International Standards and Conformity Assessment for all electrical, electronic and related technologies

SC 121B

Low-voltage switchgear and controlgear assemblies

 
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SC 121B Work programme (6)

Project

Reference

Document

Reference

Init.

Date

Current

Stage

Next

Stage

Working

Group

Project

Leader

Fcst. Publ.

Date

IEC TR 60890 ED3

A method of temperature-rise verification of low-voltages switchgear and controlgear assemblies by calculation

121B/95A/CD 2019-11 CD
  • CD
  • Committee Draft

2019-11

PCC
  • PCC
  • Preparation of CC document

2020-01

2020-09
IEC TR 61439-0 ED3

Low-voltage switchgear and controlgear assemblies- Part 0: Guidance to specifying assemblies

121B/94A/CD 2019-11 CD
  • CD
  • Committee Draft

2019-11

PCC
  • PCC
  • Preparation of CC document

2020-01

2020-09
IEC 61439-1 ED3

Low-voltage switchgear and controlgear assemblies - Part 1: General rules

121B/80/CDV 2014-04 RFDIS
  • RFDIS
  • FDIS received and registered

2019-11

CFDIS
  • CFDIS
  • Draft circulated as FDIS

2020-02

MT 2 Thomas W. Mennell 2020-04
IEC 61439-2 ED3

Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies

121B/92/CDV 2014-04 PRVC
  • PRVC
  • Preparation of RVC

2020-01

2020-04

MT 2 Thomas W. Mennell 2020-12
IEC TS 63107 ED1

Integration of internal arc-fault mitigation systems in power switchgear and controlgear assemblies (PSC ‑ Assemblies) according to IEC 61439-2

121B/89/DTS

2017-01 APUB
  • APUB
  • Approved for publication

2020-01

TPUB
  • TPUB
  • Translation of publication

2020-02

PT 63107 Martin Isberg 2020-05
IEC TS 63290 ED1

General technical requirements for intelligent assemblies

121B/93A/NP 2020-01 ACD
  • ACD
  • Approved for CD

2020-01

CD
  • CD
  • Draft circulated as CD

2020-10

PT 63290 Weihong Song 2022-12