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Operating Instructions 10/2020 2010045v10
6.3 Conductor and cable cross-section
The cross-section of the earthing conductor depends, among other things, on its length and the type of
installation. It is therefore necessary that this is determined and specified by the electrician commissioned by
you.
The maximum cross-section is 4x16 mm². The maximum diameter of the mains cable is 21 mm.
6.4 Setting up the charging station
6.4.1 Prerequisite
The set-up phase includes all work required to prepare the site and get it ready for the installation and
connection of the DC wallbox. The installation phase can begin as soon as:
• All necessary permits have been granted.
• The wall preparations have been made.
• The mains connection is available.
6.4.2 Mains-side voltage and power supply
The connection conditions listed below must be observed and technically executed on site by qualified and
trained specialist personnel.
Version
Max. current
Total input current
Mains-side fuse
protection
Cross-section
DC output 22 kW
variant
40 A 40 A
3 x 63 A gG Fuse
RCD circuit breaker type
4 x 16mm²
DC output 30 kW
variant
63 A 63 A
RCD circuit breaker type
4 x 16mm²
The cross-section of the cable core must be determined by your contractual partner / electrical installer.
The maximum outer diameter is 21mm.
The protective conductor of the mains cable must have the same diameter as the phase conductors.
For three-phase four-wire networks, 380 VAC-415 VAC, type B disconnectors with 30 mA must be installed,
the rated current of the disconnector is 50 A
External RCDs are not included in the scope of delivery
Upstream RCDs are expressly excluded from the scope of delivery and must be
provided by the installer.
6.4.3 Internet connection
The preferred method of communication is to use a 4G wireless modem integrated into the charging station.
If no wireless signal is available, OCPP requires a wired internet connection. Please contact the Kostad
Support Team for a specific configuration.
If the separate Internet connection is not used, please ensure that the cable entry opening is closed to
ensure the IP54 protection rating of the cabinet.
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