En 61869-2 Jun 2026

| Feature | IEC 60044-1 (old) | EN 61869-2 (new) | |---------|-------------------|------------------| | Composite error | Defined but measured differently | Harmonized with general standard | | Transient classes | TPS, TPX, TPY, TPZ | Same classes, but test methods aligned with 61869-1 | | Marking | P1/P2, S1/S2 | Same but clearer burden/ALF marking format | | FS concept | Yes | Retained | | Accuracy test points | Several points | Simplified in some ranges | | Environmental tests | Separate standard | Integrated via 61869-1 |

EN 61869-2 distinguishes CTs by their intended application:

This standard is part of the IEC 61869 series, which replaced the older IEC 60044 series. EN 61869-2 specifically covers inductive (electromagnetic) CTs. Electronic or low-power CTs are covered by other parts (e.g., EN 61869-6 for LPITs). en 61869-2

In conclusion, EN 61869-2 is an important standard for current transformers, outlining the requirements for their design, testing, and performance. By following this standard, manufacturers can ensure that their current transformers provide accurate and reliable measurements, while users can benefit from improved safety, interoperability, and system performance.

The standard EN 61869-2 covers several key aspects of current transformers, including: | Feature | IEC 60044-1 (old) | EN

: It specifies the requirements for rated primary and secondary currents, including standard values and the method of specifying these currents.

The standard ensures that current transformers: In conclusion, EN 61869-2 is an important standard

Accuracy is typically guaranteed from 5% to 120% of the rated current.

is the essential European standard for conventional inductive current transformers used in energy measurement and power system protection. It updates the accuracy, thermal, dielectric, and transient performance requirements from the older 60044 series and aligns with the global IEC 61869 framework. For engineers designing or specifying CTs in Europe, this document is mandatory reading alongside EN 61869-1.