Huawei SCharger-7KS-S0 User Manual page 13

The following cables comply with the IEC 60446 standard. Cable colours may vary according to different regions.
Connect power cables based on the actual phase condition.
TN and TT systems are configured with neutral conductors. IT systems do not have neutral conductors.
The SCharger-7KS-S0 supports TN&TT 1-phase and IT 1-phase.
The SCharger-22KT-S0 supports TN&TT 3-phase, TN&TT 1-phase, and IT 1-phase.
TN&TT 1-phase
230V
PE N L1
TN&TT 3-phase
400V
230V
PE N L3 L2 L1
For a TT system, connect cables by referring to the
TN system cabling imprint on the rear cover.
L1
L2
230V L3
N
PE
L1
L2
230V
L3
230V
N
PE
11
IT 1-phase
230V
PE L3 L1
L1
L3
PE