IEC 60603-7:2020 is available as IEC 60603-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60603-7:2020 covers 8-way, unshielded, free and fixed connectors and is intended to specify the common dimensions (interface dimensions), mechanical, electrical and environmental characteristics and tests for the family of IEC 60603-7-x connectors. These connectors are intermateable (according to IEC 61076-1 level 2) and interoperable with other IEC 60603-7 series connectors. This fourth edition cancels and replaces the third edition, published in 2008, its Amendment 1:2011 and its Amendment 2:2019. It constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: - Revised the definitions for intermateability and interoperability; added new definitions. - Corrected dimension line for dimension AZ2 in Figure 5. - Corrected dimension line for dimension F1 in Figure A.1. - Revised the reference to ISO/IEC 11801 to ISO/IEC 11801-1. - Added lower limiting temperature and upper limiting temperature definitions. - Revised Table 1 to Table 8 so the column order is Minimum-Nominal-Maximum dimensions (ascending order). - Corrected Table 7: Climatic category and Upper temperature values to 90 °C (to be consistent with the graph in Figure 10 and Note 1 in Figure 10). - Revised the wording in 8.2, contact resistance, for clarification. - Revised Figure 11 and Figure 12 and the wording in the Key below for clarification. - Removed the sentences under the figure in the Introduction. - Added Annex E.