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Steca 10A PWM solar controller for caravans, motorhomes, boats and yachts

Steca 10A PWM solar controller for caravans, motorhomes, boats and yachts

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10A 12V/24V powerful solar charge controller / regulator for charging batteries in off-grid solar power systems

SPECIAL NOTICE : If you are purchasing this part for a self build project, please see our terms & conditions. FULFILLED BY PHOTONIC UNIVERSE : This product is fulfilled by Photonic Universe, our Solar partner.



Recognised as a global manufacturing leader in off-grid solar electronics, we are proud to be a direct distributor of Steca Elektronik products. All Steca controllers are able to control the entire energy flow while ensuring optimal battery maintenance in any power system. With the development, production, and testing stages conducted in their German manufacturing facility and all products supported by a 5 year warranty, Steca products are truly "100% made in Germany" to the highest European quality standards.

This StecaTM 10A PWM charge controller uses the latest charging technologies, and is suitable for 12V or 24V battery banks. State of charge determination (using Steca AtonIC technology) enables optimal battery maintenance and module power monitoring.

The controller is designed to protect batteries whilst charging them, providing automatic cut off to prevent over-charging and deep discharge. It comes with an automatic electronic fuse and a full range of electronic protection functions: overload, short circuit, high voltage, reverse polarity, high temperature, lightning and transient surges, reverse current at night, and load disconnection.

Other key features of this controller include:

  • Extremely high reliability, with an integrated self-test function and a long 5 year warranty
  • Parallel connectivity, to allow two or more controllers for large solar arrays
  • Multistage PWM pulse charging increases your battery life
  • Automatic data logging and easy to use LCD display to show operating parameters
  • CE and RoHS compliant, designed and manufactured in Germany


This controller can work with sealed, AGM, gel and any liquid electrolyte batteries.

Click on the Details and Specifications tab for more information about this product.

Details & Specification


Controller specifications:

  • Nominal battery voltage: 12V / 24V
  • Rated charging, load current, diversion current: 10A
  • Solar input voltage up to 47V and power up to 160W
  • 3 pairs of terminals (input, battery, output)
  • Graphical LCD display
  • Temperature sensor for automatic compensation (-4mV/K/Cell)
  • Minimum voltage to operate: 6.9V
  • Self-consumption: 12.5 mA
  • Working temperature: -10°C to +50°C
  • Enclosure: IP32 (indoor)
  • Size: 187 x 96 x 44 mm
  • Weight: 350 g
  • Mounting holes for ease of installation


The product is covered by 5 year warranty. For more information please refer to our Terms and Conditions.




The product comes with an instruction manual (see the 'Documents' tab for a download link) which explains connections and operations.

If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see Contact Us page for more information).



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