6.2.3.1
Structure
The external energy meter can be placed in such a way that only the external consumers are measured
or that the total consumption (external consumers and the charging station) is measured. The subsequent
diagrams show the configuration structure for using the MENNEKES accessory set 18626 (Siemens
PAC1600 7KT1661 including current transformer).
Energy meter measures total consumption (standard setting)
Photovoltaic
Inverter
max 20 A /
max. 40 A
RCD
Typ A
30 mA
Consumers
Energy meter measures external consumers only
Photovoltaic
Inverter
RCD
Typ A
30 mA
Consumers
28
Wallbox
321
MCB
Modbus
Master
RCD
Typ A
30 mA
321
Modbus
Master
I1 I2 I3
Modbus
Satellite
Current
transformer
I1 I2 I3
Modbus
Satellite
Current
transformer
Wallbox
MCB
max 20 A /
max. 40 A
RCD
Typ A
30 mA
L1
L2
L3
N
PE
Configuration tool
required
L1
L2
L3
N
PE