SMA NR-STP200IFX-AST Austauschanleitung Seite 16

6 Replacement of the AC Power Controller Assembly
7. Remove the AC power controller assembly by pulling it towards you.
8. Remove the spacers for the STP-BFS:
• Press together the locking tabs of the spacers on the rear of the STP-BFS and pull the
spacers towards you.
• Store the spacers safely in case the spare part is delivered without spacers.
6.2 Installing the AST Assembly
Compatibility of assemblies
The assemblies STP200IFX-AST and STP200FCH-AST are not compatible.
• Before replacing the assembly, ensure that the assembly is only replaced with a
compatible assembly. Refer to the assembly's type label to find out which assembly is
installed in the inverter.
There are assemblies on this assembly with a safety extra-low voltage circuit (SELV circuit). To
ensure the safety of the circuits, an optical inspection must be carried out before installation.
Figure 3 : Position of the SELV circuits
Position Designation
A SELV circuit
Additionally required equipment
☐ Isopropyl alcohol
☐ Lint-free cloth
16 STPTLEE-10-AST-RM-xx-10
SMA Solar Technology AG
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Replacement Manual