Steca PR 0303 / PR0505

The photovoltaic controllers PR 0303 and PR 0505 are used in small solar home systems with either a 3 or 5 Amp 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.

Certificates

Approved for Worldbank funded projects in Laos
Made in Germany
Manufactured in a
DIN EN ISO 9001:2000 and
DIN EN ISO 14001 facility

Features

Voltage regulation
Automatic electronic fuse
Manual load switch
PWM series battery charging
Boost charging
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
Low electronic interference (EMC)
Open circuit battery
Reverse current at night

Displays

3 LEDs
(1) battery charging LED
(2) green LED = battery full
(3) red LED = battery empty

PR0303 PR0505

Solar Charge Controller	PR0303	PR0505
System voltage	12V
Max. module input short circuit current	3A	5A
Max. load output current	3A	5A
Max. self consumption	3mA
End of charge voltage (float)	13,7V
Boost charge voltage	14,4V
Equalisation charge	-
Reconnection setpoint (LVR)	12,5V
Deep discharge protection (LVD)	11,0V...11,5V
Ambient temperature allowed	-25 °C...+50 °C
Terminal size (fine / single wire)	6 mm² / 10 mm²
Enclosure protection class	IP22
Weight	160g
Dimensions l x w x h	146 x 90 x 33 mm