Xantrex Technology GT5.0-NA Grounding Requirements, Wiring the Inverter

3 Wiring the Inverter

Chapter 3 provides information about DC and AC wiring, and grounding the GT Inverter and the PV array.

This chapter does not provide sufficient information for anyone but a qualified installer to install this product. Installers should be electricians or technicians fully educated on the hazards of installing electrical equipment.

Grounding Requirements

AC Grounding	The GT Inverter must be connected to the AC ground from the utility via the GT
	Inverter ground bar.
PV Grounding	The PV array (frame) ground should be connected to the GT Inverter ground bar.
	The size for the conductor is usually based on the size of the largest conductor in
	the DC system.
	A DC grounding electrode conductor may be required by the Authority Having
	Jurisdiction (AHJ). Use the GT Inverter ground bar for this connection (see
	Figure 3-2 on page 3–3).

CAUTION: Equipment damage

Provide adequate clearance for grounding wires inside the GT Inverter wiring box. Ensure that the bare copper grounding wire is more than ½ inch clear of the DC/AC interconnect circuit board.

Two ¼-inch (7 mm) knockouts in the bottom of the wiring box are intended for routing the ground conductors to the ground bar. See Figure 3-1.