scope:

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, 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.

a) Pressure wire connectors intended to hold one or more conductor(s);

b) Connectors intended for use in appliances and equipment that comply with the requirements for such appliances and equipment;

c) Soldering connectors;

d) Splicing wire connectors intended for use with 4 AWG (21.2 mm²) 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 mm²).

e) Neutral bars;

f) Uninsulated connectors that are used in circuits rated 35 000 V and below;

g) Ampere-rated connectors not intended for general use; and

h) Insulation piercing connectors.

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:

a) 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.

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

a) Aluminum:

1) 12 AWG (3.3 mm²) and 10 AWG (5.3 mm²) solid;

2) 12 AWG (3.3 mm²) to 2 000 kcmil (1 010 mm²) stranded, Class B concentric, compressed, and compact; and

3) 12 AWG (3.3 mm²) to 1 000 kcmil (508 mm²) 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: