Standard 943, Edition 5
UL 943

Ground-Fault Circuit-Interrupters

UL Standard Edition 5 Published Date: May 17, 2016 Last Revision: September 05, 2023 ANSI Approved: September 05, 2023 DOD Approved: November 30, 1994


Revisions and Related Documents

Red Line Std. (4)

September 05, 2023 Redline Revision
February 23, 2018 Redline Revision
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Proposals (9)

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.


April 30, 2024
October 07, 2022
December 17, 2021
June 02, 2021
September 13, 2019
August 25, 2017
January 19, 2017
August 19, 2016
June 05, 2015
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Other Updates (1)

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Standards interpretation    Summary of Topics (SOT)
May 26, 2020 N/A
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Referenced Standards (0)

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Reverse Referenced Standards (43)

UL 943 is referenced in the following list of UL Standards

82 9 Electric Gardening Appliances
101 6 Leakage Current for Utilization Equipment
111 8 Outline of Investigation for Multioutlet Assemblies
122 5 Standard for Photographic Equipment
141 9 Garment Finishing Appliances
197 10 Commercial Electric Cooking Appliances
353 5 Standard for Limit Controls
355 10 Cord Reels
458 6 Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts
471 10 Standard for Commercial Refrigerators and Freezers
489B 1 Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures for Use with Photovoltaic (PV) Systems
498B 1 Receptacles with Integral Switching Means
498D 1 Attachment Plugs, Cord Connectors and Receptacles with Arcuate (Locking Type) Contacts
498F 1 Plugs, Socket-Outlets and Couplers with Arcuate (Locking Type) Contacts
636 11 Standard for Holdup Alarm Units and Systems
749 12 Household Dishwashers
775 3 Standard for Graphic Arts Equipment
859 11 Household Electric Personal Grooming Appliances
913 8 Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations
943B 3 Appliance Leakage-Current Interrupters
963 4 Standard for Sealing, Wrapping, and Marking Equipment
970 1 Retail Fixtures and Merchandise Displays
987 8 Standard for Stationary and Fixed Electric Tools
1008 9 Transfer Switch Equipment
1008A 2 Transfer Switch Equipment, Over 1000 Volts
1008B 2 Outline of Investigation for Source Interconnection Switches
1081 7 Swimming Pool Pumps, Filters, and Chlorinators
1261 6 Electric Water Heaters for Pools and Tubs
1399 1 Outline of Investigation for Leakage Current Measurement Devices for Use in Marina Applications
1431 3 Personal Hygiene and Health Care Appliances
1447 6 Standard for Electric Lawn Mowers
1559 5 Insect-Control Equipment - Electrocution Type
1776 3 High-Pressure Cleaning Machines
2021 4 Fixed and Location-Dedicated Electric Room Heaters
2200 3 Stationary Engine Generator Assemblies
2442 2 Wall- and Ceiling-Mounts and Accessories
2231-1 2 Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits; Part 1: General Requirements
2231-2 2 Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: Particular Requirements for Protection Devices for Use in Charging Systems
60335-1 6 Standard for Safety of Household and Similar Appliances, Part 1: General Requirements
60745-1 4 Hand-Held Motor-Operated Electric Tools - Safety - Part 1: General Requirements
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
62841-1 1 Electric Motor-Operated Hand-Held Tools, Transportable Tools And Lawn And Garden Machinery - Safety - Part 1: General Requirements
60335-2-1000 1 Household and Similar Electrical Appliances: Particular Requirements for Electrically Powered Pool Lifts
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