Technical data

PV
OFF GRID
PV
OFF GRID
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Steca Elektronik GmbH | 87700 Memmingen | Germany | Fon [phone] | Fax [phone] | www.stecasolar.com
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Steca Elektronik GmbH | 87700 Memmingen | Germany | Fon [phone] | Fax [phone] | www.stecasolar.com
Steca Solsum
5.0c, 8.0c, 6.6c, 8.8c, 10.10c
One of Steca’s bestsellers are the photovoltaic controllers
of the Solsum C series which are used in small solar home
systems with a 5 to 10 A solar charging and load current
capacity (up to 240 Wp). The Solsum C series was laun-
ched in 2004 as a redesign of the Solsum X series. The C
series advantages are large connection terminals, fully co-
vered PCB and a easy to understand display. The through
hole components assure easy local maintenance.
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130
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Features
Voltage regulation
PWM shunt battery charging
Boost- and Float charging
Automatic load reconnection
Automatic selection of voltage
(12 V / 24 V)
Temperature compensation
Electronic Protections
High voltage disconnect (HVD)
Low voltage disconnect (LVD), not 5.0c and 8.0c
Reverse polarity of solar modules
Reverse polarity of load and battery
Short circuit of solar modules
Short circuit of load
Over temperature
Over voltage
Lightning protection by varistor
Open circuit battery
Reverse current at night
Displays
2 LEDs
LED 1: yellow – battery charging LED -
by solar module
LED 2: green – battery full
LED 2: red – battery empty
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Certificates
Approved for Worldbank funded projects
in Indonesia by TÜV
Listed for Worldbank funded projects in Bangladesh,
China, Laos, Nepal, Sri Lanka, Uganda
Compliant to the use in tropical areas
(DIN IEC 68 part 2-30)
Conform to European Standards (CE)
Manufactured in an ISO 9001 facility
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Power class
5 A - 10 A
0 A 50 A 100 A
150 A
Solar Charge Controller
Solsum
5.0c
Solsum
8.0c
Solsum
6.6c
Solsum
8.8c
Solsum
10.10c
System voltage 12 V (24 V)
Max. input voltage 47 V
Max. module input
short circuit current
5 A 8 A 6 A 8 A 10 A
Max. load output current 5 A 8 A 6 A 8 A 10 A
LVD - -
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Max. self consumption 4 mA
End of charge voltage (float) 13.7 V (27.4 V)
Boost charge voltage; 2 h 14.4 V (28.8 V)
Equalisation charge -
Reconnection setpoint (LVR) without LVR 12.6 V (25.2 V)
Deep discharge protection (LVD) without LVD 11.1 V (22.2 V)
Ambient temperature allowed -25 °C ... +50 °C
Terminal size (fine/single wire) 2.5 mm² / 4 mm²
Enclosure protection class IP 32
Weight 165 g
Dimensions l x w x h 130 x 88 x 39 mm
Technical data at 25 °C / 77 °F
Steca PR
PR 0303, PR 0505
The photovoltaic controllers PR 0303 and PR 0505 are
used in small solar home systems with either a 3 or 5 A
solar charging and load current capacity (up to 75 Wp).
Loads such as lights, radios or small TVs can be switched
„off“ manually on the controller without additional wall
mounted switches. In professional applications such as
telecommunication, the controller can also be used in
small photovoltaic power supply systems. Thanks to the
universal series switching technology the controller can
be used with amorphous, thin film and crystalline solar
modules.
Features
Automatic electronic fuse
Manual load switch
PWM series battery charging
Boost- and Float charging
Current compensated deep discharge protection
(SOC / LVD)
Automatic load reconnection
Temperature compensation
Positive grounding (or) Negative grounding
on one terminal
Electronic Protections
High voltage disconnect (HVD)
Low voltage disconnect (LVD) current compensated
Reverse polarity of solar modules
Reverse polarity of load & battery
Electronic fuse
Short circuit of solar modules
Short circuit of load
Lightning protection by varistor
Open circuit battery
Reverse current at night
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Displays
3 LEDs
LED 1: yellow – battery charging LED -
by solar module
LED 2: green – battery full
LED 3: red – battery empty
Certificates
Approved for Worldbank funded projects in Laos
Made in Germany
Conform to European Standards (CE)
Manufactured in a DIN EN ISO 9001:2000 and
DIN EN ISO 14001 facility
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Solar Charge Controller PR 0303 PR 0505
System voltage 12 V
Max. input voltage 47 V
Max. module input short circuit current 3 A 5 A
Max. load output current 3 A 5 A
Max. self consumption 3 mA
End of charge voltage (float) 13.7 V
Boost charge voltage 14.4 V
Equalisation charge -
Reconnection setpoint (LVR) 12.5 V
Deep discharge protection (LVD) 11.0 V ...11.5 V
Ambient temperature allowed -25 °C ...+50 °C
Terminal size (fine/single wire) 6 mm² / 10 mm²
Enclosure protection class IP 32
Weight 160 g
Dimensions l x w x h 146 x 90 x 33 mm
Technical data at 25 °C / 77 °F
Power class
3 A - 5 A
0 A 50 A 100 A
150 A
60 WCOMSHS RV
146
90
33
MADE IN GERMANY
Technical data Technical data
Solar
Charge
Controller
Solar
Charge
Controller
240 WSHS RVCOM