30 Installation of the Wallbox eM4Single
DANGER
Dangerous electrical currents
The electronic components of your wallbox will be damaged if a voltage above 250V is applied between the L1 current-carrying
conductor and neutral!
Phase rotation within a charging group
To avoid a phase imbalance, the phase rotation must be adjusted according to the following diagram during the electrical installation
of the Wallbox eM4Single:
Wiring diagram
Wallbox 1, 4, 7 etc.
Wiring diagram
Wallbox 2, 5, 8 etc.
Wiring diagram
Wallbox 3, 6, 9 etc.
L1 L2 L3 N
L1 L2 L3 N
L1 L2 L3 N
L2 L3 L1 N
L1 L2 L3 N
L3 L1 L2 N PEPE
PE
#1
#4 L1 L2 L3
L1
L2
L3
eM4 Single
#5
#6
#7
…
eM4 Single
eM4 Single
eM4 Single
L1 L2 L3
L1 L2 L3
L1 L2 L3
#9
eM4 Single
L1 L2 L3#8
eM4 Single L1 L2 L3
#10 eM4 Single L1 L2 L3
L1 L2 L3
L2
L3
L1
L2 L3
L1 L2
L3 L1
L3 L1 L2
L2 L3 L1
L1 L2 L3 N
L2 L3 L1 N
PE
#2
#1
#4 L1 L2 L3
L1
L2
L3
eM4 Single
#5
#6
#7
…
eM4 Single
eM4 Single
eM4 Single
L1 L2 L3
L1 L2 L3
L1 L2 L3
#9
eM4 Single
L1 L2 L3#8
eM4 Single L1 L2 L3
#10 eM4 Single L1 L2 L3
L1 L2 L3
L2
L3
L1
L2 L3
L1 L2
L3 L1
L3 L1 L2
L2 L3 L1
L1 L2 L3 N
L2 L3 L1 N
PE
#2
#1
#4 L1 L2 L3
L1
L2
L3
eM4 Single
#5
#6
#7
…
eM4 Single
eM4 Single
eM4 Single
L1 L2 L3
L1 L2 L3
L1 L2 L3
#9
eM4 Single
L1 L2 L3#8
eM4 Single L1 L2 L3
#10 eM4 Single L1 L2 L3
L1 L2 L3
L2
L3
L1
L2 L3
L1 L2
L3 L1
L3 L1 L2
L2 L3 L1
Wallbox eM4Single – 1 eM4Single – 2 eM4Single – 3
Terminal block L1 L2 L3 N PE L1 L2 L3 N PE L1 L2 L3 N PE
Supply L1 L2 L3 N PE L2 L3 L1 N PE L3 L1 L2 N PE
Wallbox eM4Single – 4 eM4Single – 5 eM4Single – 6
Terminal block L1 L2 L3 N PE L1 L2 L3 N PE L1 L2 L3 N PE
Supply L1 L2 L3 N PE L2 L3 L1 N PE L3 L1 L2 N PE
Wallbox eM4Single – 7 eM4Single – 8 eM4Single – 9
Terminal block L1 L2 L3 N PE L1 L2 L3 N PE L1 L2 L3 N PE
Supply L1 L2 L3 N PE L2 L3 L1 N PE L3 L1 L2 N PE
…
NOTE
Phase rotation in a single-phase mains system
The connection diagram shown above applies to 3-phase mains systems. If you are using a single-phase mains system, the L1
supply cable must always be connected in each wallbox!
Data cable connections
In group installations, the Controller wallbox controls the Extender charge points. The Controller wallbox then centrally configures and
controls all communication within the charging group, connection to a backend, charge current distribution, and many other functions.
For wiring up, the internal LAN interfaces of the Controller and Extender variants must be connected in a star configuration using data
cables (see “Data cable recommendations” onpage61).