I.S. EN 60947-2:2017&A1:2020现行
Low-voltage switchgear and controlgear - Part 2: Circuitbreakers (IEC 60947-2:2016/A1:2019)
出版：National Standards Authority of Ireland
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基本信息
标准编号： I.S. EN 60947-2:2017&A1:2020
出版单位：National Standards Authority of Ireland
标准页数：780
标准简介
This part of IEC 60947 series applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers.
本标准替代的旧标准
等同采用的国际标准
