Look for application guides (e.g., from ABB, Schneider Electric, Eaton) that explain the standards in practical terms – but always keep the official PDFs for legal and technical reference.
The document also provides supplementary requirements for PSC‑assemblies intended for use as part of the electrical equipment of machinery. For example, EN IEC 61439‑2:2021/FprAA:2025 is a draft amendment that revises the European version to meet the essential requirements of the EMC Directive 2014/30/EU regarding electromagnetic compatibility.
Whether you are a panel builder aiming for IEC 61439 compliance, a consultant verifying a design, or a student entering the field, mastering these two documents is non-negotiable. Start with the official —and build safer electrical systems.
) : The maximum AC or DC voltage for which the assembly is designed. Rated Insulation Voltage ( Uicap U sub i iec 614391 and 2 pdf
that covers design, planning, and building in compliance with the standard. Legrand White Paper : Focuses specifically on IEC 61439-2 construction rules
Do you need help choosing between verification by or calculation for your panel size?
The IEC 61439 series has significant implications for the electrical industry: Look for application guides (e
Original manufacturers must document and verify 12 specific attributes divided into construction and performance categories. Construction Characteristics
: Resistance to corrosion, UV radiation, and mechanical impacts.
Protection against direct contact (basic protection) and indirect contact (fault protection). Whether you are a panel builder aiming for
Routine inspection, insulation testing, earthing continuity check. End User / Consultant Defining ambient conditions, Incap I sub n Uecap U sub e , and required Form of Separation.
The standard describes verification of temperature‑rise for assemblies. This can be carried out by testing, but under defined boundary conditions, alternatives such as calculation (based on IEC TR 60890) are also permitted. For the verification of dielectric properties, the standard requires impulse voltage withstand verification, which is mandatory either by test or by design rules. The test is not required when clearances in the assembly are 1.5 times the specified value.
If you are currently working on a specific panel design project, I can help you clarify the exact technical specifications required for your build. Let me know: What is the and short-circuit rating ( Icwcap I sub c w end-sub ) of your system?