lighting circuits
to simulate a mains failure for a walk test.
Says Sutherland: “We probably saved about 20% labour
time using Tebis compared to conventional hard wiring. More
importantly however the system gives us the flexibility to
change or add to the specification without having to run new
cabling throughout the
building.”
The new extension provides students with IT and WiFi
facilities, integrates other libraries into one central building
and provides additional room for research.

Case Study -
Protection and energy saving solution for Tesco
Homeplus
Contractor Essex Electrical Group Plc has used Hager
distribution boards to provide both circuit protection and a
simple energy saving control solution for Tesco’s new
Homeplus stores.
To date Tesco is trialling seven non-food stores under the
brand Homeplus. In common with the group’s corporate
policy, the stores aim to minimise their use of energy. Each
store has a sales area of more than 30,000 sq ft.
Hager distribution boards provide all the circuit protection.
The company’s contactors, time switches and photocells also
provide lighting control. Lighting can account for more than
50% of the energy usage in a retail outlet so this was a key
energy saving initiative.
Typically each store has a panelboard with a mains incomer
of either 400A or 630A. This then feeds up to 12
sub-distribution boards, most of which are TP&N but with
some SP&N boards.
The lighting control uses a combination of a master
keyswitch, digital time switches and photocells all of which
switch the luminaires via contactors. The lighting circuits are
split so that 40% can be switched on for cleaning and/or
shelf stacking, with the remaining 60% switched on when the
store is open to the public.
The master key switch turns on 40% of the lighting at the
beginning of the shift and then turns off all the lighting at the
end of the day. Digital time switches switch on the remaining
lights when the store opens and also turn off 60% of the
lighting when the store closes to the public, for shelf stacking
and cleaning, and finally the remaining circuits at the end of
the day.
In addition photocells turn the lighting circuits on or off in
response to natural daylight levels. Roof lights maximise the
amount of natural light available.
Comments Andy Collinge, contracts manager for Essex
Electrical Group: “Tesco has opted for simple but effective
control of their lighting in their new Homeplus stores. Using
time clocks and photocells for automatic switching removes
the responsibility from the staff and ensures an energy
efficient solution.
“Using Hager’s digital timers saved us a lot of installation
time. Not only do they have a weekly cycle option to account
for different opening times, but they also have an intelligent
key that can be pre-programmed with the desired settings.
“For multiple installations with several lighting circuits that are
the same, using these timers saved a lot of commissioning
time. It also ensures that the different stores have the same
lighting control for consistency and if the opening times need
altering this can be done quickly and with minimum
disruption.”

Case Study -
Gateshead Schools Klik into Digital Lighting Control
Gateshead council is using Hager’s Klik DCS for digital
lighting control in its primary schools to help teachers get
more effective use of interactive wipeboards and to help save
energy.
Klik DCS consists of a marshalling box, which distributes
both power and data to the HF ballasts, and a programmable
sensor that combines movement detection with daylight
linking and allows scene setting. Using the system the
lighting is switched on to a programmed ambient light level
when movement is detected and then switched off or dimmed
down when no movement is detected after a preset time.
In addition to maintaining a constant ambient light level, the
system is programmed with different scene sets so if the
interactive wipe board is used the teacher can adjust the
lighting using a simple remote control. The remote control
also allows manual dimming up and down of the lighting.
All primary schools in Gateshead council are being upgraded
to digital lighting in an ongoing rollout programme.Comments
Peter Fallen, electrical engineer for Gateshead council: “We
specified Klik DCS because it is a cost-effective and easy
means of giving us the digital lighting control that we need.
The system is fast to install, causing minimum disruption and
typically takes just 10 minutes to commission for each
classroom. Another advantage is that we need no
commissioning engineers to programme the system, our
electricians can do it themselves while they are on site.
“In addition future maintenance is simple, since Klik DCS is
a plug and play system if there is a fault a luminaire can be
simply unplugged and replaced with minimal disruption.”

More innovative solutions from hager:
The Media Hub: patch panel solution
The Hager Media Hub is essentially the patchpanel
enclosure for the home. The standard version available from
Hager features the award-winning Gamma enclosure which
provides the neat solution of linking all
the Cat5e and Coax cabling in one central
place – enabling the networking of TV,
Internet and telephone – giving the end
user the latest in data transfer abilities.
The simple installation method makes it
easy for the installer too – contact hager
for full details and
training information.
Apartment Solution
(1 Row)
Standard House
Solution
(1 Row, 26 Mod)
Standard House
Solution
(2 Row, 26 mod with
mounting plate)
Flush Solutions...
Volta Flush Mounting Enclosures
Kit out your installation in style with these flush mounting distribution enclosures. With a metal door as
standard, 1 to 4 row, and 12 to 48 module spaces, these enclosures keep your installation neat and safe.
Wide range of door colours and finishes available:
FW Flush Enclosures
The new FW Flush Cabinets from Hager offer reliability and
flexibility. They are ideal for housing protection devices as
well as home automation or multimedia equipment. From 36
to 288 modules.
Installers see the increase in the demand for fitting additional
devices such as modems or TV equipment in the distribution
board. The FW Cabinets allow for the fitting of such devices
by way of a mounting plate which comes with or can be fitted
into the board, or can be fitted retrospectively. Cable entries
on the top and bottom come as standard.
Hager Ltd.
Unit M2
Furry Park Industrial Estate
Swords Road
Santry
Dublin 9
Ireland
Tel: +353 (1) 883 5844
Fax: +353 (1) 8869520
www.hager.ie
info@hager.ie
For full details on these products
and more, please call us to order
a copy of our General Catalogue
or just visit www.hager.ie