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About This Item


Full Description

IEC 60050-445:2010 defines terms related to specified-time relays. This second edition cancels and replaces the first edition published in 2002 and constitutes a technical edition. It has the status of a horizontal standard in accordance with IEC Guide 108. This new edition has been revised in order to:
- incorporate terms more commonly used by industry;
- incorporate timing charts to help explain definitions involving a sequence of operations.

Document History

  1. IEC 60050-445 Ed. 2.0 b:2010

    👀 currently

    International Electrotechnical Vocabulary (IEV) - Part 445: Time relays

    • Most Recent
  2. IEC 60050-445 Ed. 1.0 b:2002

    International Electrotechnical Vocabulary - Part 445: Specified time all-or-nothing relays

    • Historical Version