Committee:
IEC/TC 121 Switchgear and controlgear and their assemblies for low voltage
CLC/BTTF 170-1 Common modifications to EN IEC 61439-1:2021 and EN IEC 61439-2:2021
CLC/SR 121 Switchgear and controlgear and their assemblies for low voltage
CLC/SR 121B Low-voltage switchgear and controlgear assemblies
CLC/TC 121A Low-voltage switchgear and controlgear
Standards developed by the committee: CTN 201/SC 121AB: 220
Status: VIGENTE / 2025-04-02
Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
Status: VIGENTE / 2025-03-18
Low-voltage switchgear and controlgear assemblies. Constructive requirements for assemblies for construction sites (ACS).
Status: VIGENTE / 2024-06-26
Low-voltage switchgear and controlgear assemblies - Part 7: Assemblies for specific applications such as marinas, camping sites, market squares, electric vehicle charging stations
Status: VIGENTE / 2024-06-19
Low-voltage switchgear and controlgear - Part 1: General rules
Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements
Status: VIGENTE / 2024-02-21
Low-voltage switchgear and controlgear - Control switches - Position switches 30 × 55 - Dimensions and characteristics
Low-voltage switchgear and controlgear - Control switches - Position switches 42,5 x 80 - Dimensions and characteristics
Status: VIGENTE / 2024-01-17
Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment
Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS)
Status: VIGENTE / 2023-11-29
Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
Status: VIGENTE / 2023-02-22
Status: VIGENTE / 2023-01-18
Low-voltage switchgear and controlgear. Ancillary equipment. Terminal block assemblies for testing kW-h meters.
Status: VIGENTE / 2022-07-20
Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
Status: VIGENTE / 2022-03-23
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Status: VIGENTE / 2022-03-02
Low-voltage switchgear and controlgear assemblies - Part 1: General rules
Status: VIGENTE / 2021-12-22
Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches
Status: VIGENTE / 2021-12-07
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