SMA SB 2500TL-21 Installation - Manual (Page 18)

Product Description SMA Solar Technology AG
18 SB25-30TLST-21-IA-en-13 Installation Manual
Temperature symbol The power of the inverter is limited due to excessive
temperature.
Power limitation External active power limitation via the
Power Reducer Box is active.
PV array ‒
Inverter ‒
Grid relay If the grid relay is closed, the inverter feeds power into
the grid. If the grid relay is open, the inverter is
disconnected from the grid.
Electricity grid ‒
Symbol Designation Explanation