SC Fire Alarm Practice Questions - South Carolina Fire Alarm Contractor Examination Exam

Under NEC 2020 Article 760, a power-limited fire alarm (PLFA) circuit is one that is powered by which type of source?

Any 120-volt branch circuit without further limitation A listed power supply with output limited in accordance with Chapter 9, Tables 12(A) and 12(B) A non-power-limited source operating at not more than 600 volts An unlisted Class 1 transformer

Correct Answer:

A listed power supply with output limited in accordance with Chapter 9, Tables 12(A) and 12(B)

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