The Steca Solsum-F generation is one of the most successful and most frequently used charge controllers in solar home systems. With load currents of up to 10 A with automatic switching of 12 V or 24 V, it is optimally suited for devices with an output of up to 240 W.
The circuit board is completely electronically protected and the LED user interface allows easy reading of the battery status at any time. Large connectors allow easy connection of solar panels, battery and load. The Steca Solsum F operates as an energy-efficient series controller based on PWM.
Series controller
Voltage regulation
Automatic voltage adjustment
PWM control
Multi-stage charging technology
Current compensated load cut-off threshold
Automatic load reconnection
Temperature compensation
Common positive ground or negative ground of a terminal
Monthly maintenance charge
Electronic protection functions
Overload protection
Deep discharge protection
Reverse polarity protection of module, load and battery
Automatic electronic fuse
Short circuit protection of load and module
Overvoltage protection at module input
Open circuit protection without battery
Reverse current protection at night
Overtemperature and overload protection
Switch-off in case of battery overvoltage
Multifunctional LED display
Multicolour LED
4 LEDs indicate operating states
- for operation, charge status, fault messages
Certificates
RoHS compliant
Developed in Germany
Manufactured under ISO 9001 and ISO 14001
