Introduction For electrical engineers, panel builders, and maintenance professionals, the standard IEC 61439 is the definitive benchmark for low-voltage switchgear and controlgear assemblies. However, a common and highly specific search query— "iec 614391 and 2 pdf" (often a typographical compression of "IEC 61439-1 and 2 PDF")—reveals a critical need: users want the complete set of the two foundational parts of this standard in a portable document format.
But why are Parts 1 and 2 always grouped together? Simply put, you cannot fully understand or comply with Part 2 without Part 1. This article will dissect both standards, explain their symbiotic relationship, outline their technical requirements, and discuss the legal and practical realities of obtaining the official documents. What is IEC 61439? IEC 61439 is an international standard that specifies the definitions, service conditions, construction requirements, technical characteristics, and verification procedures for low-voltage switchgear and controlgear assemblies (also known as "panels" or "switchboards"). It replaced the older IEC 60439 series in 2009, bringing in a radically different approach to verification—moving from "type testing" to "design verification." iec 614391 and 2 pdf