What Exactly is an Industrial Control Panel?
Industrial control panels, as defined by NEC section 409.2, are assemblies comprising two or more power circuit components, control circuit components, or a combination of both. These panels operate at less than 600V and include power circuits and/or control circuits.
A control circuit is responsible for providing the signals that direct the performance of the controlled equipment, but it does not carry the main power nor does it include the controlled equipment itself. The term “panel” indicates that the control system is mounted on or within an enclosure or subpanel.