Steca Solarix Solar Regulator 2020-x2


157,30 € tax incl.

The Steca Solarix 2020-X2 PWM controller can support two batteries simultaneously, allowing a 12 or 24 V voltage that can be combined with a main and secondary battery. Its own power consumption is very low and the LCD setting screen very intuitive.

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" Solar regulator made in Germany "


Steca Solarix 2020-x2 is an ultra-modern two-battery charge controller that is perfectly suited for use in the leisure area. It is equipped with a solar panel input that is suitable for all 36-cell solar panels for 12V systems, and all 72-cell crystalline solar panels for 24V systems. Both the main battery and the Starter battery are charged continuously and simultaneously by the solar panel. Thus, 90 percent of the available power goes into the main battery, while the auxiliary battery is maintained at a full load level with a power of 10 percent.

Thanks to the Steca PA LCD1 tele-display, it is possible to modify the distribution of the load power. The charge controller is equipped with a powerful charging output that is powered only by the main battery. The charge controller has a USB charging socket through which you can charge smartphones and tablets. The remote display Steca PA LCD1 can be connected as an option.

Product Features


  • Series topology with MOSFETs
  • Automatic voltage selection
  • Voltage and current regulation
  • PWM Regulation
  • Multi-level charging technology
  • Disconnection of consumers according to the current
  • Automatic consumer reconnection
  • Temperature compensation
  • Possibility of grounding a positive or negative grounding terminal
  • Self test
  • Monthly equalization charge
  • USB charging socket for smartphones and tablets

Electronic protection functions


  • Overload protection
  • Protection against deep discharges
  • Reverse polarity protection of solar panels (≤ 36 V), consumers and battery
  • Automatic electronic fuse
  • Protection against consumer short circuits and solar panels
  • Protection against open circuit without battery
  • Reverse current protection at night
  • Protection against overtemperature and overload
  • Disconnection of consumers in case of overvoltage of the battery



  • 4 LEDs indicate service status



  • StecaLink Bus

Technical data


 Solarix 2020-x2
Characterization of the performance of operation 
System voltage12 V (24 V)
Own consumption22 mA
DC input side 
Vacuum voltage of the photovoltaic panel (at the minimum operating temperature)< 60 V
Panel current20 A
DC output side 
Consumer current20 A
USB charging socket5 V / 1,5 A
Reclosing Reference Point (LVR)12,5 V
Deep Discharge Protection (LVD)11,7 V
Battery side 
Final charge voltage14,1 V (28,2 V)
Fast charging voltage14,4 V (28,8 V)
Equalization charge15 V (30 V)
Setting the type of accumulatorgel
Main / secondary battery charge ratio90 % / 10 %
Working conditions 
Ambient temperature-10 °C … +60 °C
Installation and construction 
Terminal block (thin-wire / single-wire)6 mm² / 10 mm² - AWG 10 / 8
Degree of protectionIP 31
Dimensions (X x Y x Z)190 x 120 x 57 mm
Weight0,5 kg


Voltage12V / 24V