The Steca Solsum-F-generation is one of the most successful and the most commonly used charge controllers in solar home systems. With load currents of up to 6.6 A for automatic switching from 12 V or 24 V, it is ideal for devices with a power output of up to 160 W.
The circuit board is completely electronically protected and with the LED user interface makes it easy to check the battery status at any time. Large terminals enable the easy connection of solar panels, battery and load. The Steca Solsum F works as a low loss series controller on PWM basis.
Series controller
Voltage regulation
Automatic voltage adjustment
PWM regulation
Multi-stage charging technology
Current compensated load disconnection
Automatic load reconnection
temperature compensation
Common positive earthing or negative earthing on one terminal
Monthly maintenance charge
Electronic protection functions
Overcharge protection
Deep discharge protection
Reverse polarity protection of load, module and battery
Automatic electronic fuse
Short circuit protection for load and module
Overvoltage protection at module input
Open-circuit protection without battery
Reverse current protection at night
Over-temperature and overload protection
Battery over-voltage shutdown
Multifunction LED display
Multi-coloured LED
4 LEDs show operating states
- for operation, level of charge, error messages
