User manual ecoSMART
e-system
56
EN
admissible voltage for each input is 550Vdc while the current in each string must not
exceed 12A.
DC terminal
Cable section
Maximum current
Positive pole (red)
6 mm
2
25 A
Negative pole (black)
6 mm
2
25 A
Table 1.1. Dimensioning of the power wires and the external switch of PV strings.
Insert the wires from the photovoltaic fields through the back cover in the upper left
side of the
e-system
and connect them as shown in the figure.
Ilustration 3.3. PV strings connection in the electrical panel.
NOTE
▪
The electrical panel of the e-system includes active protections to prevent high currents can
damage the inverter.
▪
The DC general panel should include elements that allow the individual disconnection of each string
individually, depending on the local directive and the regulations for photovoltaic installations in
each country.
▪
It is highly recommended that you check the polarity with a tester before connecting the PV fields
to the e-system.
STRING1
STRING2
+
-
+
-