How much voltage is required for ac?

The voltage required for alternating current (AC) can vary widely depending on the application and region. Common household AC voltage levels include 120 volts in North America and 230 volts in many other parts of the world. For industrial applications, voltages can be significantly higher, often ranging from 400 to 480 volts. Ultimately, the required voltage is determined by the specific electrical system and equipment being used.