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Preview STN EN IEC 63522-20 1.9.2025
STN EN IEC 63522-20 (353410)

Electrical relays - Tests and measurements - Part 20: Mechanical endurance

Standard published on 1.9.2025

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Preview STN EN IEC 63522-22 1.9.2025
STN EN IEC 63522-22 (353410)

Electrical relays - Tests and measurements - Part 22: Limiting continuous current

Standard published on 1.9.2025

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Preview STN EN IEC 63522-24 1.9.2025
STN EN IEC 63522-24 (353410)

Electrical relays - Tests and measurements - Part 24: Load transfer

Standard published on 1.9.2025

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Preview STN EN IEC 63522-27 1.9.2025
STN EN IEC 63522-27 (353410)

Electrical relays - Testing and measurement - Part 27: Electrical contact noise

Standard published on 1.9.2025

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Preview STN EN IEC 63522-28 1.9.2025
STN EN IEC 63522-28 (353410)

Electrical relays - Tests and measurement - Part 28: Thermoelectric electromotive force (e.m.f.)

Standard published on 1.9.2025

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Preview STN EN IEC 63522-32 1.9.2025
STN EN IEC 63522-32 (353410)

Electrical relays - Tests and measurements - Part 32: Acoustic noise

Standard published on 1.9.2025

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Preview STN EN IEC 63522-37 1.9.2025
STN EN IEC 63522-37 (353410)

Electrical relays - Tests and measurements - Part 37: Terminal temperature rise at rated load

Standard published on 1.9.2025

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Preview STN EN IEC 63522-38 1.9.2025
STN EN IEC 63522-38 (353410)

Electrical relays - Testing and measurement - Part 38: Mechanical interlock

Standard published on 1.9.2025

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Preview STN EN IEC 63522-40 1.9.2025
STN EN IEC 63522-40 (353410)

Electrical relays - Tests and measurements - Part 40: Short circuit testing

Standard published on 1.9.2025

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Preview STN EN IEC 63522-44 1.9.2025
STN EN IEC 63522-44 (353410)

Electrical relays - Tests and measurements - Part 44: Corrosive atmosphere due to salt mist

Standard published on 1.9.2025

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