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A residential bedroom requires an AFCI for the 15A branch circuit. What is the minimum ampacity of the AFCI required?

Texas Master exam practice question · Wiring Methods

A residential bedroom requires an AFCI for the 15A branch circuit. What is the minimum ampacity of the AFCI required?

  • 15A
  • B20A
  • C30A
  • D40A

Exam tip

Always select an AFCI that is rated for the specific ampacity of the branch circuit, as specified in NEC Article 210.12(A).

Why A is correct

According to 2026 NEC Article 210.12(A), an AFCI for a 15A branch circuit must be rated at 15A. The other options are incorrect as they do not meet the minimum ampacity requirement for the AFCI in this application.

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