International Standards and Conformity Assessment
for all electrical, electronic and related technologies
SC 121A |
Low-voltage switchgear and controlgear |

Project Reference |
Document Reference |
Init. Date |
Current Stage |
Next Stage |
Working Group |
Project Leader |
Fcst. Publ. Date |
---|---|---|---|---|---|---|---|
IEC 60947-1 ED6
Low-voltage switchgear and controlgear - Part 1: General rules
|
121A/223/CDV | 2016-10 |
RFDIS
2019-09 |
CFDIS
2019-12 |
MT 5 | Karl Hiereth | 2020-03 |
IEC 60947-3 ED4
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
|
121A/248/CDV | 2017-01 |
RFDIS
2019-12 |
CFDIS
2020-02 |
MT 6 | Thomas W. Mennell | 2020-05 |
IEC 60947-4-1/ISH1 ED4
Interpretation Sheet 1 - Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
|
DECDISH
2019-12 |
RDISH
2019-12 |
2020-06 | ||||
IEC 60947-4-2 ED4
Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – Semiconductor motor controllers, starters and soft-starters
|
121A/259/CDV | 2017-06 |
AFDIS
2019-03 |
TFDIS
2019-11 |
WG 2 | Philippe JUHEL | 2020-07 |
IEC 60947-4-3 ED3
Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters – Semiconductor controllers and semiconductor contactors for non-motor loads
|
121A/307/CDV | 2018-03 |
AFDIS
2019-10 |
TFDIS
2020-03 |
WG 2 | Philippe JUHEL | 2020-12 |
IEC 60947-5-1 ED5
Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices and switching elements - Electromechanical control circuit devices
|
121A/330/CD | 2019-10 |
CD
2019-10 |
PCC
2020-02 |
WG 3 | Silvio Förtsch | 2022-08 |
IEC 60947-5-8 ED2
Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches
|
121A/277/CDV | 2016-12 |
PRVC
2019-05 |
2019-08 |
WG 3 | Ikuo Maeda | 2020-08 |
IEC 60947-6-1 ED3
Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment
|
121A/308/CD | 2017-12 |
ACDV
2019-09 |
TCDV
2020-01 |
MT 18 | Neil Czarnecki | 2021-01 |
IEC 60947-6-2 ED3
Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS)
|
121A/270/CDV | 2017-10 |
AFDIS
2019-05 |
TFDIS
2019-10 |
WG 2 | Philippe JUHEL | 2020-07 |
IEC TS 60947-7-5 ED1
Low-voltage switchgear and controlgear - Part 7-5: Ancillary equipment - Terminal blocks for aluminium conductors
|
121A/236/CD | 2017-03 |
ADTS
2018-10 |
TDTS
2020-10 |
PT 60947-7-5 | Axel Bauer | 2020-11 |
IEC 60947-8 ED2
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
|
121A/294/CD | 2019-04 |
ACDV
2019-07 |
TCDV
2019-10 |
WG 2 | Karl Hiereth | 2021-01 |
IEC 60947-9-2 ED1
Low-voltage switchgear and controlgear - Active arc-fault mitigation systems - Part 9-2: Optical-based internal arc-detection and mitigation devices
|
121A/279/CD | 2017-06 |
ACDV
2019-06 |
TCDV
2019-09 |
WG 19 | Eric Bettega | 2020-12 |
IEC TS 63208 ED1
Low-voltage switchgear and controlgear – Security aspects
|
121A/321/DTS |
2018-07 |
APUB
2019-11 |
TPUB
2020-03 |
PT 63208 | Philippe JUHEL | 2020-07 |
