Xantrex Technology SW Plus 4024 - Manual (Page 98)

Installation
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Single Inverter To ground a single inverter:
1. Connect the ground bond in the DC disconnect to the primary
grounding electrode, in accordance with local and national electrical
codes.
2. Connect the NEGATIVE (–) terminal of the battery bank to the
ground bond inside the DC disconnect.
3. Connect an appropriately sized GROUND wire from the Chassis
Bonding Lug on the inverter DC end to the ground bond inside the
DC disconnect.
Figure 3-7 DC Grounding of a Single Inverter