Which article discusses guidelines related to Motors, Motor Circuits, and Controllers?

The guidelines related to Motors, Motor Circuits, and Controllers are found in Article 430 of the National Electrical Code (NEC). This article is dedicated specifically to outlining the requirements for the installation, operation, and protection of electrical motors and their associated circuits and controllers.

Article 430 addresses essential factors such as the proper sizing of conductors and overcurrent protection devices, as well as the installation practices that ensure both safety and efficiency in motor operation. It also provides guidelines on performance criteria, including starting and running characteristics of motors, which are crucial for professionals who are involved in wiring, installing, or maintaining motor systems.

Other articles listed discuss different aspects of electrical systems. For instance, Article 440 pertains to hermetic refrigerant motor-compressors and their branch circuits and does not cover the broader spectrum of motors and motor circuits addressed in Article 430. Article 422 focuses on appliances, which may include motors but is not specifically tailored to motor circuits or controllers in general. Article 408 deals with switchboards and panelboards, which are vital for electrical distribution but again do not focus on motor applications like Article 430 does. Therefore, the correct choice is rooted in the comprehensive approach that Article 430 takes towards motors and their related components