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      • CAN/CSA-C22.2 NO. 177-92 (R2012)

      Codes & Standards - Purchase

      CAN/CSA-C22.2 NO. 177-92 (R2012)

      Clock-Operated Switches
      SKU: 2412430 Published by CSA Group Publication Year 1992 Reaffirmed in 2012 53 pages Withdrawn

      Product Details

      • Preface/Scope
      General instruction #2 to this standard is available.

      Scope

      1.1
      This Standard applies to clock-operated switches, rated 600 V or less, designed to be used in ordinary locations to close and open circuits to a load at predetermined intervals, and intended to be employed in accordance with the Rules of the Canadian Electrical Code, Part I. The clock-operated switches discussed in this Standard may be

      (a) completely enclosed, plug-in, or cord-connected;
      (b) incomplete in their enclosure or in other constructional features; or
      (c) restricted in performance capabilities for use in other equipment.

      1.2
      This Standard applies to clock-operated switches in which the switching contacts are actuated by a clock-work, a gear-train, hand, electrically wound spring motors, electric clock-type motors, electronic circuits, or equivalent arrangements. In addition to closing and/or opening the switching contacts, the clock-operated switches may also indicate the time of day or time interval. Requirements for TV-rated clock-operated switches are also given.

      1.3
      The word switch, when used without further qualification in subsequent Clauses of this Standard, denotes a clock-operated switch.
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      Radio input
      Radio input
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      GST REG No R119441681
      QST REG No R1006017360

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