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IEC 60947-10:2026

Low-voltage switchgear and controlgear - Part 10: Semiconductor circuit-breakers

Edition date: 2026-05-12
In Force
Available languages: English, French
Summary: IEC 60947-10:2026 applies to semiconductor circuit-breakers with a rated voltage up to 1 000 V AC or 1 500 V DC, intended to be installed and operated by instructed or skilled persons.
This document covers the following different types:
- semiconductor circuit-breakers (SCCBs) having semiconductor switching elements and, for isolation function, mechanical isolation contacts connected in series;
- semiconductor hybrid circuit-breakers (SCHCBs) having semiconductor switching elements and mechanical switching elements in parallel and in addition, for isolation function, mechanical isolation contacts connected in series.
In this document, where the term "circuit-breaker" only is used, it applies to both types.
This document applies regardless of the rated currents, the method of construction or the proposed applications of the circuit-breakers.
The object of this document is to state:
a) the characteristics of circuit-breakers;
b) the conditions with which circuit-breakers shall comply with reference to:
1) operation and behaviour in normal service;
2) operation and behaviour under specific abnormal circuit conditions (e.g. overload or short-circuit);
3) dielectric properties;
4) requirements on electromagnetic compatibility;
c) tests intended for confirming that these conditions have been met and the methods to be adopted for these tests;
d) information to be marked on or given with the circuit-breakers.

IEC 60947-10:2026 s'applique aux disjoncteurs à semiconducteurs dont la tension assignée ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu, et qui sont destinés à être installés et utilisés par des personnes qualifiées ou compétentes.
Le présent document couvre les différents types suivants:
- les disjoncteurs à semiconducteurs (SCCB, Semiconductor Circuit-Breakers), qui comportent des éléments de commutation à semiconducteurs et, pour la fonction de sectionnement, des contacts de sectionnement mécaniques raccordés en série;
- les disjoncteurs hybrides à semiconducteurs (SCHCB, Semiconductor Hybrid Circuit Breakers), qui comportent des éléments de commutation à semiconducteurs et des éléments de commutation mécaniques en parallèle, auxquels s'ajoutent, pour la fonction de sectionnement, des contacts de sectionnement mécaniques raccordés en série.
Dans le présent document, lorsque le terme "disjoncteur" est utilisé seul, il s'applique à ces deux types.
Le présent document s'applique indépendamment des courants assignés, les méthodes de construction et l'emploi prévu des disjoncteurs.
Le présent document a pour objet de spécifier:
a) les caractéristiques des disjoncteurs;
b) les conditions auxquelles doivent satisfaire les disjoncteurs concernant:
1) leur fonctionnement et leur tenue en service normal;
2) leur fonctionnement et leur tenue dans des conditions de circuit anormales spécifiques (par exemple, surcharge ou court circuit);
3) leurs propriétés diélectriques;
4) leurs exigences de compatibilité électromagnétique;
c) les essais destinés à vérifier si ces conditions sont remplies et les méthodes à adopter pour ces essais;
d) les informations à marquer sur les disjoncteurs ou à fournir avec ceux-ci.
ICS: 29.130.20-Low voltage switchgear and controlgear
CTN: TC 121/SC 121A - 10618

Otras Relaciones

Acuerdo de Frankfurt FprEN IEC 60947-10:2025

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