Xantrex Technology GT3.0 Replacing the Inverter, 1Location of Fuse, Front Panel Cover Removed

Replacing Parts

Ground Fault	LCD
Protection Fuse

Figure 6-1Location of Fuse, Front Panel Cover Removed

Replacing the Inverter

You can swap out the inverter and replace it with another GT Inverter, leaving the existing wiring box in place. This means that you do not have to disturb wiring connections in the wiring box. However, you do have to disconnect wiring between the inverter and the wiring box.

WARNING: Shock hazard

Separating the inverter from the wiring box breaks the ground path between PV NEGATIVE (–) and earth ground. When the wires between the inverter and wiring box are disconnected and exposed, both PV leads are floating at the array open circuit voltage. If there is leakage current from the POSITIVE PV lead to ground at the array, touching the NEGATIVE PV lead could cause a life-threatening shock even with the disconnect switch turned off. Ungrounded negative DC current on the PV NEGATIVE (–) wire presents an extreme shock hazard.

Use insulated tools only when disconnecting wires between the inverter and wiring box. Cap all disconnected wires with wire nuts.

If possible, cover PV arrays with an opaque material during this procedure.

975-0131-01-01 6–5