Solar Charge Controller Steca PR 0505

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The Steca PR 0303 solar charge controllers is optimally suited for use in small solar home systems with module currents up to 5 A.

Availability: In stock


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Solar Charge Controller Steca PR - Datasheet
Steca Electronics Services Brochure



A 75 Wp module can be connected, which easily allows operation of lamps, radios and a small television. All loads can be switched off using the manual load switch on the controller. The extremely low own consumption makes the Steca PR especially suitable for professional applications in telecommunications and traffic management technology. Since this is a serial controller, it is extremely flexible in the type of power source that can be connected. The electronic fuse makes the
controller completely maintenance-free and robust.

Product features

  • Series controller
  • Voltage regulation
  • PWM control
  • Multistage charging technology
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • Common positive grounding or negative grounding on one terminal

Electronic protection functions

  • Overcharge protection
  • Deep discharge protection
  • Reverse polarity protection of load, module 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
  • Battery overvoltage shutdown 


  • Multi-coloured LED
  • 3 multi-coloured LEDs show operating state for operation, state of charge, fault messages


  • Manual load switch 


  • Approved by the World Bank for Laos
  • Compliant with European Standards (CE)
  • RoHS compliant
  • Made in Germany
  • Developed in Germany
  • Manufactured according to ISO 9001 and ISO 14001

Technical Data

Technical Data

Manufacturer Steca
Current 5 A
Protection class : IP 32
DC System Voltage 12 VDC
Weight in kg: 0.1600
Dimensions (length x width x height) : 146 x 90 x 33 mm


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