4.3 AC Grid Connection: 3-Phase+PE or 3-Phase+N+PE
WARNING！
Before commencing AC wiring, please ensure AC breaker is switched off.
4.3.1. Required Protective Devices and Cable Cross-sections
It is recommended to install an upstream circuit breaker between AC side
and inverter side for over current protection.
The AC cable must be jacketed and meet the specifications in table 4-3.
If there is any conflict between table 4-3's specification and local electrical
code, please follow the electrical code.
RPI M30A and M50A support both 3P3W (3phase and PE) and 3P4W
(3phase, N and PE) connections.
* For M30A model,
End sleeve is not able to be installed if 25mm
2
or 4AWG is applied.
* For M50A models,
End sleeve for each wire is necessary if 25mm
2
or 3AWG is applied.
End sleeve is not able to be installed if 1AWG is applied.
Model Upstream circuit breaker
RPI M30A
RPI M50A 100A
60A
Model Current Rating Recommended TorqueWire Size* Cable size
65 A
100 A
RPI M30A
RPI M50A 3 N.m
2.5 N.m
G N L1 L3L2
N
L1
L2
L3
PE
To solar inverter
AC plug
Table 4-2 Recommended upstream protection
Table 4-3 AC input cable requirement
25-38mm
2
3-1AWG
16mm
2
6-4AWG
37-44mm
23-31mm
Wiring
31
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