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: ANULADA / 2014-06-23
Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters.
Low-voltage switchgear and controlgear -- Part 4: Contactors and motor-starters -- A.C. semiconductor motor controllers and starters.
Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters (IEC 60947-4-2:1999/A2:2006).
Status: ANULADA / 2013-04-01
Low-voltage switchgear and controlgear -- Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters.
Low-voltage switchgear and controlgear -- Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1:2000/A2:2005).
Status: ANULADA / 2012-09-01
Low-voltage switchgear and controlgear -- Part 7-3: Ancillary equipment - Safety requirements for fuse terminal blocks
Status: CANCELLED / 2012-06-01
Low-voltage switchgear and controlgear -- Part 7-1: Ancillary equipment - Terminal blocks for copper conductors.
Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment - Protective conductor terminal blocks for copper conductors
Status: ANULADA / 2012-05-01
Low-voltage switchgear and controlgear -- Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units (IEC 60947-3:1999/A2:2005)
Low-voltage switchgear and controlgear -- Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units.
Status: ANULADA / 2012-03-28
A METHOD FOR ASSESSING THE SHORT-CIRCUIT WITHSTAND STRENGTH OF PARTIALLY TYPE-TESTED ASSEMBLIES (PITA).
Status: ANULADA / 2012-03-01
Electromechanical contactors for household and similar purposes
ELECTROMECHANICAL CONTACTORS FOR HOUSEHOLD AND SIMILAR PURPOSES.
Status: ANULADA / 2012-02-08
Low-voltage switchgear and controlgear assemblies. Constructive requirements for assemblies for construction sites (ACS).
Status: ANULADA / 2011-02-02
Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to an internal fault
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