Electrical connecting device and charging cable for an electric vehicle

An electrical connecting device for a charging cable for charging an electric vehicle, the electrical connecting device comprising:

• a supply system-end first connecting device to electrically connecting the electrical connecting device to an electrical power supply system;
• and
• a charging cable-end second connecting device to electrically connecting the electrical connecting device to a supply system-end plug of the charging cable,
• the supply system-end first connecting device including at least two contact elements, each electrically conductively connected to one of at least two contact elements of the charging cable-end second connecting device,
• the supply system-end first connecting device including a first temperature sensor for temperature monitoring purposes,
• the first temperature sensor being electrically connected to the charging cable-end second connecting device via a communications line,
• the charging cable-end second connecting device including a further contact, electrically conductively connectable to a corresponding further contact of the supply system-end plug of the charging cable, to be configured to transmit a signal from the temperature sensor to the charging cable.