1.1 Scope
1.1.1 These fuseholders and devices accommodate fuses to be employed in electrical circuits and are
intended to be used in accordance with the Canadian Electrical Code, Part I (CE Code Part I), CSA C22.1,
the National Electrical Code (NEC), ANSI/NFPA 70, or the Mexican Electrical Code, NOM-001.
1.1.2 These requirements cover:
a) Fuseholders for fuses intended for use with fuse classes covered in the ANCE NMX-J-009-
248; CSA C22.2 No. 248 and UL 248 series of standards, Parts 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14 and 15; and
b) Fuseholder accessories (such as covers, indicators, adapters, etc.).
1.2 Object
1.2.1 This Standard and its subsequent parts establish the characteristics, construction, operating
conditions, markings, and test conditions for fuseholders.
1.3 Units of measurement
1.3.1 The values given in SI (metric) shall be normative. Any other values given shall be for information
purposes only.
1.4 Undated reference
1.4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall
be interpreted as referring to the latest edition of that code or standard.
1.4.2 When a reference is made to another code or standard, the product shall comply with the code or
standard of the country in which the product is intended to be used.
1.4.3 In Canada, general requirements applicable to this standard are given in CSA C22.2 No. 0, General
Requirements – Canadian Electrical Code, Part II.
2007CSA C22.2 NO.4248.1-2007 Porte-fusibles - Partie 1 : exigences générales (Première édition; Mise à jour no. 1: Novembre 2007; Mise à jour no 2: Octobre 2013)