PWM shunt battery charging
State of charge (SOC) battery regulation
Built in Ah counter
Boost charging
Equalising charge
Float charging
Automatic load reconnection
Manual load switch
Automatic selection of voltage (12 V / 24 V)
Temperature compensation
Positive grounding
(or) negative grounding on one terminal
Field adjustable parameters by two buttons
Lighting control options during nighttime
Interface to prepayment unit

The Steca PR charge controllers were launched in the year 2004 as
The fifth generation of charge controller technology (up to 900 Wp).
This high class state of the art product upgrades the Steca Solarix
Series by a customer designed LCD which shows the accurate state
Of charge (SOC) in percent and as battery gauge symbol. The heart
Of the controller is the integrated circuit called ATonIC II, which
Contains the improved regulation software based on a self learning
Algorithm.

Certificates
Listed for Worldbank funded projects in Nepal
Conform to European Standards (CE)
Made in Germany
Manufactured in a
- DIN EN ISO 9001: 2000 and
- DIN EN ISO 14001 facility

Electronic Protections
High voltage disconnect (HVD)
Low voltage disconnect (LVD)
Dept of discharge disconnection (DOD)
Reverse polarity of solar modules
Reverse polarity of load & battery
Electronic fuse
Short circuit of solar modules
Short circuit of load
Over temperature
Over voltage
Lightning protection by varistor
Low electronic interference (EMC)
Open circuit battery
Reverse current at night

Displays
Steca designed LCD in symbols and
Digits showing SOC, Vbat, all currents,
Ah, alarms, day / night and more.