Yes, you can use a three-phase EV charging cable in a single-phase charging box, but the charging speed will be limited to the capabilities of the single-phase system. The cable will simply use one of the three phases for power transmission, while the other two remain inactive. This setup is electrically safe and commonly supported by both EVs and charging stations, provided that the connectors and standards (typically Type 2 in Europe) are compatible.
From a technical perspective, a three-phase charging cable—such as a Voldt® 22 kW Type 2 kabel—is built to handle up to 32A per phase across three phases, giving a maximum of 22 kW charging capacity. When connected to a single-phase outlet or wallbox, however, the power is limited to just one phase. This means you’ll get a maximum of 7.4 kW (32A x 230V) if the installation supports it. The cable’s internal wiring and pins will safely carry the single-phase load, as they are designed to support higher loads across more conductors.
It's also important to consider that while the cable itself is compatible, your EV and the onboard charger must also support charging over a single phase. Most European EVs do, but some older or imported models might have limitations. Additionally, the wallbox must be designed to signal correctly over a Type 2 interface and must comply with standard communication protocols (IEC 61851). If all devices in the chain are compliant and properly installed, you can use a three-phase cable in a single-phase environment without any issues.
