The Type 2 charging cable harness is capable of adapting to different charging power levels. Multiple protection functions against overcurrent, overvoltage, and overheating are integrated within the harness. When abnormal increases in current and voltage or overheating of the temperature are detected during the charging process, the circuit will be automatically cut off immediately to prevent damage to the battery and the vehicle's electrical system, thus establishing an all-round safety defense line for the charging process of electric vehicles.