Always specify CTs by referencing EN 61869-2 including accuracy class, rated burden, ALF (for protection), and FS (for metering). Avoid relying on superseded 60044-1 standards for new equipment.
is the European product standard that defines the specific requirements for inductive current transformers (CTs). It serves as a critical document for electrical engineers, manufacturers, and utilities, replacing the older EN/IEC 60044-1 and 60044-6 standards to introduce modernized technical requirements, particularly regarding transient performance. Scope and General Context