Can Class 2 and Class 3 conductors be run together?

Class 2 and Class 3 conductors can be run together following Class 3 wiring methods because these classes of conductors are designed to carry low voltage and have similar safety standards and limitations. The purpose of the configurations is to ensure that installations maintain their intended safety measures, especially in aspects such as current carrying capacity, insulation, and potential for interference.

In particular, Class 3 circuits offer more flexibility in installation than Class 2 because they can carry slightly higher power for devices like powered speakers or alarms, which makes it permissible to follow their wiring practices when the two classes are run together. It is essential to adhere to the installation methods that ensure both types of conductors receive adequate protection from short circuits and overcurrent situations.

This compatibility allows installers to streamline their wiring practices without compromising safety, provided they observe the details outlined in the National Electrical Code (NEC) and local regulations.