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
TC 121 is a Technical Committee within the International Electrotechnical Commission (IEC). 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 246 standards.
TC 121 develops IEC 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 246 published standards from this technical committee.
The International Electrotechnical Commission (IEC) is the world's leading organization for the preparation and publication of international standards for electrical, electronic, and related technologies. Founded in 1906, the IEC provides a global platform for companies, industries, and governments to meet, discuss, and develop the international standards they require.
A Technical Committee (TC) in IEC 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.