What is the standard voltage for most residential circuits?

The standard voltage for most residential circuits in the United States is 120 volts. This voltage is commonly found in typical household outlets and powers standard appliances, lights, and other electrical devices. Residential circuits are designed to operate effectively at this voltage, ensuring safety and compatibility with a wide range of household gadgets.

In contrast, 240 volts is used for heavier appliances such as dryers and ovens, which require more power to function effectively. The lower voltage options of 30 volts and 48 volts are not standard for residential wiring; they may be found in specialized applications, but they are not suitable for regular household use. Understanding the standard voltage helps ensure correct appliance selection and safe installation in a residential setting.