78 Product manual - PVS-175-TL;A.1 Version
EN
ATTENTION – A The connections can also be made with the wiring box detached from the power
module that can be connected later for commissioning. When working with the wiring box
detached, pay particular attention to:
- presence of ground connection (10)/(28)
- the top of wiring box must always be protected in outdoor installations with proper IP65
protection covers (optional accessory content in “PVS-175 Installation Kit”, to be ordered
separately). Refer to the dedicated “Installations of IP65 protection covers for wiring box
openings” paragraph for further information about the installation procedure.
NOTE – D Notes on the system sizing - Decisions on how to structure a photovoltaic system
depend on a series of factors and considerations, such as the type of panels, the space
availability, the future location of the system, energy production goals over the long term, etc.
A configuration program that can help to correctly size the photovoltaic system is available on
the ABB website (http://stringsizer.abb.com).
NOTE – D When configuring DC input and during the installation it’s needed to follow one basic
rule to avoid possible output power derating: All MPPTs shall be populated connecting at least
one string. Considering to connect 20 strings, proceed connecting one string per MPPT and
then connect the remaining strings in the selected MPPTs where you want to use 2 strings.
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