IEC 60320-2-1:20 18适用于家用缝纫机的专用电器连接器。这些缝纫机耦合器仅用于交流电，额定电压不超过250 V，额定电流不超过2.5 A。 这第三版取消并取代了2000年出版的第二版。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: -符合IEC 60320-1:20 15。 本第2-1部分应与IEC 60320-1:家用和类似通用电器耦合器—第1部分:一般要求一起使用。它是在该标准第三版（2015年）的基础上建立的。

IEC 60320-2-1:2018 is applicable to special purpose appliance couplers for household sewing machines. These sewing machine couplers are for alternating current only and have a rated voltage not exceeding 250 V and a rated current not exceeding 2,5 A.
This third edition cancels and replaces the second edition published in 2000. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- Aligned with IEC 60320-1:2015.
This Part 2-1 is to be used in conjunction with IEC 60320-1: Appliance couplers for household and similar general purposes – Part 1: General requirements. It was established on the basis of the third edition of that standard (2015).