EN
Grid connection
The grid connection of the solar inverter
must have 5 wires (L1, N, L2, L3, PE). Cable
cross-sections of 5 x 4 mm
2
are recommen-
ded.
The solar inverter is connected to the sup-
ply grid via the circuit board terminals insi-
de the unit.
!
We recommend a 3 x 25 A safety cutout
for devices NT 6000, NT 5000 and NT 4000
and a 3 x 16 A safety cutout for device
NT 2600 as grid protection element in the
grid feed-in direction. No consumption
units must be connected to the feed line
from the solar inverter to the automatic
cut-out. The solar inverter only feeds in
via terminal L1. Please always observe the
connection configuration. Incorrect confi-
guration can result in destruction of the
unit.
L1 N L2 L3 PE
L1 N L2 L3 PE L1 N L2 L3 PE
L1
L2
L3
N
PE
Three-phase grid connection distributed over three units
107
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