Ac Grid Connection: 3-Phase+Pe Or 3-Phase+N+Pe; Required Protective Devices And Cable Cross-Sections - Delta RPI-M8 User 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

It is recommended to install upstream circuit breakers between AC side and
inverter side for over current protection.
Model
RPI-M8
RPI-M10
RPI-M12
RPI-M15
RPI-M15A
RPI-M20
RPI-M20A
RPI-M30
G N L1
The AC cable must be jacked and meet the specification in table 5-2.
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
Wire size
40 A
60 A 10 mm
Upstream circuit breaker
20A
20A
30A
30A
30A
40A
40A
60A
L3
L2
To solar inverter AC
L1
N
PE
Torque
2
5 - 8 mm 0.7 N m Meet UL 10070
2
or 6 AWG
3 N m
plug
Temperature
Meet UL 10070
20