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8 Electrical Connection
8.8
Connecting the DC Distributor
8.8.1
Connection Area of the DC Distributor
Figure 34: Overview of the connection area
Position
Designation
A
X3: Connection cable to the battery cabinet DC-
X4: Connection cable to the battery cabinet DC+
B
X5: Connection cable to the battery inverter DC-
X6: Connection cable to the battery inverter DC+
8.8.2
Connecting the DC Distributor
1. Disconnect the inverter from voltage sources (see Section 11.1, page 119).
2. Disconnect the battery from voltage sources (see Section 11.2, page 121).
3. Thread the supplied DC cables from the battery cabinets and the DC cables from the battery inverter through the
cable glands provided on the bottom of the DC distributor.
4. If the DC cables are too long, shorten them.
5. Dismantle the DC cables and strip off the insulation.
6. Fit bootlace ferrules to the DC conductors.
7. Remove any cable remnants from the DC distributor.
8. Connect the DC cables from the battery cabinets to screw terminals X3 and X4. Ensure correct polarity.
9. Connect the DC cables from the battery inverter to screw terminals X5 and X6. Ensure correct polarity.
86
ESSX-20-SH-en-10
SMA Solar Technology AG
System Manual
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