1 Scope

1.1 These requirements cover FITTINGS for use with cable and conduit intended for installation in accordance with the National Electrical Code, ANSI/NFPA 70, the Canadian Electrical Code (CE Code), Part I, CSA C22.1, and the Standard for Electrical Installations, NOM-001-SEDE.

1.2 These requirements cover CONDUIT LOCKNUTS, conduit BUSHINGS, metal stud BUSHINGS, CONDUIT BODIES, and entrance ELBOWS; FITTINGS for electrical metallic tubing, flexible metal conduit, intermediate metal conduit, liquid-tight flexible conduit, rigid metal conduit, and SERVICE-ENTRANCE HEADS; FITTINGS or box clamps referenced from other standards for armored cable, metal-clad cable, aluminum-sheathed cable, mineral-insulated cable, nonmetallic-sheathed cable, service-entrance cable, and tray cable, and submersible FITTINGS; FITTINGS for flexible cord, flexible nonmetallic and metallic tubing, INSULATING BUSHINGS, grips, reducing washers, and NIPPLES.

Note 1: In Canada, fittings for metal-clad (MC) cable, intermediate metal conduit (IMC), flexible metallic tubing, flexible nonmetallic tubing, and CONDUIT BODIES are not recognized. CONDUIT BODIES are considered FITTINGS.

Note 2: In Canada, armored cable includes Type TECK cable.

Note 3: In Canada, tray cable includes any "TC rated" cable.

Note 4: In Mexico and the United States, requirements for submersible FITTINGS are provided in NMX-J-235/2-ANCE or UL 50E.

Note 5: In Mexico, intermediate metal conduit is designated as semi-heavy metal conduit.

1.3 In Mexico and the United States, these requirements cover CONDUIT BODIES for rigid polyvinyl chloride (PVC) conduit. These products are intended to be used with Schedule 40, Type EB, Type A and Schedule 80 PVC conduit, ELBOWS, and other bends.

In Canada, requirements for fittings intended for use with rigid PVC conduit are addressed in CSA C22.2 No. 85.

1.4 These requirements do not cover FITTINGS intended for use in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70, the Canadian Electrical Code (CE Code), Part I, CSA C22.1, and the Standard for Electrical Installations, NOM-001-SEDE.

1.5 These requirements do not cover FITTINGS intended for use with surface raceway systems.

1.6 These requirements do not cover conduit NIPPLES, threaded ELBOWS, and threaded COUPLINGS intended for use with rigid metal conduit or intermediate metal conduit.

1.7 In addition to covering male threaded FITTINGS for use with cable and conduit, these requirements also cover male threaded FITTINGS for use with or without a locknut and intended for securement to enclosures:

1. a) having threaded openings or knockouts, or

2. b) fittings with internal female threads (e.g., HUBs, conduit bodies, couplings).

1.8 These requirements cover cable fittings that are intended to be used with:

1. a) specific corresponding single-conductor PV wire or distributed generation DG in the US and Mexico; and type RPVU cable, of all sizes in Canada;

2. b) distributed generation Type DG cables in the US and Mexico; and

3. c) Type RPVU cable of all sizes in Canada.

Note 1: In US and Mexico, Distributed Generation DG cable is a multi-conductor, nonintegrally jacketed, cable intended for use in distributed generation applications with specific equipment/devices such as photovoltaic modules, inverters, rapid shutdown equipment, solar trackers, etc. In the US and Mexico, Type DG cable is evaluated in accordance with Outline of Investigation for Distributed Generation Cables, UL 3003.

Note 2: In Canada, Type “RPVU” rated cables are evaluated in accordance with CSA C22.2 No. 271, Photovoltaic cables.

Note 3: In the US and Mexico, Type PV wire is evaluated in accordance with the Standard for Photovoltaic Wire, UL 4703.

Summary of Topics

This revision of ANSI/UL 514B dated March 28, 2024 includes the following changes in requirements:

– Replacement of Figure 16

– Clarification of sample requirements; 8.1.6

– Electrical Metallic Tubing Fittings, addition of trade sizes 5” & 6”; 5.5.1.2, 5.5.2.2, 7.3.1, Table 7, Table 14, Table 15, Table 23, Table 24

– Distributed generation DG cable fittings; 1.8, Section 7.20, Section 8.41, and Table 44

– Push-to-connect fittings; 3.18A, Section 5.22, Section 7.21, Section 8.40

– Revision of definition for HEAVY DUTY FITTING FOR LIQUID-TIGHT FLEXIBLE METAL CONDUIT; 3.22A

– Male Threaded Fittings provided with a LOCKNUT and also intended for securement to: • Enclosures with threaded entries, or • Fittings with internal female threads (e.g., HUBs, conduit bodies, couplings). (1.7, 4.5, 7.11.2, 7.11.3, 8.1.7, Section 8.42, Table 19)

– Editorial corrections; Table 33