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.
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Also applies to the operating devices of circuit-breakers and their auxiliary equipment. 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. Search all products by.
Your jec is empty. Click to learn more. The faster, easier way to work with standards. Two-pole circuit-breakers for use in single-phase systems are subject to agreement between manufacturer and user.
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July Replaced By: Learn more about the cookies we use and how to change your settings. We accept all major credit cards American Express, Mastercard and VisaPayPal and bank transfers as form of payment. However, circuit-breakers with a closing mechanism for dependent manual operation are not covered since a rated short-circuit-making current cannot be specified, and dependent manual operation may eic objectionable because of safety considerations.
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