Splicing Wire Connectors
1.1 This Standard applies to single-polarity, hand- or tool-applied splicing wire and cable connectors intended for use with all alloys of copper, aluminum conductors, or copper-clad aluminum conductors, or all three, 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) connectors intended to hold two or more conductor(s);
b) connectors intended for use in appliances and equipment that comply with the requirements for such appliances and equipment;
c) connectors intended for use with 6 AWG (13.3 mm2) or smaller conductors; and
d) uninsulated connectors that are used in circuits rated 8 000 V and less.
Note: Examples of splicing wire connectors include twist-on connectors, insulation-piercing or displacement connectors, spring-action connectors, tool-applied crimp, mechanical set-screw connectors, etc.
1.2 This Standard is intended for splicing wire connectors suitable for use with conductors in the size ranges as follows:
1) 12 AWG (3.3 mm2) and 10 AWG (5.3 mm2) solid;
2) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and compact; and
3) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded single input wire (SIW).
In Mexico, the use of aluminum conductors is permitted only with thermoset insulation and for sizes of 6 AWG (13.3 mm2) and higher.
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 mm2) and 10 AWG (5.3 mm2) solid; and
ii) 12 AWG (3.3 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric, compressed, and Class C concentric.
1) 30 AWG (0.05 mm2) to 10 AWG (5.3 mm2) solid; and
2) 30 AWG (0.05 mm2) to 6 AWG (13.3 mm2) stranded, Class B concentric and compressed, and Class C concentric.
d) Compact-stranded copper conductors:
In Canada and Mexico, for 8 AWG (8.4 mm2) and 6 AWG (13.3 mm2).
In the United States this is not applicable.
e) Rigid (solid and stranded) metric wire falling within the ranges of the above AWG sizes.
Note: For example, a connector rated for 6 AWG (13.3 mm2) - 14 AWG (2.1 mm2) may be additionally rated for 10 - 2.5 mm2.
f) Other class and strand configurations as indicated by marking.
1.3 These requirements cover splicing wire connectors intended for:
c) copper-clad aluminum-to-copper-clad aluminum;
d) copper-to-aluminum or copper-clad aluminum and aluminum-to-copper-clad aluminum conductor combinations intended for intermixing of conductors and dry locations only; or
e) all of the above.
1.4 This Standard is intended for splicing wire 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.
1.5 This Standard does not apply to:
a) insulated splicing wire connectors intended for use at voltage levels in excess of 600 V [1 000 V in a sign or luminaire];
b) terminal wire connectors;
c) wire binding screw terminals;
d) built-in terminal connectors on devices rated less than 30 A and intended for outlet box mounting or having provision for stress relief;
e) built-in terminal connectors on devices having integral cable clamps;
f) flat quick connect terminals; and
g) soldering lugs.
- UL Harmonized Standard Title Page
- Table of Contents
- 1 Scope
- 2 Reference publications
- 2.1 Normative references
- 2.2 Informative references
- 3 Units of measure
- 4 Definitions
- 5 Symbols and abbreviations
- 6 Construction requirements
- 6.1 General
- 6.2 Intermixing
- 6.3 Materials
- 7 Test requirements
- 7.1 General
- 7.2 Current cycling
- 7.3 Static-heating sequence
- 7.4 Mechanical sequence
- 7.5 Dielectric-withstand test sequence
- 7.6 Secureness of insulation
- 7.7 Flexing
- 7.8 Low temperature installation
- 7.9 Moisture absorption
- 7.10 Stress corrosion/moist ammonia (NH)
- 7.11 Stress corrosion/mercurous nitrate (HgNO)
- 7.12 Spring action
- 7.13 Over-torque
- 7.14 Separable part securement
- 8 Sampling requirements
- 8.1 General
- 8.2 Current cycling
- 8.3 Static-heating sequence
- 8.4 Mechanical sequence
- 8.5 Dielectric withstand
- 8.6 Secureness of insulation
- 8.7 Flexing
- 8.8 Low temperature installation
- 8.9 Moisture absorption
- 8.10 Stress corrosion/moist ammonia (NH)
- 8.11 Stress corrosion/mercurous nitrate (HgNO)
- 8.12 Spring-action sequence
- 8.13 Over-torque
- 8.14 Separable part securement
- 9 Test methods
- 9.1 General
- 9.2 Current cycling
- 9.3 Static-heating sequence
- 9.4 Mechanical sequence
- 9.5 Dielectric withstand
- 9.6 Secureness of insulation
- 9.7 Flexing
- 9.8 Low temperature installation
- 9.9 Moisture absorption
- 9.10 Stress corrosion/moist ammonia (NH)
- 9.11 Stress corrosion/mercurous nitrate (HgNO)
- 9.12 Spring-action sequence
- 9.13 Over-torque
- 9.14 Separable part securement
- 10 Marking, labeling, and packaging
- Annex A - Informative references
- Annex B - Flammability test (material V-2 and VTM-2)
- Annex C - Example of stability factor calculation
- Annex D - Example of applying and
- Annex E - Example of applying
- Annex F - Marking Locations Guide
- Edition Number: 6
- Edition Date: 01/11/2013
- Price Code: B
- Type: ulcsance
- ANSI Approved: 01/20/2016
- DOD Approved: 01/28/1992