Idaho Low Voltage Practice Questions - Idaho Low Voltage Practice Route Exam

According to NEC Article 725, what distinguishes a Class 2 circuit from a Class 3 circuit?

Class 2 is for outdoor use only Class 2 has lower voltage and power limits than Class 3 Class 3 is only for fire alarm systems There is no difference between Class 2 and Class 3

Correct Answer:

Class 2 has lower voltage and power limits than Class 3

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