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5.5 SPH System electrical connection
Decisive Voltage Class (DVC) indicated for ports
Port Name
AC
DC
DRMS
RS485&RS232
Class
C
C
A
A
The inverter shall be used with IEC 61730 Class A rating
PV module.
Please use the same brand male and female PV
connectors.
5.5.1
Connection of PV terminal
Similar to the traditional inverter connecting, the input of PV panel energy can be
realized by using MC4 PV terminal, the detail steps are as follows
：
1.Turn off PV switch.
2.Insert PV panel positive and negative cables into MC4 terminal
，
then connect
positive pole(+) of connection cable to positive pole(+) of PV input connector,
connect negative pole(-) of connection cable to negative pole(-)of PV input
connector, please pay attention to PV input voltage and current within permission
Limit:
Max PV voltage
：
550V (consider the lowest temperature)
Max PV input current: 12A
Max PV input power per string: 4000W.
Remark: 1.We suggest you use the cable
≥
4mm2/12 AWG to connect.
2.Please do not connect to DC source!
5.5.2 Connection of AC terminal and off grid terminal
SPH has a grid output terminal and off grid out terminal,look down on the SPH from
the front,the terminal on the right (on grid) is grid outlet for connecting grid,the
terminal on the left is an uninterrupted power outlet for connecting critical load.
Chart 5.11
Chart 5.12
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