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CSA C22.2 NO. 65:25

Current Revision

Wire connectors (Trinational standard with NMX-J-543-ANCE-2025 and UL 486A-486B)

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Wire connectors (Trinational standard with NMX-J-543-ANCE-2025 and UL 486A-486B)

Preface

This is the harmonized ANCE, CSA Group, and ULSE standard for Wire Connectors . It is the fifth edition of NMX-J-543-ANCE, the seventh edition of CSA C22.2 No. 65, and the fourth edition of UL 486A-486B. This edition of NMX-J-543-ANCE supersedes the previous edition published on July 20, 2023. This edition of CSA C22.2 No. 65 supersedes the previous edition published on January 11, 2013 and April 27, 2018. This edition of UL 486A-486B supersedes the previous edition published on April 27, 2018. This harmonized standard was prepared by the Association of Standardization and Certification (ANCE), CSA Group, and ULSE Inc. (ULSE). The efforts and support of the Technical Harmonization Committee for Connectors, 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 present Mexican standard was developed by the SC 20D – Conectadores part of the CT 20 – Conductores from the Comite de Normalizacion de la Asociacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaboration of the connectors manufacturers and users. This standard was reviewed by the CSA Integrated Committee on Electrical Connectors, under the jurisdiction of the CSA Technical Committee on Wiring 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.

Scope
1.1

This Standard applies to single-polarity connectors for use with all alloys of copper or aluminum, or copper-clad aluminum conductors, or all three, for providing contacts between current-carrying parts, in accordance with the Canadian Electrical Code, Part I, CSA C22.1, in Canada, the National Electrical Code, NFPA 70, in the United States of America, or the Standard for Electrical Installations, NOM-001-SEDE, in Mexico, as follows: NOTE: Copper-clad aluminum conductors are for use only in the United States in accordance with the National Electrical Code, NFPA 70.

  1. Pressure wire connectors intended to hold one or more conductor(s)
  2. Connectors intended for use in appliances and equipment that comply with the requirements for such appliances and equipment
  3. Soldering connectors
  4. Splicing wire connectors intended for use with 4 AWG (21.2 mm 2 ) or larger conductors; NOTE: A splicing wire and cable connector taking a range of conductor sizes may include conductor sizes smaller than 4 AWG (21.2 mm 2 ). e) Neutral bars
  5. Uninsulated connectors that are used in circuits rated 35 000 V and below
  6. Ampere-rated connectors not intended for general use
  7. Insulation piercing connectors
  8. Exothermically welded wire connectors
  9. Pressure connectors and devices for splices and taps installed on service conductors
  10. Multi-tap connectors
  11. and Run and tap connectors
1.2

Connectors covered by this Standard are also suitable for use with conductors that are prepared using ferrules evaluated in accordance with CSA C22.2 No. 291-14 / UL 486F, or wire connector adapters evaluated in accordance with this Standard, under the following conditions

  1. Ferrules and adapters are applied in accordance with their ratings and installation instructions. b) The length of exposed conductive material maintains the strip lengths required by the connector manufacturer
1.3

This Standard is intended for connectors suitable for use with conductors in the size ranges as follows

  1. Aluminum: 1) 12 AWG (3.3 mm 2 ) and 10 AWG (5.3 mm 2 ) solid
  2. 2) 12 AWG (3.3 mm 2 ) to 2 000 kcmil (1 010 mm 2 ) stranded, Class B concentric, compressed, and compact
  3. and 3) 12 AWG (3.3 mm 2 ) to 1 000 kcmil (508 mm 2 ) stranded single input wire (SIW). b) Copper-clad aluminum: 1) In Canada, this construction is not allowed. 2) In Mexico, this construction is not allowed. 3) In the United States: i) 12 AWG (3.3 mm 2 ) and 10 AWG (5.3 mm 2 ) solid
  4. and ii) 12 AWG (3.3 mm 2 ) to 2 000 kcmil (1 010 mm 2 ) stranded, Class B concentric, compressed, and Class C concentric. c) Copper: 1) 30 AWG (0.05 mm 2 ) to 10 AWG (5.3 mm 2 ) solid
  5. and 2) 30 AWG (0.05 mm 2 ) to 2 000 kcmil (1 010 mm 2 ) stranded, Class B concentric and compressed, and Class C concentric. d) Compact-stranded copper conductors: 1) In Canada for 8 AWG (8.4 mm 2 ) and larger
  6. 2) In the United States for 2 AWG (33.6 mm 2 ) and larger
  7. and 3) In Mexico for 8 AWG (8.4 mm 2 ) and larger. e) Rigid (solid and stranded) metric wire sizes, Classes 1, 2, 5, and 6, in the range of 0.5 – 2 500 mm 2 , in addition to AWG/kcmil sizes, with AWG/kcmil ratings mandatory and metric wire ratings optional. NOTE 1: Metric wire sizes are based on the IEC Standard for Conductors of Insulated Cables, IEC 60228. NOTE 2: For example, a connector rated for 6 AWG – 350 kcmil may be additionally rated for 16 – 185 mm 2 . See Annex B for example. f) Other class and strand configurations as indicated by marking
1.4

This Standard is intended for connectors suitable for currents not exceeding the ampacity of insulated conductors rated 75 °C or 90 °C in accordance with the rating of the connector, if provided.

1.5

These requirements cover insulated connectors, insulating caps, and covers intended for use at 2 000 volts or less and uninsulated connectors for use in general use circuits rated 35 000 volts nominal or less. In Canada, uninsulated connectors may also be used in applications up to 5 000 volts phase-to-phase where allowed and installed in accordance with Section 36 of the Canadian Electrical Code, Part I, CSA C22.1. For products intended for use in Canada, general requirements are given in CSA C22.2 No. 0.

1.6

This Standard does not apply to

  1. Insulated connectors for voltage levels above 2 000 V
  2. Manual twist-on connectors
  3. Built-in terminal connectors in devices rated less than 30 A intended for outlet box mounting or having provision for stress relief
  4. Flat quick connect terminals
  5. Wire binding screw terminals
  6. and Bare or covered ferrules intended for use with 1/0 – 20 AWG stranded copper conductors
SDO CSA: Canadian Standards Association
Document Number
Publication Date Jan. 1, 2025
Language en - English
Page Count 109
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2025 CSA C22.2 NO. 65:25 Revision