IEC/TC 121 - Switchgear and controlgear and their assemblies for low voltage
To prepare international standards for low-voltage switchgear and controlgear equipment for industrial, commercial and similar use rated below or equal to 1 kV a.c. and 1,5 kV d.c, electromechanical as well as semiconductor (solid state) equipment. The scope includes open and enclosed separate items of equipment as well as assemblies which are the combinations of items of equipment into complete functional units.
Appareillages et ensembles d’appareillages basse tension
Préparer des normes internationales applicables à l'appareillage à basse tension destiné à des usages industriels, commerciaux et similaires pour des tensions assignées inférieures ou égales à 1 kV en courant alternatif et 1,5 kV en courant continu, à la fois pour les équipements électromécaniques ou à semi-conducteurs. Le domaine d'activité comprend les appareils nus et sous enveloppe ainsi que leurs ensembles qui sont des combinaisons en unités fonctionnelles complètes.
General Information
Frequently Asked Questions
IEC/TC 121 is a Technical Committee within the International Organization for Standardization (ISO). It is named "Switchgear and controlgear and their assemblies for low voltage" and is responsible for: To prepare international standards for low-voltage switchgear and controlgear equipment for industrial, commercial and similar use rated below or equal to 1 kV a.c. and 1,5 kV d.c, electromechanical as well as semiconductor (solid state) equipment. The scope includes open and enclosed separate items of equipment as well as assemblies which are the combinations of items of equipment into complete functional units. This committee has published 92 standards.
IEC/TC 121 develops ISO standards in the area of Information technology. The scope of work includes: To prepare international standards for low-voltage switchgear and controlgear equipment for industrial, commercial and similar use rated below or equal to 1 kV a.c. and 1,5 kV d.c, electromechanical as well as semiconductor (solid state) equipment. The scope includes open and enclosed separate items of equipment as well as assemblies which are the combinations of items of equipment into complete functional units. Currently, there are 92 published standards from this technical committee.
The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. Founded in 1947 and headquartered in Geneva, Switzerland, ISO brings together experts from 170+ member countries to share knowledge and develop voluntary, consensus-based standards that support innovation and provide solutions to global challenges.
A Technical Committee (TC) in ISO is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.