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New Reduced price! IEC 61643-21 Ed. 1.0 b:2000

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IEC 61643-21 Ed. 1.0 b:2000

Reference: M00000254

Condition: New product

IEC 61643-21 Ed. 1.0 b:2000 Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

standard by International Electrotechnical Commission, 09/29/2000

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Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. The contents of the corrigendum of March 2001 have been included in this copy.

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Edition: 1.0 Published: 09/29/2000 Number of Pages: 111 File Size: 1 file , 760 KB