Installation manual

Connecting the Conductors
153396 Revision D 3–13
This manual is for use by qualified installers only
PV Wiring to the DC Interface
To make the connections from the PV array to DC interface:
1. Open the door to the DC interface.
2. Route the PV array cables conductors POSitive (PV+) and NEGative (PV-)
through the conduit to the DC interface, entering on the underside.
3. The DC power conductor terminations are made at TB3, as well as TB4 and
TB5 (PV GND). See Figure 3-10 for the location of the terminals and Table 3-
1 for DC Terminal polarity for each Xantrex GT250 model.
4. Terminations for the POSitive, NEGative, ground conductors within the DC
interface are made using the 10 mm hardware.
5. Close the door to the DC interface.
Figure 3-10 PV Array Cable Routing and Terminations
Table 3-1 DC Terminal Polarity
Model TB3 TB4 TB5
Xantrex GT250 480 PV+ PV– PV GND
Xantrex GT250 480 PG PV– PV+ PV GND
Xantrex GT250 600 PV+ PV– PV GND
TB4
TB5 (PV GND)
TB3
TB4
TB5
(PV GND)