ECSS-E-ST-20C Rev.1 – Electrical and electronic (15 October 2019)

This standard has been cancelled and superseded by ECSS-E-ST-20C Rev.2 (8 April 2022)



This Standard establishes the basic rules and general principles applicable to the electrical, electronic, electromagnetic, microwave and engineering processes. It specifies the tasks of these engineering processes and the basic performance and design requirements in each discipline. It defines the terminology for the activities within these areas.

It defines the specific requirements for electrical subsystems and payloads, deriving from the system engineering requirements laid out in ECSS-E-ST-10 ‘Space engineering – System engineering general requirements’.

This standard may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.






for printing: The Pre-Tailoring Table on pages 97-136 is formatted DIN A3

Md5 checksum .pdf file = 333D000A0367A34BD98A5F1479065AF0
Md5 checksum .docx file = 4CAF482F66300A1BDE01F585271877AF


This standard cancels and replaces ECSS-E-ST-20C (31 July 2008)