The charging cable is the means by which the station and vehicle are connected and consists of a mobile plug for the connection on the infrastructure side, a mobile socket for the vehicle side, a cable with adequate cross-section and polarity suitable for mobile use with particular resistance to the conditions of use.
Compared to case A (charging cable attached to the vehicle) and to case C (charging cable attached to the station) case B is the most versatile because it is possible to realise compatibility between the various standards present today in the world of international connections.