IEC 60934:2019作为IEC 60934:2019 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60934:2019适用于设计为“电路？家用和类似应用的设备断路器”（CBE）。根据本文件的CBE旨在为电气设备内的电路提供保护，包括其组件（例如电机、变压器、内部布线）。本文件还涵盖了适用于在欠压和/或过压情况下保护电气设备的CBE。本文件还涵盖了适用于隔离的CBE。本第四版取消并取代2000年出版的第三版，修正案1:2007和修正案2:20 13。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)用于型式试验目的的澄清。

IEC 60934:2019 is available as IEC 60934:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60934:2019 is applicable to mechanical switching devices designed as "circuit？breakers for equipment" (CBE) for household and similar applications. CBEs according to this document are intended to provide protection to circuits within electrical equipment including its components (e.g. motors, transformers, internal wiring). This document covers also CBEs applicable for protection of electrical equipment in case of undervoltage and/or overvoltage. This document also covers CBEs which are suitable for isolation. This fourth edition cancels and replaces the third edition published in 2000, Amendment 1:2007 and Amendment 2:2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) clarifications for type testing purposes.