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TC4 Switchgear, Controlgear and Associated Equipment

NSAI ETC TC 4 Switchgear, Controlgear and Associated Equipment

NSAI ETC TC4 is responsible for coordinating the development of standards for switchgear, controlgear and associated equipment, with articular reference to the work of the IEC and CENELEC.
The matter of Residual Current Devices (RCDs) has been delegated to an independent Task Force (RCDTF).
International/European Committees Mirrored (in full or in part)

IEC TC121 Switchgear and controlgear and their assemblies for low voltage

IEC TC23 Electrical accessories

CENELEC TC121A Low-voltage switchgear and controlgear

CENELEC TC23E Circuit breakers and similar devices for household and similar applications

News & Events

Download presentations from the recent Fire Safety Standards Seminar

Review the presentations delivered by guest speakers at a recent NSAI Fire Safety Seminar. Learn more...


Public Consultation on National Rules for Electrical Installations

Concerning circuits intended to supply energy to electric vehicles and circuits intended for feeding back electricity from electric vehicles into the supply network. Learn more...

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