What distinguishes an individual branch circuit?

An individual branch circuit is specifically defined as a circuit that supplies energy to only one utilization equipment or a specific device. This distinct characteristic ensures that the power requirements and operational demands of that single piece of equipment are met without the influence of any other devices. This setup can be crucial in applications where certain equipment requires stable voltage levels, reduced electrical noise, or specific overcurrent protection.

The other options do not fit the definition of an individual branch circuit. A branch circuit supplying multiple outlets represents a general-purpose circuit that serves several devices, which is not in alignment with the idea of an individual circuit. Similarly, a multiwire configuration involves sharing a neutral conductor among multiple circuits, further differentiating it from an individual branch circuit. Lastly, a circuit dedicated to powering lights only also implies that it serves multiple fixtures or devices within the lighting category instead of focusing on a singular utilization equipment, which again contrasts with the individual branch circuit definition.