Installation
20
Wiring AC Cables (Decentral ConnectionBox)
REFUsol 100K
982059/02
2020-11
1. Prepare the cables, grounding cables and insert it
through the cable glands.
2. Connect the PE conductor.
3. Connect the three AC conductors.
4. If an N conductor is present, isolate the N conductor
and place it securely in the ConnectionBox pro
-
tected against contact.
5. Tighten the union nut of the cable gland to ensure
tightness and strain relief.
6. Connect the potential equalization conductor with
ring cable lug to the PE threaded bolt (M8).
Fig. 15: Potential equalization (Central ConnectionBox)
7. Insert the DC cables through the cable glands and
connect them to the terminals.
8. Tighten the union nut of the cable gland to ensure
tightness and strain relief.
4.6 Wiring AC Cables (Decentral Connection
-
Box)
Fig. 16: AC connection area: Cable grommet
Cable lug to DIN 46235
25 … 240 mm² 16 … 150 mm²
Stud size for spade connection
M12
M10
Tightening torque
14 … 31 Nm
10 … 20 Nm
Stud size for potential
equalization
M8
Minimum cross section for the
potential equalization
6 mm²
Tab. 2:
Stud connection
DC+ DC-
L1 L2 L3
