6 Installation
Grounding the inverter housing
Installation and Operation Manual M125HV EU V3 EN 2021-07-12
56
6.5
Grounding the inverter housing
WARNING
High current
►
Always observe the local regulations relating
to grounding cable requirements.
►
To increase the safety of the system, always
ground the inverter housing even when this
is not required by the local regulations.
►
Always ground the inverter housing
before
connecting the inverter to the grid and solar
modules.
►
The grounding cable cross-section must be
at least 6 mm
2
.
The inverter housing can be grounded at 2
points:
●
Outside, at the right foot
●
inside, on the PE screw of the AC connec-
tion
6.5.1 Ground via the outer grounding screws
1. Bolt the grounding cable onto the right foot of the inverter.
Nuts, spring washer and washer are already mounted on
the inverter.
Available grounding screws:
1 x M10, torque: 25 Nm
2 x M6, torque: 7 Nm
2. Perform a continuity check of the grounding connection.
