Chint Power CPS SCA20KTL-DO Installation And Operation Manual page 46

The voltage and current rating of the dry contact shown in the following
table must not be exceeded in any case.
AC
DC
Different modes of dry contact output can be accessed by connecting
different pins of the P205 connector, as shown in following table.
Dry contact communication
port
P205: N.O. — COM
P205: N.C. — COM
Connection Plan:
You can connect a LED or other loads to indicate the operational status of
the inverter, as shown in the following figure:
Figure 3-35 Dry contact communication port
Table 3-10 Rating of dry contact
Voltage
Maximum 277 V
Maximum 30 V
Table 3-11 Working modes of dry contact
N.O. N.C. COM
Maximum 3 A
Maximum 1 A
Status in fault
condition
Closed
Open
42
Current
Status without fault
condition
Open
Closed