Connecting Power Optimizers In Pv Strings - SolarEdge SE330K Installation Manual

35 Connecting Power Optimizers in PV Strings

Connecting Power Optimizers in PV Strings

String Length Guidelines
Home-run Cables: You can construct parallel PV strings of unequal cable length, that is,
the number of Power Optimizers in each PV string does not have to be the same.
However, the longest string, connected to the same inverter, should not include more
than five Power Optimizers than the shortest.
CAUTION!
When connecting three or more H1300 optimizer strings through a combiner
box, SolarEdge recommends using a 30A fuse for each individual string to
protect the system. However, be sure to check local electrical codes and
regulations to determine the proper fuse sizing for your specific installation.
ATTENTION!
Lors de la connexion de trois chaînes d'optimiseur H1300 ou plus via un
boîtier de combinaison, SolarEdge recommande d'utiliser un fusible de 30 A
pour chaque chaîne individuelle afin de protéger le système. Cependant,
assurez-vous de vérifier les codes et réglementations électriques locaux pour
déterminer la taille de fusible appropriée pour votre installation spécifique.
NOTE:
To minimize electromagnetic interference (EMI), make sure to minimize the
distance between the positive and negative DC cables.
Figure 12: H1300 Power Optimizer Connectors
SE330K Inverter P/N: SE330K-xxxxxxxxx