A feeder is defined as all circuit conductors between which two points?

• A. All Circuit Conductors Between the Service Equipment, the Source of a Separately Derived System, or Other Power Supply Source and the Final Branch Circuit Overcurrent Device
• B. Between the Service Disconnect and the Main Breaker Only
• C. Between the Utility Meter and the Service Panel
• D. Between the Transformer and the Main Bus

Answer: (A)

Feeder conductors are the power-carrying lines that run from the power source to the point where branch-circuit protection begins. In practice, this means all conductors from the service equipment (or from another power source such as a transformer, generator, or other source) up to the final overcurrent device that protects the last branch circuit. That final overcurrent device is typically the main breaker in a panel or the first protective device in a subpanel, and it marks where the feeder ends. This definition distinguishes feeders from service conductors (which run from the utility to the service equipment) and from wiring beyond the final protective device. So the best description includes all conductors from the source to that final branch-circuit overcurrent device, covering feeding a distribution panel, a subpanel, or a separately derived system.