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IEC 60947-4-3 Ed. 1.2 b:2011
M00000302
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IEC 60947-4-3 Ed. 1.2 b:2011 Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 07/26/2011
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IEC 60947-4-3:1999+A1:2006+A2:2011 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ON-state and the OFF-state. This consolidated version of IEC 60947-4-3 consists of the first edition (1999), its amendment 1 (2006), its amendment 2 (2011) and its corrigendum of May 2000. The technical content is therefore identical to the base edition and its amendments and has been prepared for user convenience. It bears the edition number 1.2. A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2. Annexes A, D and I form an integral part of this standard. Annexes B, E, F, G, H and J are for information only.This publication is to be read in conjunction with IEC 60947-1:2007.