Solar Charge Controller Steca PR 2020-IP65 ALR


12/24V / 20A module current / 20A load current / graphic LCD / alarm contact / IP65

Code 321217
Weight 0.41 (0.50) kg
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12/24V / 20A module current / 20A load current / graphic LCD / alarm contact / IP65
The PR 2020-IP design is based on Steca’s PR charge controller series. It has a customer designed LCD which shows the accurate state of charge (SOC) as a percentage and as a battery gauge symbol. The heart of the controller is the integrated circuit called ATONIC II, which contains improved regulation software based on a self learning algorithm.
The Steca PR 2020-IP controller operates in harsh environments, for example where there is salt, moisture or dust. It works on PWM as a low loss series controller.


  • PWM shunt battery charging
  • State of charge (SOC) battery regulation
  • Built in Ah counter
  • Boost-, Equalising-, Float charging
  • Automatic load reconnection
  • 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
  • Optional potential free alarm contact
  • Optional: external temperature sensor

Protection functionality

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

Article No 321217

Additional information

Weight 0.50 kg
Dimensions 130.00 × 190.00 × 70.00 cm


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