IEC 61643-21 Ed. 2.0 en:2025

IEC 61643-21 Ed. 2.0 en:2025

IEC 61643-21 Ed. 2.0 en:2025 HistoricalLow voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods

standard byInternational Electrotechnical Commission , 10/01/2025

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IEC 61643-21:2025 This document, together with IEC 61643-01:2024, is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are intended to be connected to telecommunications and signalling networks, and equipment rated up to 1 000 V RMS and 1 500 V DC. These telecommunications and signalling networks can also provide power on the same line, e.g. Power over Ethernet (PoE). Performance and safety requirements, tests and ratings are specified in this document. These devices contain at least one voltage-limiting component (clamping or switching) and are intended to limit surge voltages and divert surge currents.

Product Details

Edition:

2.0

Published:

10/01/2025

ISBN(s):

9782832707418

Number of Pages:

90

File Size:

1 file , 1 Byte

Note:

This product is restricted and cannot be purchased in the following countries Ukraine, Russia, Belarus

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