11
It is mandatory to install a circuit breaker with C or B curve, 40A, before the charger
input. If there are uncertainties about how to choose the appropriate short-circuit protection
device, please contact the manufacturer.
6.4
Installation of the protection against residual current
In compliancy with the IEC 61851-1 standard, the charger contains an appropriate circuit that
ensures the disconnection of the supply in case of DC fault current above 6mA (DC Leak
protection circuit).
No external installation of any type B RCD is prescribed.
An external type A RCD, with supply disconnection in case of DC fault current above
30mA shall be installed in the upstream side.
The protection device selection and installation must be performed by qualified
personnel only.
6.5
Overvoltage protection
The charger is compliant to the Overvoltage Category III
6.6
Installation cables
The cable for connecting the mains supply to the charger must have a section in the following
range 6-10 mm2.
The cable selection must be done by the qualified personnel involved in the installation
process, taking into account the national regulations for the safety and the state of the art of
the electrical installations.
6.7
Supported power supply systems
Both single-phase and three-phase chargers support the following power supply systems.
▪
TN-S
▪
TN-C
▪
TN-C-S
▪
TT
▪
IT (only single-phase products are supported)
For single-phase charger, in a power supply system with a neutral line, the voltage between the
phase line and the neutral line cannot be higher than the rated voltage requirement (240VAC).