is the latest international product-family standard providing general requirements for newly manufactured instrument transformers. It serves as the foundational document for a comprehensive set of standards replacing the older IEC 60044 series .

Applicable to rated frequencies from 15 Hz to 400 Hz and DC applications.

Intended for HV applications (>1 kV AC or >1.5 kV DC); low-voltage systems are covered by IEC 61869-201.

Instrument transformers according to new IEC standards ... - ABB