新的！IEC 60320-2-4:20 18作为IEC 60320-2-4:20 18 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 60320-2-4:20 18适用于仅用于交流的两极电器耦合器，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，用于家用和类似的一般用途，旨在结合或集成在电器或其他多用途电气设备中？50 Hz或60 Hz电源的零件结构取决于设备的重量，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。

NEW!IEC 60320-2-4:2018 is available as IEC 60320-2-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

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.