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© 2018 KOSTAL Solar Electric GmbH
Installation
5. When mounting the sockets and plugs on the DC
cables used by the solar modules, ensure their
polarity is correct! The poles of the PV strings
(PVfield) must not be earthed.
6. Plug the sockets and plugs of the DC cables onto
the inverter. Keep the plug seals from the plug
connectors.
Fig. 39: Overview of DC connections
H
The DC side is connected.
IMPORTANT
INFORMATION
The cross-section of the DC cables
should be as large as possible,
a maximum of 4 mm² for flexible
cables
and 6 mm² for rigid cables.
We recommend using tin-plated
cables. If non-tin-plated cables are
used, the copper strands may oxi-
dise, as a result of which the transi-
tion resistance of the connections
will be too high. Note the details
provided by the plug manufacturer.
IMPORTANT
INFORMATION
The solar module types used and
the orientation should be in the
same PV string.
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