Technical data

Chapter 3 Installation
18
DC input Signal port AC output and ground
3.3 Electrical installation
Inverter cable terminals of CPS SC20KTL-DO/US-480
are shown in Figure 3-9:
Figure 3-9 Inverter cable terminals
The 5 ports on the left are for DC input, AC output and
ground connections, matching the 1¼ & 1
½ inch diagram of
steel conduits; The last port on the right is for communication,
matching the ½ & ¾ inch diagram of steel conduits.
3.3.1 DC connection
(1) To ensure the optimal performance of the inverter,
please read the following guidelines before DC connection:
(a) First, make sure that the maximum open circuit
voltage of the PV modules is lower than 600Vdc
CAUTION:
Steel conduits as the cable protector need to be prepared by
the customers before installation.