Fill in the blank

A branch circuit overcurrent device is a device capable of providing protection for ________, _________, and branch circuits and equipment over the full range of overcurrents between its rated current and its interrupting rating. Branch circuit overcurrent protective devices are provided with interrupting ratings appropriate for the intended use, but no less than 5,000A.

  1. overloads, underloads
  2. service, feeder
  3. taps, conductors
  4. auxiliary gutters, wireways

Answer: B

The definition of a branch circuit overcurrent device is outlined in Art. 100 as follows: "A branch circuit overcurrent device is a device capable of providing protection for service, feeder, and branch circuits and equipment over the full range of overcurrents between its rated current and its interrupting rating. Branch circuit overcurrent protective devices are provided with interrupting ratings appropriate for the intended use, but no less than 5,000A."

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at necexpert@aol.com.