标准摘要
[中文适用范围]： IEC 60947-4-3:1999+A1:2006+A2:2011 适用于交流半导体非电机负载控制器和接触器，用于通过在开状态和关状态之间改变交流电路的状态来执行电气操作。 IEC 60947-4-3 的合并版本由第一版（1999 年）、修正案 1（2006 年）、修正案 2（2011 年）和 2000 年 5 月的勘误表组成。因此，技术内容与基础版本相同，其修订内容是为了方便用户而准备的。它的版本号为 1.2。页边空白处的垂直线显示了基础出版物已通过修订 1 和 2 进行修改的位置。附录 A、D 和 I 构成本标准的组成部分。附件 B、E、F、G、H 和 J 仅供参考。本出版物应与 IEC 60947-1:2007 一起阅读。 [外文原描述]： IEC 60947-4-3:1999+A1:2006+A2:2011 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ON-state and the OFF-state. This consolidated version of IEC 60947-4-3 consists of the first edition (1999), its amendment 1 (2006), its amendment 2 (2011) and its corrigendum of May 2000. The technical content is therefore identical to the base edition and its amendments and has been prepared for user convenience. It bears the edition number 1.2. A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2. Annexes A, D and I form an integral part of this standard. Annexes B, E, F, G, H and J are for information only. This publication is to be read in conjunction with IEC 60947-1:2007 .
英文名称Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads