Fronius Symo 12.0-3 208-240 - Page 24

24
Connection Diagram & Connection Area
Fronius Symo
Energy-
meter
AC ~ distribution
panel
DC = disconnect
DC = terminal block
PV frame ground
L1
L2
L3
N
Grounding terminal
Grounding electrode terminal
L1
N
L2
L3
Main grounding system
Lockable AC ~
disconnect
switch
DC = (+)
DC = (-)
Ungrounded solar modules
MPPT2
MPPT1
Example
Cu / Al Cu
DC = (+) DC = (-) AC ~
Cu: min. AWG 14 - max. AWG 6
Al : AWG 6
16 lbf.in / 1.8 Nm
DC = Disconnect