12
2.0 INSTALLATION
©2000 Xantrex/Trace Engineering
Figure 9
PV Array DC Connection Points (ST1500 and ST2500)
Wiring:
(continued)
Wire Size
Torque (in-lb)
14 -10 AWG
35
8 AWG
40
4 - 6 AWG
45
2 - 1/0 AWG
50
975-000-003
6.
Repeat this procedure for each PV array circuit, connecting the #2 PV Negative wire to the
terminal labeled PV INPUT 2 NEGATIVE, etc.
NOTE: The solar arrays do not have to connect in the order marked on the board (this is just for
reference). All solar array negatives on the combiner board are electrically tied together.
7.
Torque wires according to the following table.
Table 4
Wire Torque Values
PV array wiring
(note polarity)
DC conduit wiring
(from solar arrays)
