Steca Elektronik catalogue PV Off Grid (13|2019)

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SOLAR-HOME-SYSTEMS
with Steca solar charge controllers
Overview of devices
A solar home system consists of a Steca solar charge controller, one or more
solar modules, a battery and the connected loads.
The Steca solar charge controllers control the energy flow of the entire system.
They make sure that the solar module charges the battery quickly and
effectively, but they also protect the battery against overcharging. If the
loads discharge the battery, the solar charge controller, thanks to its precision
in calculating the state of charge, switches off the load at exactly the right
moment, thus protecting the battery from the dangers of deep discharge.
Furthermore, Steca solar charge controllers are equipped with an intelligent
battery monitoring system. The most effective charging method is selected
according to the requirements of the batteries. The solar charge controller is
the central controlling component in solar home systems, for it affects all the
functions of the system. For this reason, it is important to choose a reliable
and high-performance solar charge controller.
The solar charge controller is connected directly to the battery using a cable
as short as possible, and fixed to the wall near to the battery, so that it can
be effectively cooled by the passing air flow.
In principle, the battery is always connected to the solar charge controller
first. Then the solar module array is connected to the solar module input of
the solar charge controller. Only direct current loads are used in solar home
systems. They are connected directly to the load output of the solar charge
controller. This means the Steca solar charge controllers always show the
battery‘s exact state of charge, and thus ensure optimal battery maintenance
in all situations. Various Steca energy-saving lights, Steca solar cooling units,
DC-to-DC converters and other loads can be used.
Steca Solsum
Solar charge controller
6 - 10 A; 12 / 24 V
Steca PR
Solar charge controller
10 - 30 A; 12 / 24 V
Steca Solarix PRS
Solar charge controller
10 - 30 A; 12 / 24 V
Steca PR 2020 IP
Solar charge controller
20 A; 12 / 24 V
Steca Solsum
Solar charge controller
25 - 40 A; 12 / 24 V
Steca Solarix
Solar charge controller
25 - 40 A; 12 / 24 V
Steca Solarix MPPT
Maximum Power Point Tracker
10 - 20 A; 12 / 24 V
Steca Solarix MPPT
Maximum Power Point Tracker
30 - 50 A; 12 / 24 / 48 V
Smartphone
A
B
E
C
Key:
A Solar modules
B Solar charge controller
C Battery
E Load
Steca PF 240-H
Solar refrigerator/freezer
240 l; 12 / 24 V
Steca PF 166-H
Solar refrigerator/freezer
166 l; 12 / 24 V
Steca LED
LEDs
4 W, 6 W, 8 W, 12 W
12 / 24 V
Australia
Sweden Burkina Faso Botswana
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