Low-voltage fuses - Part 9: Class K fuses

Designation Number:
CSA C22.2 NO. 248.9
Standard Type:
National Standard of Canada - Domestic
Standard Sub-Type
Tri-National
Standard Development Activity:
New Edition
ICS code(s):
29.120.50
Status:
Open for SDO comment
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

1.1 This Part is intended to be read together with the Standard for Low-Voltage Fuses – Part 1: General Requirements, hereafter referred to as Part 1. The titles of the Clauses in this Part correspond to the similarly titled Clauses in Part 1. The requirements of Part 1 apply unless modified by this Part. For the Part 1 requirements, refer to the Standard for Low-Voltage Fuses – Part 1: General Requirements, NMX-J-009-248/1-ANCE / CSA C22.2 No. 248.1 / UL 248-1.

 

1.2 This Part applies to Class K fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional.

Project need:

ULSE proposes a New Edition of UL/ CSA 248-9.  This new edition of UL/ CSA 248-9 incorporates several editorial changes including renumbering and reformatting to align with current style. The previous edition was published in year 2000.  This new edition will provide a fresher look and feel. This proposed  New Edition is being developed at the request of manufacturers, certification bodies, and the CANENA Technical Harmonization Committee 32B. It will provide the industry with a standard Class K fuses rated 600 A or less and either 250 or 600 V ac. DC ratings are optional. This will meet the strategic needs of the following key interests:

  1. ensuring that the latest innovative/technology/safety features are available for users,
  2. addressing needs of regulators by providing suitable requirements; and   
  3. supporting certification bodies.

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.