United States Plugs, Sockets & Voltage: Do You Need an Adapter?
Official national electrical standards, wall socket pin configurations, standard voltage (120V), and appliance safety rules for visitors to United States.
Quick Answer: What Plug Type Does United States Use?
In United States, power outlets strictly utilize Type A, Type B wall sockets operating at a standard domestic supply voltage of 120V and an alternating frequency of 60Hz. Visitors from foreign plug standards require a physical travel adapter, while dual-voltage appliances operate safely without voltage transformers.