Iec 614391 And 2 Pdf Official

This is the specific product standard for industrial and commercial distribution boards, motor control centers (MCCs), and panelboards. It defines the exact assembly rules and specialized requirements for these types of equipment. Key Changes from IEC 60439

This is not a standalone product standard. It provides the definitions, service conditions, and technical characteristics (like voltage and current ratings) that all other parts of the series refer to.

To fully comply with modern requirements for industrial or commercial switchboards, you must use and IEC 61439-2 together.