IEC？61020-1:20 19规定了术语、符号、测试方法和其他必要信息，以提供机电开关详细规范的一致性。 本文件涉及旨在用于电气和电子设备中的机电开关。本文档涵盖的交换机: a)是通过导电部件(触点)的机械运动打开、关闭或改变电路连接的装置； b)具有480V的最大额定电压； c)最大额定电流为63 A。 这第三版取消并取代了2009年出版的第二版。 与上一版相比，此版本包括以下重大技术变更: a)根据ISO/IEC指令，第？2:20 16，第2条总则由两个新条款取代:第2条规范性参考文献和第3条术语、定义、单位和符号。 2.4首选值和2.5标记已移至第5条和第6条。此外，还增加了包装上的6.2标记。 b)删除了第3条质量保证程序和附件A。 c）增加了4.3.6.3返回力。 d）增加了4.3.6.4行程（执行器的移动）。 e)4.12环境试验: 4.12.1.3和4.12.1.5分别重新编号为4.12.2和4.12.3。4.12.1.4和4.12.1.7已整合到4.12.5.4.12.10中，增加了盐雾。 f)在IEC 61058-1-1:20 16发布后，对IEC 61058-1的一些交叉引用已经更新。 g)以下项目相对于第二版进行了更新。 -表格和图表: 删除了表1和表3，将表4重新编号为表10。新桌子？增加了2、3、4、5、6、7、8和9。 身材？1已重新编号为图？3、图？2重新编号为图？4、图？3重新编号为图？9和图？4重新编号为图？12.增加了新的图1、2、5、6、7、8、10和11。 ——具体用词和常用名称实现了统一。

IEC？61020-1:2019 specifies the terminology, symbols, test methods and other necessary information to provide consistency in detail specifications for electromechanical switches.
This document relates to electromechanical switches intended for use in electrical and electronic appliances. Switches covered by this document:
a) are devices which open, close, or change the connection of a circuit by the mechanical motion of conducting parts (contacts);
b) have a maximum rated voltage of 480 V;
c) have a maximum rated current of 63 A.
This third edition cancels and replaces the second edition published in 2009.
This edition includes the following significant technical changes with respect to the previous edition:
a) In accordance with the ISO/IEC Directives, Part？2:2016, Clause 2 General has been replaced by two new clauses: Clause 2 Normative references and Clause 3 Terms, definitions, units and symbols.
2.4 Preferred values and 2.5 Marking have been moved to Clauses 5 and 6. In addition, 6.2 Markings on packaging has been added.
b) Clause 3 Quality assurance procedures and Annex A have been deleted.
c) 4.3.6.3 Returning force has been added.
d) 4.3.6.4 Travel (movement of the actuator) has been added.
e) 4.12 Environmental testing:
4.12.1.3 and 4.12.1.5 have been renumbered 4.12.2 and 4.12.3, respectively. 4.12.1.4 and 4.12.1.7 have been integrated in 4.12.5. 4.12.10 Salt mist has been added.
f) Following publication of IEC 61058-1-1:2016, some cross-references to IEC 61058-1 have been updated.
g) The following items have been updated with respect to the second edition.
- Tables and figures:
Tables 1 and 3 have been deleted, Table 4 has been renumbered to Table 10. New Tables？2, 3, 4, 5, 6, 7, 8 and 9 have been added.
Figure？1 has been renumbered to Figure？3, Figure？2 renumbered to Figure？4, Figure？3 renumbered to Figure？9 and Figure？4 renumbered to Figure？12. Added new Figures 1, 2, 5, 6, 7, 8, 10 and 11 have been added.
- Specific words and common names have been unified.