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Installation and operating instructions
QX³ series
Depending on the application it could be expedient to join two or three inputs
together to one group. These configurations are summarised in the two
illustrations below.
In this application one generator terminal box must be set.
In order to protect the inverter in the event of a fault, the maximum total
current of the PV strings connected in parallel must be limited to the short
circuit current specified in the "Technical Data" chapter.
In addition the fuse protection in the generator terminal box must limit the
maximum possible return current in a defective string to a value lower than the
defined return current resistance of the PV module.
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Q3 ENERGIE Installation and operating instructions QX³ series
Version 1.0, Stand 27.04.2015
43/109
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