Fronius String Control 250/25 DCD DF - Manual (Page 70)

12
1
1
1
1
1
OFF
ON
- Insert metric screw joints corresponding to the number of available
solar module strings, insert threaded plugs in the empty positions.
- Follow a specific sequence when inserting the metric screw joints:
from bottom to top and from outside to inside.
- Use the specified tightening torque corresponding to their size for the
metric screw joints and threaded plugs.
Installing Metric Screw Joints on the Fronius
String Control 250/25 DCD DF
31
35
32
33
34 54
26
25
1
2
3
4
27
5
6
28 29
30
M16
M32/M40 M32/M40
M16
M25
M20*
* only for optional overvoltage protection as outlet for the ground cable
Preparation
General
Recommen-
ded Sequence
for Inserting
the Metric
Screw Joints