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DIN EN IEC 61869-1 VDE 0414-9-1:2025-09

Instrument transformers

Part 1: General requirements

(IEC 61869-1:2023); German version EN IEC 61869-1:2024
Class/Status: Standard, valid
Released: 2025-09
VDE Art. No.: 0400690

Note: You can pre-order this document (delivery subject to availability). Valid from 2025-09-01.

This International Standard is applicable to newly manufactured instrument transformers with highest system voltage (Usys) higher than 1 kV AC and 1,5 kV DC, with analogue or digital output for use with electrical measuring instruments or electrical protective devices, either for DC application, or having rated frequencies from 15 Hz to 400 Hz.