We use cookies to make our websites more user-friendly and to continuously improve them. If you continue to use the website, you consent to the use of cookies. You can find more information in our privacy statement and our cookie guidelines.

Dear Customer

Our Customer Service will be available again as of 2 January 2025. 

Please note that new registrations and requests to be processed manually will only be processed from this point onwards.

You can of course place orders and receive downloads online at any time.

We wish you happy holidays, a peaceful time and a healthy New Year!

Your DIN Media

Standards Worldwide
Standards Worldwide
Phone +49 30 58885700-07

Standard [CURRENT] Article is not orderable

IEC 61643-21 Edition 1.1:2009-04

Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

Publication date
2009-04
Original language
English, French
Pages
128
Publication date
2009-04
Original language
English, French
Pages
128

Product information on this site:

Quick delivery via download or delivery service

Buy securely with a credit card or pay upon receipt of invoice

All transactions are encrypted

Replacement amendments

This document has been modified by: IEC 61643-21 AMD 2:2012-07

Loading recommended items...
Loading recommended items...
Loading recommended items...
Loading recommended items...