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: 221
Status: VIGENTE / 1982-10-15
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. TERMINAL MARKING AND DISTINCTIVE NUMBER FOR PARTICULAR CONTROL SWITCHES.
Status: VIGENTE / 1982-09-15
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. TERMINAL MARKING, DISTINCTIVE NUMBER LETTER FOR PARTICULAR CONTACTOR RELAYS.
Status: ANULADA / 2024-05-22
Low-voltage switchgear and controlgear assemblies - Part 1: General rules
Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies
Status: ANULADA / 2024-04-03
Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches
Status: ANULADA / 2024-02-20
Low-voltage switchgear and controlgear - Part 1: General rules
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Low-voltage switchgear and controlgear -- Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Status: ANULADA / 2023-03-28
Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
Status: ANULADA / 2023-02-02
Plastic manholes boxes intended for low voltage electrical purposes. General requirements.
Status: ANULADA / 2023-01-18
Low-voltage switchgear and controlgear. Ancillary equipment. Terminal block assemblies for testing kW-h meters.
Status: ANULADA / 2022-06-14
Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 1: General rules
Status: ANULADA / 2022-03-23
Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
Status: ANULADA / 2022-02-23
Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors
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