Preface
This is the common ANCE, CSA Group, and UL standard for Fuseholders – Part 6: Class H. It is the first edition of NMX-J-009/4248/6-ANCE, the first edition of CSA C22.2 No. 4248-6, and the first edition of UL 4248-6.
This common standard was prepared by the Association of Standardization and Certification (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the CANENA Technical Harmonization Subcommittee 32B – Fuseholders are gratefully appreciated.
This standard is considered suitable for use for conformity assessment within the stated scope of the standard.
This standard was reviewed by the CSA Subcommittee on Low voltage fuses, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee.
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard.
A UL standard is current only if it incorporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements.
Where reference is made to a specific number of samples to be tested, the specified number shall be considered a minimum quantity.
Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose.
Scope
1.1.2
These requirements cover fuseholders intended for use with Class H Fuses as described in NMX-J-009/248/6-2000-ANCE, CSA C22.2 No. 248.6, UL 248-6, Low-Voltage Fuses - Part 6: Class H Non-Renewable; and NMX-J-009/248/7-2000-ANCE, CSA C22.2 No. 248.7, UL 248-7, Low-Voltage Fuses - Part 7: Class H Renewable Fuses.