Medium-voltage ac contactors, controllers, and control centres
Scope:
This Standard is applicable to ac contactors with rated voltages of 1501 to 7200 V, and metal-enclosed contactor-based controllers, control centres, and other control assemblies and associated equipment with rated voltages of 751 to 7200 V, designed for operation at frequencies of 50 or 60 Hz on three-phase systems. These requirements cover equipment intended for use in ordinary (non-hazardous) 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 does not cover (a) equipment for use in classified 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).
Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.
Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.