Preface

This is the harmonized ANCE, CSA Group, and UL standard for Fuseholders - Part 12: Class R. It is the second edition of NMX-J-009/4248/12-ANCE, the second edition of CAN/CSA-C22.2 No. 4248.12, and the second edition of UL 4248-12. This edition of CAN/CSA-C22.2 No. 4248.12 supersedes the previous edition published on February 28, 2007. This edition of UL 4248-12 supersedes the previous edition published on February 28, 2007.

1 General

This Part is intended to be read together with the Standard for Fuseholders ? Part 1: General Requirements, hereafter referred to as Part 1. The numbering of the Clauses in this Part corresponds to like numbered Clauses in Part 1. The requirements of Part 1 apply unless modified by this Part. For Clauses not shown below, refer to the Standard for Fuseholders ? Part 1: General Requirements, NMX-J-009-4248-ANCE, CSA C22.2 No. 4248.1, UL 4248-1.

1.1 Scope

1.1.2
These requirements cover fuseholders intended for use with Class R Fuses as described in NMX-J-009/248/12-2000-ANCE, CSA C22.2 No. 248.12, UL 248-12, Low-Voltage Fuses ? Part 12: Class R Fuses.