Standard 514C, Edition 4
UL 514C
ACTIVE

Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers

UL Standard
Published Date: April 08, 2014
Last Revision: June 18, 2026 ANSI Approved: June 18, 2026 DOD Approved: August 17, 1989

$402.00-$998.00

Revisions and Related Documents

Revisions
Red Line Std. (12)

Date      
June 18, 2026 Redline Revision
April 26, 2024 Redline Revision
August 18, 2020 Redline Revision
February 06, 2020 Redline Revision
November 30, 2018 Redline Revision
December 10, 2014 Redline Revision
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CSDS
Proposals (21)

CSDS Proposal   

CSDS Proposals

An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:

  • A revision of a single or multiple requirement(s).
  • A complete new edition of an existing Standard or Outline.
  • A new Standard or Outline that has not previously been published.

CSDS Proposals provide access to view the proposal and submit comments within UL's Collaborative Standards Development System (CSDS) appropriately.

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April 10, 2026
January 30, 2026
January 23, 2026
August 29, 2025
August 22, 2025
May 16, 2025
April 05, 2024
March 01, 2024
November 24, 2023
August 25, 2023
December 09, 2022
February 25, 2022
November 05, 2021
March 22, 2019
January 11, 2019
September 28, 2018
June 22, 2018
October 03, 2014
August 01, 2014
May 28, 2014
April 09, 2014
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UL LLC CRD (3)

UL LLC - Certification Requirement Decision    Learn more about CRDs
October 28, 2022
October 15, 2021
January 15, 2020
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Other Updates (0)

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Referenced Standards (13)

Below is a list of UL Standards referenced in UL 514C

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Reverse Referenced Standards (94)

UL 514C is referenced in the following list of UL Standards

StandardEditionTitle
50 14 Enclosures for Electrical Equipment, Non-Environmental Considerations
82 9 Electric Gardening Appliances
127 10 Factory-Built Fireplaces
141 9 Garment Finishing Appliances
174 11 Household Electric Storage Tank Water Heaters
209 10 Cellular Metal Floor Raceways and Fittings
234 5 Low Voltage Lighting Fixtures for Use in Recreational Vehicles
244B 1 Field Installed and/or Field Connected Appliance Controls
291 6 Automated Teller Systems
295 2 Commercial-Industrial Gas Burners
296 11 Oil Burners
343 9 Pumps for Oil-Burning Appliances
353 5 Standard for Limit Controls
365 5 Standard for Police Station Connected Burglar Alarm Units and Systems
416 4 Standard for Refrigerated Medical Equipment
430 8 Waste Disposers
474 10 Standard for Dehumidifiers
497A 3 Secondary Protectors for Communications Circuits
498D 1 Attachment Plugs, Cord Connectors and Receptacles with Arcuate (Locking Type) Contacts
498E 1 Attachment Plugs, Cord Connectors and Receptacles - Enclosure Types for Environmental Protection
498F 1 Plugs, Socket-Outlets and Couplers with Arcuate (Locking Type) Contacts
498M 1 Marine Shore Power Inlets
506 14 Specialty Transformers
514A 12 Metallic Outlet Boxes
561 7 Floor-Finishing Machines
603 5 Standard for Power Supplies for Use with Burglar-Alarm Systems
609 12 Standard for Local Burglar Alarm Units and Systems
634 9 Connectors and Switches for Use with Burglar-Alarm Systems
635 3 Insulating Bushings
636 11 Standard for Holdup Alarm Units and Systems
639 8 Intrusion-Detection Units
651 8 Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings
680 8 Emergency Vault Ventilators and Vault-Ventilating Ports
705 7 Power Ventilators
710C 3 Outline of Investigation for Ultraviolet Radiation Systems for Use in the Ventilation Control of Commercial Cooking Operations
726 7 Oil-Fired Boiler Assemblies
737 11 Fireplace Stoves
751 9 Vending Machines
752 12 Bullet-Resisting Equipment
771 9 Night Depositories
775 3 Standard for Graphic Arts Equipment
873 12 Standard for Temperature-Indicating and -Regulating Equipment
875 10 Electric Dry-Bath Heaters
884 13 Underfloor Raceways and Fittings
913 8 Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations
924 10 Emergency Lighting and Power Equipment
961 5 Electric Hobby and Sports Equipment
979 4 Water Treatment Appliances
987 8 Stationary and Fixed Electric Tools
1008A 2 Transfer Switch Equipment, Over 1000 Volts
1018 6 Electric Aquarium Equipment
1023 7 Household Burglar-Alarm System Units
1034 6 Burglary-Resistant Electric Locking Mechanisms
1037 6 Antitheft Alarms and Devices
1076 6 Proprietary Burglar Alarm Units and Systems
1090 7 Electric Snow Movers
1168 2 Standard for Recreational Boats
1241 7 Junction Boxes for Swimming Pool Luminaires
1340 3 Hoists
1431 3 Personal Hygiene and Health Care Appliances
1447 6 Electric Lawn Mowers
1449 5 Surge Protective Devices
1472 2 Solid-State Dimming Controls
1480A 1 Speakers for Commercial and Professional Use
1559 5 Insect-Control Equipment - Electrocution Type
1561 4 Dry-Type General Purpose and Power Transformers
1563 7 Electric Spas, Equipment Assemblies, and Associated Equipment
1574 3 Track Lighting Systems
1576 2 Flashlights and Lanterns
1594 4 Sewing and Cutting Machines
1598A 1 Supplemental Requirements for Luminaires for Installation on Marine Vessels
1610 4 Central-Station Burglar-Alarm Units
1653 3 Electrical Nonmetallic Tubing
1703 3 Flat-Plate Photovoltaic Modules and Panels
1812 5 Ducted Heat Recovery Ventilators
1863 4 Communications-Circuit Accessories
1889 2 Commercial Filters for Cooking Oil
1994 4 Luminous Egress Path Marking Systems
2157 5 Standard for Electric Clothes Washing Machines and Extractors
2158 6 Electric Clothes Dryers
2161 2 Standard for Neon Transformers and Power Supplies
2255 3 Receptacle Closures
2344 2 Material Lifts
2416 1 Audio/Video, Information and Communication Technology Equipment Cabinet, Enclosure and Rack Systems
2996 1 In-Ground Outlet Boxes
3703 1 Solar Trackers
3730 1 Photovoltaic Junction Boxes
6142 2 Small Wind Turbine Systems
6200 1 Controllers for Use in Power Production
6200 1 Controllers for Use in Power Production
5085-1 1 Low Voltage Transformers - Part 1: General Requirements
62986 1 Plugs, Socket-Outlets and Couplers with Arcuate Contacts
60079-0 7 Explosive Atmospheres - Part 0: Equipment - General Requirements
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
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