Steca PR2020 LCD – 12/24V 20/20A – Solar Charge Controller


Estimated Delivery 3-5 Working Days

Steca’s PR2020 LCD Solar charge controller combines the latest charging technologies with state of charge determination to allow for optimal battery maintenance and module power monitoring.


This solar charge controller uses symbols on the display to inform the user of operating modes and states.

State of charge is shown visually as a level meter or it can also be displayed digitally as figures, along with data such as voltage or current.

Steca PR2020 LCD Solar charge controller features

  • Shunt topology with MOSFETs
  • State of charge determination with Steca AtonIC (SOC)
  • Automatic detection of voltage
  • PWM control
  • Multistage charging technology
  • Load disconnection depending on SOC
  • Automatic load reconnection
  • Temperature compensation
  • Negative earthing of one or positive earthing of several terminals possible
  • Integrated data logger (energy meter)
  • Evening, night light and daylight functions
  • Integrated self test
  • Monthly equalisation charge

Electronic protection functions

  • Overcharge 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
  • Load disconnection on battery overvoltage


  • Graphical LC display
  • for operating parameters, fault messages, self test


  • Simple menu-driven operation
  • Programming by buttons
  • Manual load switch

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Additional information

Weight 1.5 kg
Dimensions 187 × 96 × 44 cm


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