REFUSOL REFUsol008K Instrucciones De Uso página 27

BA_REFUsol 008K-023K_V04.0_WW

The DC connection is effected with MC4-plugs and sockets. Ensure that you use DC
connectors which are suitable for the particular cable diameter. If you use connectors
which are not suitable for the particular cable diameter, the protection class of the device
may fall below IP65.

Whenever it is switched on, inverter automatically checks the insulation of the PV
generator. If the insulation is defective, inverter switches off automatically. In this case, it
is absolutely mandatory that the insulation fault of the PV generator be repaired before the
PV generator is connected to inverter.

Be absolutely sure to verify proper polarity when connecting the PV strings. Any
inappropriate connection of individual strings may damage the module strings. The
inverter is protected by an integrated polarity reversal protection diode. Protect the
connectors such that they cannot be pulled off inadvertently.

Close unused connectors with plugs. If you fail to do this, the protection class of the
device may fall below IP65.

The connection has to be strictly done according to chapter 2.5 of the operating
instructions. By non-observance the dc-disconnector can be destroyed.
3.3 DC Connecting Line
Please note the following information (plug type, cross section) regarding the DC power cable.
Denomination
Connector plug
Connector plug
Connector socket
Connector socket
To attach the crimp contacts on the site, you might acquire the pliers, type PV-CZM -19100 by
MultiContact.
Note:
Copyright REFUsol GmbH
Type Item No.
MultiContact
PV-KST4/6I-UR 32.0015P0001
PV-KST4/6II-UR 32.0017P0001
PV-KBT4/6I-UR 32.0014P0001
PV-KBT4/6II-UR 32.0016P0001
In order to ensure the degree of protection IP65, plug connectors and power
supply connection cable must be matched to each other and all unused
connectors shall be fitted with blanking plugs. We suggest to use only original
components of MultiContact! Please take notice of the instruction sheet of
MultiContact!
Diameter wire insulation
in mm
3 -6
5,5 - 9
3 - 6
5,5 - 9
Cable cross section in
mm²
4 - 6
4 - 6
4 - 6
4 - 6
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