Steca Solarix STC4040 40A Charge Controller

Steca Solarix STC4040 40A Charge Controller

  • $280.00

  • Ex Tax:$254.55
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Solar charge controllers Steca Solarix 2525 and 4040 are recently developed products based on the internationally renowned controller family Steca PR. With increased load and module current, the controllers are now also suitable for even larger systems. The devices also feature an integrated USB charging port for charging smartphones and tablets. Use of the latest charging technologies combined with state of charge determination enable optimal battery maintenance and module power monitoring. A large display informs the user about all operating modes with the aid of symbols. The state of charge is represented visually as a level meter. Data such as voltage, current and state of charge can also be displayed digitally as figures on the display. The solar controller also has an energy meter which can be reset by the user.


  • 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
  • USB charge socket for smartphones and tablets


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