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DIN EN IEC 61558-2-2 VDE 0570-2-2:2025-09

Safety of transformers, reactors, power supply units and combinations thereof

Part 2-2: Particular requirements and tests for control transformers and power supply units incorporating control transformers

(IEC 61558-2-2:2022); German version EN IEC 61558-2-2:2025
Class/Status: Standard, valid
Released: 2025-09
VDE Art. No.: 0500319

This Part 2-2 of IEC 61558 applies to stationary or portable, single-phase or poly-phase, air-cooled (natural or forced), independent or associated control transformers and power supplies incorporating a control transformer, having a rated supply voltage not exceeding 1 000 V a.c. and rated supply and internal operating frequency not exceeding 500 Hz.