What is the typical voltage range found in residential electrical systems?

Residential electrical systems in North America typically operate within a voltage range of 120/240 volts. This configuration is designed to supply standard household appliances and general electrical needs effectively. The 120 volts is commonly used for smaller appliances, lighting, and outlets, while 240 volts is utilized for larger appliances like dryers and ovens, which require more power.

This dual-voltage system allows for flexibility and efficiency in energy use, enabling households to safely and adequately power a variety of devices without overloading the circuits. Understanding this range is vital for troubleshooting, upgrading systems, or when planning for electrical installations in homes.

Other voltage ranges mentioned, such as 240/480 volts, are more typical in industrial or commercial settings rather than residential applications. Similarly, the single 120 volts and 220 volts references do not accurately encapsulate the typical supply seen in most residential environments.