The IEC 61439 series is the international standard governing , replacing the older IEC 60439 series. The standard is currently in its third edition (released in 2020) and is essential for ensuring the safety and reliability of electrical panels in industrial and commercial environments. Core Structure of Parts 1 and 2
The full text of and IEC 61439-2 is protected by copyright and is primarily available for purchase through the IEC Webstore . These standards define the requirements for low-voltage switchgear and controlgear assemblies. Accessing the Full Text and Previews iec 614391 and 2 pdf
IEC 61439-2 is the part of the standard that deals with low-voltage switchgear and controlgear assemblies - Part 2: Power distribution units (PDUs). This section provides specific requirements for the design, construction, and testing of power distribution units (PDUs), which are used to distribute power to various loads in a low-voltage power distribution system. Device Ratings: Rated voltage (Ue), current (Ina), and
Rated voltage (Ue), current (Ina), and short-circuit levels (Icc). Device Ratings: Rated voltage (Ue)
Instead of testing every single panel (type testing), manufacturers now perform design verifications via:
In the US, ANSI; in the UK, BSI (which publishes as BS EN 61439-1/2); in Germany, DIN/VDE. These sell the identical IEC content in PDF format, sometimes with a national foreword.
💡 Part 1 contains the General Rules used by all other parts, while Part 2 adds Specific Requirements for power switchgear. You usually need both to be fully compliant. If you'd like, I can help you with: Explaining Design Verification vs. Routine Verification Finding specific IP rating requirements Understanding the Rated Diversity Factor (RDF) calculations AI responses may include mistakes. Learn more