The electrical pressure that pushes electricity through a circuit — like water pressure in a pipe.
The electrical potential difference between two points in a circuit, measured in volts (V), that drives the flow of current. Common voltage levels in the US include 120V (residential outlets), 240V (heavy appliances), 480V (commercial), and higher for distribution. Voltage determines equipment compatibility and wiring requirements.
The CNC machine required a dedicated 480V, 3-phase circuit rather than the standard 120/240V available at the panel.
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