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Standards IEC - International electro-technical commission - Page 476
IEC – The company IEC is world-leading organization, which creates and issues International standards for all electrical, electronic and other related technologies known generally as electro-technologies. Wherever, there is electricity and electronics you can find the company IEC, which promotes the safety and performance, the environment, electrical energy efficiency and renewable energy. The company IEC also administers conformity assessment systems, which certify that the equipment, systems or components comply with International Standards of this company.
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IEC 60947-3-ed.4.0/Cor.1
Correction
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Corrigendum 1 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
(Corrigendum 1 - Appareillage a basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-sectionneurs et combines-fusibles)
Correction published on 22.10.2021
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IEC 60947-3-ed.4.1+Amd.1-CSV
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Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Standard published on 25.4.2025
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IEC 60947-4-1-ed.5.0
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Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
(Appareillage a basse tension - Partie 4-1: Contacteurs et demarreurs de moteurs – Contacteurs et demarreurs electromecaniques)
Standard published on 8.11.2023
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IEC 60947-4-1-ed.5.0/Cor.1
Correction
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Corrigendum 1 - Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
(Corrigendum 1 - Appareillage a basse tension - Partie 4-1: Contacteurs et demarreurs de moteurs - Contacteurs et demarreurs electromecaniques)
Correction published on 16.3.2026
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IEC 60947-4-2-ed.4.0
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Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – Semiconductor motor controllers, starters and soft-starters
(Appareillage a basse tension - Partie 4-2: Contacteurs et demarreurs de moteurs - Gradateurs, demarreurs et demarreurs progressifs de moteurs a semiconducteurs)
Standard published on 26.6.2020
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IEC 60947-4-2-ed.4.0/Amd.1
Change
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Amendment 1 - Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
(Amendement 1 - Appareillage a basse tension – Partie 4-2 : Contacteurs et demarreurs de moteurs – Gradateurs, demarreurs et demarreurs progressifs a semiconducteurs de moteurs)
Change published on 5.11.2024
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IEC 60947-4-2-ed.4.0/Amd.1/Cor.1
Correction
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Corrigendum 1 - Amendment 1 - Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
(Corrigendum 1 - Amendement 1 - Appareillage a basse tension - Partie 4-2: Contacteurs et demarreurs de moteurs - Gradateurs, demarreurs et demarreurs progressifs a semiconducteurs de moteurs)
Correction published on 16.3.2026
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IEC 60947-4-2-ed.4.1+Amd.1-CSV
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Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
Standard published on 5.11.2024
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IEC 60947-4-3-ed.3.0
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Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - Semiconductor controllers and semiconductor contactors for non-motor loads
(Appareillage a basse tension - Partie 4-3 : Contacteurs et demarreurs de moteurs - Gradateurs a semiconducteurs et contacteurs a semiconducteurs pour charges non moteurs)
Standard published on 14.7.2020
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IEC 60947-5-1-ed.5.0
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Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices
(Appareillage a basse tension - Partie 5-1: Appareils et elements de commutation pour circuits de commande - Appareils electromecaniques pour circuits de commande)
Standard published on 26.3.2024
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