IEC 60947-5-1:20 24适用于用于控制、发信号、联锁等开关设备和控制设备的控制电路设备和开关元件。 适用于额定电压不超过1000V AC（频率不超过1000Hz）或600V DC的控制电路器件。 这第五版取消并取代了2016年出版的第四版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)更新范围结构和排除； b)对控制电路的要求； c)更新正常使用条件(例如冲击和振动)； d)更新信息和标记要求，包括参考IEC TS 63058的环境信息要求:2021; e)考虑安全方面(例如人工光辐射、安全方面、有限能量源、存储电荷能量电路)的结构要求和相应测试的更新； f)根据通用文件更新EMC要求； g)附录D中对簧片触点磁性开关的新要求； h)附录F中通过双重或加强绝缘实现的II类电路器件的要求； i)更新附件G中的拔出试验； j)附件J中声音信号装置的信息要求； k)插入新的附件O。

IEC 60947-5-1:2024 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear.
It applies to control circuit devices having a rated voltage not exceeding 1 000 V AC (at a frequency not exceeding 1 000 Hz) or 600 V DC.
This fifth edition cancels and replaces the fourth edition published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) update of the scope structure and exclusions;
b) requirements for control circuits;
c) update of the normal service conditions (e.g. shock and vibration);
d) update of information and marking requirements including environmental information requirements referencing IEC TS 63058:2021;
e) update of the constructional requirements and the corresponding tests considering safety aspects (e.g. artificial optical radiation, security aspects, limited energy source, stored charge energy circuit);
f) update of the EMC requirements according to the generic documents;
g) new requirements for reed contact magnetic switches in Annex D;
h) requirements for class II circuit devices achieved by double or reinforced insulation in Annex F;
i) update of pull-out tests in Annex G;
j) information requirements for audible signalling device in Annex J;
k) insertion of new Annex O.