Delta M30A 230 - AC Grid Types and Connections; Required Protective Devices for AC; AC Wiring Preparation Steps

3.3.1 AC Grid Types and Connections
The default AC Grid connection is 3Ø-3W. It can also connect 3Ø-4W with Neutral (N).
The inverter will operate from the following grid connections without need of an
external transformer:
ATTENTION
3.3.2 Required Protective Devices
It is recommended to install an upstream circuit breaker between AC side and
inverter side for over current protection.
3.3.3 AC Wiring Preparation
Model Upstream circuit breaker
M30A_230 60A max.
Size of each wire Cable diameter
13.3~25 mm² (6~4 AWG) 23~31 mm
The AC wires must be jacketed and meet the specifications in Table 3-2.
If there is any conflict with local electrical code, please follow the electrical code.
TNC system
220/380V, 230/400V
M30A_230
M30A_230
M30A_230
M30A_230
L1
L2
L3
PE/N
TNC-S system
220/380V, 230/400V
L1
L2
L3
N
PE
TT system
220/380V, 230/400V
L1
L2
L3
N
IT system
220/380V, 230/400V
L1
L2
L3
TNS system
220/380V, 230/400V
L1
L2
L3
N
PE
M30A_230
Table 3-2: AC wires requirement
Table 3-1: Recommended upstream protection
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Installation