Automate public lighting according to sunrise and sunset

Lighting management
Automate public lighting
according to sunrise and sunset
Customer advantages
b Absence of a brightness detector
increases operation reliability and allows
easier installation and maintenance.
b The liquid crystal display permanently
shows:
v the hour and minutes,
v the day of the week,
v the current operating mode,
v the current program.
b Manual waiver of temporary or permanent
ON and Off status is possible.
b The change to summer / winter time is
automatic.
Product advantages
b Extremely easy implementation and use.
b Intuitive programming.
b ON override external contact.
b Program saved up to 12 years if mains
failure.
b Mounting on symmetrical rail.
Requirement
b The mayor of the commune wants to increase the reliability of
public lighting operation to increase the comfort and safety of his
citizens.
b He wants to valorise his architectural heritage thanks to night-time
lighting.
b He also wants to monitor lighting operation time to make energy
savings.
Main contractor recommended solution
b Use an astronomic programmable light sensitive switch allowing
automatic switch-on and switch-off of lighting according to sunrise
and sunset times.
Products used
b An IC Astro astronomic programmable light sensitive switch
(cat. no. 15223 or 15224, according to countries).
b A C60 type protection circuit-breaker.
b A CT contactor (cat. no. 15383) and its protection circuit-breaker if
power consumption exceeds 2.3 kW.

Detailed solution
b The IC Astro light sensitive switch is configured only according to
the place of installation:
v either by selection of a country or town,
v or by its geographic coordinates, latitude and longitude.
b A difference in sunrise and sunset times is adjustable separately
by +/- 120 mn.
Solution diagram
b Maximum admissible power of the IC Astro output contact
depends on the load type.
b The rating of the CT contactor protection circuit-breaker depends
on installed power and load type.
O- OFF
Lighting
M9FS32AEN
Schneider Electric Industries SAS
89 boulevard Franklin Roosevelt
F-92500 Rueil Malmaison (France)
tel : +33 (0)1 41 29 85 00
http://www.schneider-electric.com
As standards, specifications and design develop from time to time, always ask for confirmation of
the information given in this publication.
This document has been printed on
ecological paper
Published by: Communication DE-S2E.
Design and layout by: Anne Pinchart, HeadLines
07/2003