Connecting Dc Main Lines/Dc Feeder Cables - Weidmuller Annex Bedienungsanleitung

4.2.3. Connecting DC main lines/DC feeder cables

Requirement
The DC main lines/DC feeder cables must be isolated and de-energized. In general,
isolation can be achieved by switching off the inverter. If necessary, the DC fuse at the
inverter input can be opened and the inverter can resume operation.
WARNING
Risk to life as a result of arcing and electric shock.
The DC main lines/DC feeder cables must only be connected when the
power supply is disconnected! Failure to do so will result in a risk to life
from arcing and electric shock.
Procedure
1 Run the DC main lines/DC feeder cables through the cable glands into the interior of
the enclosure. Make sure you connect the DC main lines/DC feeder cables with the
correct polarity.
2 Connect the DC main lines/DC feeder cables direct to the stud terminals or direct to
the switch-disconnector. Check the terminal in the electrical drawing provided with
the combiner box.
3 Tighten the cable glands. The correct tightening torques can be found in the annex.
4 Check the tightening torques of the connections. The correct tightening torques can
be found in the annex.
5 Make sure there is sufficient strain relief for the DC main lines/DC feeder cables.
6 Close all unused cable glands with blanking plugs to prevent moisture penetrating the
combiner box.
Order Number: 7791700275 · Ed. 4 · 04-2016
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