The standard clarifies legal and technical liabilities by dividing stakeholders into three categories:
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, highlighting the responsibilities of the original manufacturer versus the assembly builder. Hager Guide : A detailed Guide to the New IEC 61439 Standard that explains the transition from the old 60439 series. Schneider Electric Blog : A useful overview of what the standards mean for equipment specifications , particularly the removal of the old TTA/PTTA categories. Major Changes to Note iec 614391 and 2 pdf
: Comparing a new design with an already tested reference design using strict structural derivation rules. 5. The 12 Design Verification Attributes
The relationship between the two parts can be summarized in a simple analogy: The standard clarifies legal and technical liabilities by
Engineers need instant offline access to both parts when they are on the shop floor or at a remote site without internet. A PDF is portable and searchable.
3. The Three Responsibilities: Original Manufacturer, Assembly Manufacturer, and User Hager Guide : A detailed Guide to the
| Aspect | Details | | :--- | :--- | | | Low‑voltage switchgear and controlgear assemblies – Part 1: General rules | | Latest Edition | IEC 61439‑1:2020 (3.0 edition, published in May 2020) | | Corrigenda | Corrigendum 1 (Dec 2021); Corrigendum 2 (Sep 2023) | | Application | General rules for assemblies ≤1000 V AC or ≤1500 V DC | | Content | Definitions, service conditions, construction, technical characteristics, verification |
: Capability to accommodate external incoming and outgoing cables. Performance Requirements
The latest 2020 edition of Part 2 represents a significant technical revision over the 2011 version and remains current today. Key changes include clarifications on the design verification process, updates to internal separation requirements, and the introduction of detailed annexes for specific applications, such as assemblies used in photovoltaic (PV) installations (Annex DD). Compliance with IEC 61439-2 also forms part of the requirement for affixing the CE mark, where applicable.
The end-user or specifier who must provide the specific electrical and environmental site conditions (e.g., ambient temperature, humidity, network type) so the assembly can be engineered correctly. 4. Verification Methods: Replacing "Type Testing"