The transition to IEC 61439 introduced several critical shifts in how assemblies are designed and verified:
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 iec 614391 and 2 pdf
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. The transition to IEC 61439 introduced several critical
The is the international "gold standard" for the safety, reliability, and performance of low-voltage switchgear and controlgear assemblies . It replaced the older IEC 60439 series to provide a more rigorous framework for verifying that electrical panels can withstand real-world electrical and environmental stresses. Core Components: Part 1 and Part 2 Core Components: Part 1 and Part 2 To
To fully comply with modern requirements for industrial or commercial switchboards, you must use and IEC 61439-2 together.
Understanding IEC 61439-1 and 61439-2 for Low-Voltage Assemblies
