Dc Connection (From Pv Array) - Delta RPI-M8 User Manual

5.3 DC Connection (from PV Array)

WARNING!
 When undertaking DC wiring, please ensure the correct
 When undertaking DC wiring, please ensure that the power
CAUTION!
◆ The connection number of PV Array, open circuit voltage and
◆ The connection number of PV Array, open circuit voltage and
◆ The maximum open circuit voltage of PV Array cannot be
◆ The range of MPP Voltage of Input1 and Input2 shall be in
◆ The device installed between PV Array and inverter must meet
◆ The input power to the inverter should not higher than the
Type of limit
Total input power
Input1 or Input2
Type of limit
Total input power
Input1 or Input2
Model
M8
M10/ M12
M15A/ M20A
M15/ M20/ M30
polarities are connected.
switch on the PV array is OFF.
power of String_1 and String _2 must be coherent.
power of String _3 and String _4 must be coherent.
higher than 1000V.
350~800 Vdc.
the following specifications:
a.) Rated voltage > open-circuit voltage of PV Array.
b.) Rated current > short-circuit current of PV Array.
rated power shown in table 5-4.
Table 5-4 Maximum rating of input power
RPI-M8
8.8 kW
5.9 kW
RPI-M15A
16.5 kW
8.25 kW
Table 5-5 Cable size
Current Rating
DC 10A
DC 20A
DC 34A
DC 34A
RPI-M10 RPI-M12
11 kW 13.2 kW
7.4 kW 8.8 kW
RPI-M20 RPI-M20A
22 kW 22 kW
11 kW 11 kW
Wire size
2
2 - 3mm / 14 AWG
2
3 - 5mm / 12 AWG
2
5 - 6mm / 10 AWG
2
5 - 6mm / 10 AWG
RPI-M15
16.5 kW
8.25 kW
RPI-M30
32 kW
16 kW
Temperature
Meet UL 10070
Meet UL 10070
Meet UL 10070
Meet UL 10070
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