Steca Grid 8000 3ph Instructions D'installation Et De Service page 42

4.4.2 Sealing the AC connection
A tamper seal can be applied to the AC connection. The tamper seal wire is
fed through the counternut of the AC socket on the inverter and through an
opening in the opposing plug. The counternut has a hole for this purpose. See the
illustration on the right.
4.4.3 Connecting the isolation transformer
If an isolation transformer is required then it must be wired as shown below. If
connection  is missing, the LED illuminates red.
Reason: The inverter is not feeding the grid because it cannot monitor the isolation.
Danger
Risk of death by electrocution!
In the illustrated wiring example the primary and secondary sides of the isola-
X
tion transformer are not galvanically isolated.
2 1
 N-PE connection  Inverter
tion transformer  Mains grid
42
3 1
L1
L2
RCD
L3
N
PE
 Residual current protection device (RCD)
EN
4 1 5 1
L1
L2
L3
N
1 1 PE
 Isola-
737.096 | 11.37