Find the most up-to-date version of IEC at Engineering Buy IEC Ed. High-voltage alternating-current circuit-breakers from SAI Global. IEC High Voltage Alternating Current Circuit Breakers. Be notified when this Standard is updated or amended – Add to StandardsWatch. General.
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Applies only to three-pole circuit-breakers for use in three-phase systems and single-pole circuit-breakers for use in single-phase systems. The faster, easier way to work with standards. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.
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Learn more about the cookies we use and how to change your settings. However, circuit-breakers with jec closing mechanism for dependent manual operation are not covered since a rated short-circuit-making current cannot be specified, and dependent manual operation may be objectionable because of safety considerations.
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Replaces IEC to You may experience issues viewing this site in Internet Explorer 9, 10 or Find Similar Items This product falls into the following categories. Does not cover circuit-breakers intended for use on motive power units of electrical traction equipment, or circuit-breakers for use with overhead lines which include series capacitors.
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Metallgekapselte Wechselstrom-Schaltanlagen fuer Nennspannungen ueber 1 kV bis einschliesslich 52 kV. July Replaced By: Also applies to the operating devices of circuit-breakers and their auxiliary equipment.
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