IEC 60470 Ed. 2.0 b PDF
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High-voltage alternating current contactors and contactor-based motor-starters
Published by | Publication Date | Number of Pages |
IEC | 10/20/1999 | 155 |
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IEC 60470 Ed. 2.0 b – High-voltage alternating current contactors and contactor-based motor-starters
Applicable to a.c. contactors and/or contactor-based motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 000 V but not exceeding 12 000 V.Applicable only to three-pole contactors and starters for use in three-phase systems and single-pole contactors and starters for use in single-phase systems.
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