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    • CSA C22.2 NO. 253:20

    Codes & Standards - Purchase

    CSA C22.2 NO. 253:20

    Medium-voltage ac contactors, controllers, and control centres (Trinational standard with UL 347 and NMX-J-564/106-ANCE)

    SKU: 2427748 Published by CSA Group Publication Year 2020 130 pages

    Product Details

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    Preface


    This is the harmonized ANCE, CSA Group, and UL standard for Medium-voltage ac contactors, controllers, and control centres. It is the third edition of NMX-J-564/106-ANCE, the third edition of CSA C22.2 No. 253:20, and the seventh edition of UL 347. This edition of NMX-J-564/106-ANCE supersedes the previous edition published on January 2016. This edition of CSA C22.2 No. 253 supersedes the previous edition published on January 2016. This edition of UL 347 supersedes the previous edition published on January 29, 2016.


    Scope and object


    This standard is applicable to ac contactors applied at voltages in the range of 1 501V to 15kV, and metal-enclosed contactor-based controllers, control centers, and other control assemblies and associated equipment applied at voltages in the range of 751V to 15kV, designed for operation at frequencies of 50 or 60 Hz on three-phase systems. These requirements cover equipment intended for use in ordinary (nonhazardous) locations and installed in accordance with the applicable local installation codes and standards (see Annex A, Item 1). These requirements, as modified by the applicable national standards for fire pump controllers, also cover fire pump controllers (see Annex A, Item 2).


    This standard also includes requirements for controllers intended for service entrance applications. (See 5.204 and Annex A, Item 3.)


    This standard also includes requirements for equipment incorporating solid state switching elements intended for starting, stopping, regulating, controlling, or protecting heating and other resistive loads, having ac voltage ratings in the range of 1 501V to 15kV.


    This standard does not cover:


    a) equipment for use in classified (hazardous) locations as defined in the applicable installation codes or standards;


    b) components contained in contactors and contactor-based controllers for which individual component standards exist; and


    c) auxiliary low voltage control assemblies (see Annex A, Item 4).


    This standard also includes requirements for reduced-voltage solid state controllers. It does not, however, cover equipment consisting solely of electronic or solid state devices, circuits, or systems, nor does it cover electronic variable speed motor controllers (power conversion equipment). This standard does not cover controllers using only solid state devices in the main circuit.

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    C22.2 NO. 253-16

    Medium-voltage ac contactors, controllers, and control centres (Tri-national standard with UL 347 and NMX-J-564/106-ANCE)

    Withdrawn
    English

    C22.2 NO. 253-09 (R2014)

    C22.2 NO. 253-09 (R2014) - Medium-voltage ac contactors, controllers, and control centres (Tri-national standard, with UL 347 and NMX-J-564/106-ANCE- 2009)

    Withdrawn
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