Ac Grid Connection: 3P3W+Pe Or 3P4W+Pe; Required Protective Devices And Cable Cross-Sections - Delta RPI-M8 Manual

5.2 AC Grid Connection: 3-Phase+PE or 3-Phase+N+PE
WARNING! Death and serious injuries may occur.
!
Before AC wiring, please ensure AC breaker is switched off.

5.2.1 Required Protective Devices and Cable Cross-sections

Please use proper upstream circuit breaker to protect the inverter.
Model
RPI-M8
RPI-M10
RPI-M12
RPI-M15
RPI-M15A
RPI-M20
RPI-M20A
RPI-M30
G N L1
Please use proper wire to connect correct poles. User can refer to the following
table to select the appropriate wire.
Model Current Rating
RPI-M8
RPI-M10
RPI-M12
RPI-M15
RPI-M15A
RPI-M20
RPI-M20A
RPI-M30
Table 5-1 Recommended upstream protection
L2 L3
Table 5-2 Wire size of AC input
40 A
60 A
Upstream circuit breaker
20A
20A
30A
30A
30A
40A
40A
60A
L3
L2
To solar inverter AC
L1
N
PE
Wire size Torque
2
5 - 8 mm 0.7 N m
2
16 mm 0.9 N m
plug
Temperature
Meet UL 10070
Meet UL 10070
19