Special classes:
These are used for billing and monitoring, requiring high precision at normal operating currents. en 61869-2
The standard ensures that current transformers: Special classes: These are used for billing and
Current transformers that comply with EN 61869-2 are used in a wide range of applications, including: ALF (for protection)
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 Avoid relying on superseded 60044-1 standards for new equipment.