SC 121B

Low-voltage switchgear and controlgear assemblies

 
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SC 121B Work programme (7)

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/113/CD 2019-11 TDTR
  • TDTR
  • Translation of DTR

2021-04

CDTR
  • CDTR
  • Draft circulated as DTR

2021-06

2022-02
IEC TR 61439-0 ED3

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

121B/126/DTR


2019-11 PRVDTR
  • PRVDTR
  • Preparation of RVDTR

2021-01

2021-04

2021-10
IEC 61439-3 ED2

Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)

121B/129/RR 2021-02 ACD
  • ACD
  • Approved for CD

2021-02

CD
  • CD
  • Draft circulated as CD

2021-09

MT 4 Paul Sayer 2023-12
IEC 61439-5 ED3

Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks

121B/121/RR 2020-11 ACD
  • ACD
  • Approved for CD

2020-11

CD
  • CD
  • Draft circulated as CD

2021-09

MT 7 Thomas W. Mennell 2023-12
IEC 61439-7 ED2

Low-voltage switchgear and controlgear assemblies - Part 7: Assemblies for specific applications such as marinas, camping sites, market squares, electric vehicle charging stations

121B/125/CD 2020-11 PCC
  • PCC
  • Preparation of CC

2021-02

2021-03

MT 8 Matteo Gavazzeni 2022-05
IEC 62208 ED3

Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements

121B/120/CD 2020-11 CDM
  • CDM
  • CD to be discussed at meeting

2021-02

ACD
  • ACD
  • Approved for CD

2021-04

MT 6 Michael Sartor 2022-07
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

2021-10

PT 63290 Weihong Song 2023-05