Fronius Primo 208-240 3.8-1 Installation Instruction page 27

AC ~
1
2
5x
Torque (Nm / lbf.in.) → see printing near wire terminal
* main grounding terminal
** grounding terminals, e.g. for grounding electrode,
PV frame grounding
*** for connection of the grounded phase in corner grounded grids
AC ~
Sense
wire loop
min. 4 in.
(101.6 mm)
**
*
1
1
> 10 in. (250 mm)
GND
L2
L1
N
> 8 in. (200 mm)
AC ~
***
3
OFF
2
0.6 in.
GND
(15 mm)
2 4
1 3
≥ 100 mA
I
ΔN
AC ~
max. 63 A
27