IEC 60947-4-2
Low-Voltage Switchgear and Controlgear Part 4: Contactors and Motor-Starters Section 2: AC Semiconductor Motor Controllers and Starters
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| Organization: | IEC |
| Publication Date: | 1 November 1995 |
| Status: | inactive |
| Page Count: | 144 |
Document History
June 1, 2020
Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – Semiconductor motor controllers, starters and soft-starters
This part of IEC 60947 applies to semiconductor motor controllers, starters and soft-starters which can include a series mechanical switching device, intended to be connected to circuits the rated...
July 1, 2012
Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters
A description is not available for this item.
May 1, 2011
Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters
This standard applies to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which...
February 1, 2007
Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters
Scope and object
This standard applies to controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not...
March 1, 2002
Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
Scope and object
This standard applies to controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not...
March 1, 2002
Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
Scope and object
This standard applies to controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not...
December 1, 1999
Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
A description is not available for this item.
December 1, 1999
Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
A description is not available for this item.
December 1, 1999
Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
A description is not available for this item.
March 1, 1999
Low-Voltage Switchgear and Controlgear Part 4: Contactors and Motor-Starters Section 2: AC Semiconductor Motor Controllers and Starters
A description is not available for this item.
August 1, 1998
Amendment 2 Low-voltage switchgear and controlgear – Part 4: Contactors and motor-starters – Section 2: AC semiconductor motor controllers and starters
A description is not available for this item.
April 1, 1997
Amendement 1 Appareillage à basse tension Partie 4: Contacteurs et démarreurs de moteurs Section 2: Gradateurs et démarreurs à semiconducteurs de moteurs à courant alternatif
A description is not available for this item.
IEC 60947-4-2
November 1, 1995
Low-Voltage Switchgear and Controlgear Part 4: Contactors and Motor-Starters Section 2: AC Semiconductor Motor Controllers and Starters
A description is not available for this item.