Reference details

Reference
EN 61643-21:2001/A1:2009
Official title
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Organisation
CENELEC
Publisher status in source
PublishedThis is the status recorded in the source, not a statement that this is the latest edition.
Source access
19 October 2026

Research and application

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Product research routes

Questions for the evidence file

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  • Software version and change control

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