Driving eMobility
7/18
Installation manual
4. Position and fix the empty conduit in the correct pla-
ce. The distances between the empty conduits are
shown in Figure 5: Foundation plate - top view.
5. Pour out the excavation pit so that you obtain an
even mounting surface.
4 ELECTRICAL CONNECTION
4.1 Conditions for the electrical connection
Specifications for the sub-distribution:
• Each charging point must have its own supply line
with appropriate fuse protection.
• All versions of the wallbe Pro require a suitable cir-
cuit breaker and residual current circuit breaker.
• All variants of the wallbe Pro require a suitable re-
sidual current circuit breaker. Since the wallbe Pro
already has a DC fault detection > 6 mA, you do not
need a cost-intensive RCD type A (EV) or type B.
• If possible, use an overvoltage protection in the
sub-distribution.
Usable cable cross-sections:
• Use the cable cross-sections given in the table. If you
require larger cable cross-sections, please specify
them when ordering or contact us.
• When using a rigid cable, a maximum cross-section
of 10 mm² is possible with the wallbe Pro, 22 kW,
while only 6 mm² is possible with a flexible cable.
Terminal assignment X1 for supply cable, cable cross sections and fuse
protection
Performance class
3,7 kW,
16 A
4,6 kW,
20 A
7,4 kW,
16 A
Conductor
Number
Color
L
1
brown or
black
brown or
black
brown or
black
N
2
blue
blue
blue
PE
3
green/yel-
low
green/yel-
low
green/yel-
low
Supply cable
NYM-J
3x 2,5 mm²
NYM-J
3x 2,5 mm²
NYM-J
3x 6 mm²
Circuit breaker
C 16 A,
1-pole
C 20 A,
1-pole
C 32 A,
1-pole
RCD in sub-distribution
Type A
0,03 A/ 25 A
Type A
0,03 A/ 25 A
Type A
0,03 A/ 40 A
Terminal assignment X2 for firmly attached charging cable
Performance class
3,7 kW,
16 A
4,6 kW,
20 A
7,4 kW,
16 A
Conduc-
tor
Number
Color
L
1
brown or
black
brown or
black
brown
or black
N
2
blue
blue
blue
PE
3
green/
yellow
green/
yellow
green/
yellow
CP
4
black/
white
black/
white
black/
white
Terminal assignment X1 for supply cable, cable cross sections and fuse
protection
Performance class
11 kW, 3x 16 A
22 kW, 3x 32 A
Conductor
Number
Color
L1
1
brown
brown
L2
2
black
black
L3
3
grey
grey
N
4
blue
blue
PE
5
green/yellow
green/yellow
Supply cable
NYM-J
5x 2,5 mm²
NYM-J
5x 6 mm²
Circuit breaker
C 16 A, 3-pole
C 32 A, 3-pole
RCD in sub-dis-
tribution
Type A
0,03 A/ 25 A
Type A
0,03 A/ 40 A
Terminal assignment X2 for firmly attached charging cable
Performance class
11 kW, 3x 16 A
22 kW, 3x 32 A
Conductor
Number
Color
L1
1
brown
brown
L2
2
black
black
L3
3
grey
grey
N
4
blue
blue
PE
5
green/yellow
green/yellow
CP
6
black/white
black/white
