Preface
This is the harmonized ANCE, CSA Group, and UL standard for Low-Voltage Switchgear and Controlgear - Part 7-4: Ancillary Equipment - PCB Terminal Blocks for Copper Conductors. It is the First edition of NMX-J-538/7-4-ANCE, CAN/CSA-C22.2 No. 60947-7-4, and UL 60947-7-4.
This harmonized standard is based on IEC Publication 60947-7-4: Edition 1 (2013), Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors, issued August 2013. IEC 60947-7-4 is copyrighted by the IEC.
This harmonized standard was prepared by the Association of Standardization and Certification (ANCE),
CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Subcommittee, THSC 121A WG5, of the Council on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknowledged.
This standard is considered suitable for use for conformity assessment within the stated scope of the standard.
The Mexican Standard was developed by the CT PIE-A from the Comite de Normalizacion de la Asociacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaboration of the manufacturers and users.
This standard was reviewed by the CSA Subcommittee on Terminal Assemblies, 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.
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