SMA Power Reducer Box

SKU: SMA Power Reducer Box

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Product Description

SMA Power Reducer Box

Feed-in management for PV plants

With the Power Reducer Box, SMA delivers a solution for PV plants that take part in feed-in management. It allows the grid operator to remotely control the plant performance in cases when the grid is overloaded. It achieves this by translating the transmitted setpoint values into control commands for the Sunny WebBox, which forwards them to the inverters. During this process, each change of status is logged several times, once in the Power Reducer Box and once in the Sunny WebBox. In addition, the grid operator’s requirements are visualized in Sunny Portal. Sunny Portal immediately informs the plant operator via e-mail about power limitations that have been undertaken.


  • Complies with the requirements for Germany’s Renewable Energy Sources Act (EEG) on feed-in management
  • Logging of all events and change of status
  • Meets the requirements of the German Medium-Voltage Directive (BDEW) for grid safety management


  • Active power limitation and reactive power setpoint
  • Reliably controls up to 2 500 SMA inverters

Easy to use

  • Straightforward integration into existing systems
  • Easy installation
  • Free support from the SMA Service Line
  • Integrated web server

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