Which article would you refer to for guidelines on industrial control panels?

The reference to Article 409 in the National Electrical Code (NEC) is accurate for guidelines on industrial control panels. This article specifically focuses on the requirements for the construction, installation, and use of industrial control panels, which encompass assemblies of various components designed to control the operation of machinery and other electrical systems.

Article 409 outlines important safety considerations, including wiring methods, type of materials allowed, grounding requirements, and labeling for industrial control panels. This ensures safe operation and conformity to nationally recognized standards. Its details are crucial for anyone involved in the design, installation, or maintenance of industrial control systems to ensure compliance with safety regulations.

In contrast, the other articles mentioned address different aspects of electrical systems. Article 408 deals with the requirements for panelboards. Article 410 pertains to luminaires and decorative lighting; while Article 430 is focused on motors and motor branch circuits. Each of these sections has its specific application and does not cover the particularities of industrial control panel construction and operation as Article 409 does.