Copyright CPS America Co., Ltd. Page 49
OFF OFF OFF
208Y/120-V
L1 L2 N G
XKW
208Y/120-V
Note: The neutral conductor is required to be the same gauge as the phase
conductors.
Configuration for the AC Wiring:
A)
After the DC wiring connection is finished, start to dash an open hole for
the AC cables, insert the conduit, and tighten with the conduit gland.
Figure 7.2.3: Insert a conduit through an open hole
B)
Ensure the AC utility system is compatible with CPS grid-tied PV
Inverter. Confirm the specific kind of utility system being used, and then
select the corresponding setting of utility configuration DIP switch as per
the instructions in Table 7.2.1 before the procedures for AC connection.
C) Use a multi-meter to measure the AC voltage from the combiner box for
AC utility. It is important to confirm the configuration of AC utility
matches with that of the utility configuration DIP switch.
D) Refer to the information in the table 310.16 of the National Electrical
Code (NEC), and select the proper size of AC cables for the Position 1
pole / Position 2 pole / Position 3 pole. Refer to the column 2 of table
18.1 in the UL1741 electrical code, and select the proper size of ground
cable for the AC terminal.
