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EN-US
Connecting the Fronius IG to the Public Grid (AC)
General Your inverter needs to be connected to the AC disconnect, to the DC disconnect and to the
equipment grounding according to the following steps.
AC and DC are switched separately.
Inverter configu-
ration for connec-
tion to grids
without neutral
The inverter comes from the factory pre-configured for grid connection with neutral.
For a connection to grids without neutral the inverter must be reconfigured by setting a
jumper in the connection area.
Make sure, that the inverter is fixed
properly to the mounting plate
Open the connection area as shown in
the figure
Set the internal AC- and DC dis-
connects (1) to the "OFF" position
Remove the four screws (2) on the in-
verters faceplate (3)
Remove the display faceplate (3) co-
vering the connection area
WARNING! An electric shock can be fatal. Danger from grid voltage and DC volt-
age from solar modules.
- The connection area should only be opened by a licensed electrician.
- Never work with live wires! Prior to all connection work, make sure that the
AC and DC wires are not charged.
(2) (3)
(2)
(1) (2)
NOTE! When removing the dis-
play faceplate covering the con-
nection area do not pinch, bend or
strain the ribbon cable for the dis-
play.
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