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Adjustable speed electrical power drive systems - Part 5-1: Safety requirements - Electrical, thermal and energy

Adjustable speed electrical power drive systems - Part 9-1: Ecodesign for power drive systems, motor starters, power electronics and their driven applications - General requirements for setting energy efficiency standards for power driven equipment using the extended product approach (EPA) and semi analytic model (SAM)

Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification (IEC 22G/522A/CDV:2025); German and English version EN IEC 61800-9-2:2025/prA1:2025

Determination of power losses in high-voltage direct current (HVDC) converter stations (IEC 22F/821/CDV:2025); German and English version prEN IEC 61803:2025

Electrical relays - Part 2: Reliability

Electrical relays - Part 2-1: Reliability - Procedure for the verification of B10 values

Electromechanical elementary relays - Part 3: Relays with forcibly guided (mechanically linked) contacts

Electrical relays - Part 4: General and safety requirements for reed relays

All-or-nothing electrical relays - Tests and Measurements - Part 7-0: General and Guidance (IEC 94/724/CD:2022); Text in German and English

All-or-nothing electrical relays - Tests and Measurements - Part 7-3: Relay coil properties (IEC 94/633/CD:2021); Text in German and English

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