IEC 61000-3-3:2013/AMD2:2021/ISH1:2025
Interpretation Sheet 1 - Amendment 2 - Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection
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About This Item
IEC 61000-3-3:2013/AMD2:2021/ISH1:2025 addresses an interpretation sheet linked to the EMC limits framework for voltage changes, voltage fluctuations, and flicker in public low-voltage supply systems. For engineering teams and compliance reviewers, this reference helps clarify how the parent document should be understood when assessing equipment with rated current ≤16 A per phase and not subject to conditional connection. As a supporting document, IEC 61000-3-3:2013/AMD2:2021/ISH1:2025 is useful in technical review, conformity assessment, and documented evaluation workflows.
Purpose of IEC 61000-3-3:2013/AMD2:2021/ISH1:2025
The purpose of IEC 61000-3-3:2013/AMD2:2021/ISH1:2025 is to clarify the application of the parent EMC requirements in IEC 61000-3-3:2013. Because it is an interpretation sheet associated with Amendment 2, it should be treated as a modifying or explanatory reference rather than a standalone technical rule set. In practice, it supports consistent reading of voltage fluctuation and flicker limits, which is important for technical validation, laboratory evaluation, and compliance workflows involving low-voltage electrical equipment.
Compliance applications of IEC 61000-3-3:2013/AMD2:2021/ISH1:2025
Organizations may use IEC 61000-3-3:2013/AMD2:2021/ISH1:2025 during product evaluation, test planning, and regulatory preparation where the parent EMC limits document is being applied to equipment connected to public low-voltage supply systems. It is especially relevant where verification activities must confirm whether a device with rated current at or below 16 A per phase aligns with the intended interpretation of flicker and voltage change requirements. Laboratories, manufacturers, and procurement teams can use it to support consistent technical documentation and review decisions.
Benefits of IEC 61000-3-3:2013/AMD2:2021/ISH1:2025
Using IEC 61000-3-3:2013/AMD2:2021/ISH1:2025 can improve technical consistency by reducing ambiguity around the parent document’s application. That can help teams strengthen conformity assessment preparation, maintain quality workflows, and reduce rework during testing or product approval. For compliance and procurement functions, it provides a clearer basis for comparing documentation, coordinating engineering review, and managing risk tied to EMC-related performance criteria. It is most valuable where operational consistency and defensible technical decisions are important.
- Interpretation support for the EMC limits framework in IEC 61000-3-3:2013
- Relevant to voltage changes, voltage fluctuations, and flicker assessment
- Useful for laboratory evaluation, conformity assessment, and technical review
- Supports documented compliance workflows for low-voltage connected equipment
- Helps reduce ambiguity in engineering and procurement documentation
- Publication Date: 2025-03-04
- Standard Status: Amendment
- Publisher: IEC
- Edition: 3
- This Version: IEC 61000-3-3:2013 (2025-03-04)
- Previous Version: IEC 61000-3-3:2013 (2022-10-01)
- Previous Version: IEC 61000-3-3:2013 (2021-03-25)
- Previous Version: IEC 61000-3-3:2013 (2017-05-18)
- Previous Version: IEC 61000-3-3:2013 (2013-05-14)
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