Your electrical connection consists of one or three phases.
Single-phase charging uses one phase. You can then draw less power from your connection.
Three-phase charging uses three phases. At the same current, you can get up to three times more power, so you charge faster.
Whether you can actually charge on three phases depends on your connection, your charging station and your car. If your car has a single-phase on-board charger, it will also charge on a single phase at a three-phase charging station.
Want to know which connection you have? See the article 'How do I know whether my electrical connection is single-phase or three-phase?'.
Keywords:
single-phase three-phase | one phase three phases | home charging power | 1-phase 3-phase | charging station connection | on-board charger