1 1.2 These requirements cover fuseholders intended for use with Class K Fuses as described in NMX-J-009/248/9-2000-ANCE, CSA C22.2 No. 248.9, UL 248-9, Low-Voltage Fuses – Part 9: Class K Fuses.
The UL 4248-9 standard is the Part 9 of a harmonized trinational set of standards developed to complement the harmonized trinational UL 248 series of standards in that it consists of a Part 1 containing General Requirements applicable to all fuseholders and 8 subsequent Parts specific to a corresponding single Class of fuseholder. This bulletin supersedes the bulletin dated May 19, 2006.
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