SMA Solar Technology AG 3 Product Description
User Manual STP5-9TL-BA-en-10 13
Webconnect function Indicates that connection to Sunny Portal is
possible
Multi-function relay Indicates that the multi-function relay is active
Thermometer Indicates that the power of the inverter is limited
due to excessive temperature
Power limitation Indicates that the external active power limitation
via the Power Reducer Box is active
PV array ‒
Inverter ‒
Grid relay A closed grid relay indicates that the inverter is
feeding into the electricity grid.
An open grid relay indicates that the inverter is
disconnected from the electricity grid.
Electricity grid ‒
Symbol Designation Explanation
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