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Idiomas disponibles
Idiomas disponibles
Connections in the housing
General remarks
Important! Note the following when fitting the positive and negative cables:
-
-
This means that the metric screw joint is suitable for cables with diameters from 11 to 22
mm.
(+) cable for
Fronius IG
Fig. 12 Connecting (+) cable
(-) cable for
Fronius IG
Fig. 13 Connecting (-) cable
Important! In addition to the metric screw joints for the (+) and (-) cables are two additio-
nal bushings with blanking covers. The bushings are intended for two M16 screw joints.
These M16 joints allow the user to connect additional cables (16 mm²) to the (+) and (-)
bolts for external lightning protection.
WARNING! The solar modules operate at high voltage. Before performing any
work on the Fronius String Control 125/25, de-energise the solar module
Attach an M12 cable lug to the positive and negative cables
The metric screw joint for the positive and negative cables is size M32
(6)
(5)
(4)
(3)
(1)
(2)
(6)
(5)
(4)
(3)
(2)
1.
Feed (+) cable (1) through metric
screw joint (2)
2.
Using the following installation materi-
als, fit (+) cable (1) to (+) bolt (3)
(torque 28 Nm):
-
Washer (4)
-
Friction washer (5)
-
Hexagon nut (6)
3.
Tighten metric screw joint (2)
1.
Feed (-) cable (1) through metric
(7)
screw joint (2)
2.
Using the following installation materi-
als, fit (-) cable (1) to (-) bolt (4)
(torque 28 Nm):
-
Spacer (3)
-
Washer (5)
-
Friction washer (6)
-
Hexagon nut (7)
3.
Tighten metric screw joint (2)
(1)
9
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