IEC 60320-2-4:20 18 RLV包含国际标准及其红线版本。红线版本只有英文版本。Redline版本为您提供了一种快速简单的方法来比较该标准与其前一版本之间的所有变化。红线版本不是IEC官方标准，只有标准的当前版本才被视为官方文件。 IEC 60320-2-4:20 18适用于仅用于交流电的两极电器耦合器，带或不带接地触点，额定电压不超过250 V，额定电流不超过16 A，用于家用和类似一般用途，旨在并入或集成在50 Hz或60 Hz电源的多部件结构的电器或其他电气设备中，这取决于电器的重量，以确保正确接合。这第二版取消并取代了2005年出版的第一版和修正案1:20 09。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: -IEC 60320-2-4与IEC 60320-1:20 15一致。 -IEC 60320-2-4与IEC 60335-1和IEC 60335-2-15一致。IEC 60320-2-4电器耦合器集成到按照这些标准设计和制造的电器中。为此，请特别注意14.2和第20条。 -现在还建议考虑具有辅助触点的器具耦合器。

IEC 60320-2-4:2018 RLV contains the International Standard and its Redline version. The Redline version is available in English only. The Redline version provides you with a quick and easy way to compare all the changes between this standard and its previous edition. The Redline version is not an official IEC Standard, only the current version of the standard is to be considered the official document.

IEC 60320-2-4:2018 is applicable to two-pole appliance couplers for alternating current only, with or without earthing contact, with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A, for household and similar general purposes and intended for incorporation or integration within electric appliances or other electric equipment of multi？part construction for 50 Hz or 60 Hz supply which depend on the weight of the appliance to ensure correct engagement. This second edition cancels and replaces the first edition published in 2005 and Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- IEC 60320-2-4 is aligned with IEC 60320-1:2015.
- IEC 60320-2-4 is aligned with IEC 60335-1 and IEC 60335-2-15. IEC 60320-2-4 appliance couplers are incorporated into appliances designed and manufactured to these standards. To this end, particular attention is drawn to 14.2 and Clause 20.
- It also now proposes that appliance couplers with auxiliary contacts be considered.