Standard 20, Edition 14
UL 20

General-Use Snap Switches

UL Standard Edition 14 Published Date: July 20, 2018 Last Revision: May 31, 2023 ANSI Approved: May 31, 2023 DOD Approved: December 04, 1981

$505.00-$1,258.00

Revisions and Related Documents

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May 31, 2023 Redline Revision
January 26, 2021 Redline Revision
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August 12, 2022
June 08, 2022
January 21, 2022
April 17, 2020
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October 31, 2023
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Referenced Standards (18)

Reverse Referenced Standards (102)

UL 20 is referenced in the following list of UL Standards

StandardEditionTitle
5 15 Surface Metal Raceways and Fittings
5A 4 Nonmetallic Surface Raceways and Fittings
5B 2 Strut-Type Channel Raceways and Fittings
69 10 Electric-Fence Controllers
82 9 Electric Gardening Appliances
111 8 Outline of Investigation for Multioutlet Assemblies
130 13 Standard for Electric Heating Pads
183 4 Manufactured Wiring Systems
234 5 Standard for Low Voltage Lighting Fixtures for Use in Recreational Vehicles
268A 4 Smoke Detectors for Duct Application
268C 1 Outline of Investigation for Multi-Detector Test Apparatus
291 6 Automated Teller Systems
307A 9 Standard for Liquid Fuel-Burning Heating Appliances for Manufactured Homes and Recreational Vehicles
307B 5 Standard for Gas-Burning Heating Appliances For Manufactured Homes and Recreational Vehicles
353 5 Standard for Limit Controls
355 10 Cord Reels
365 5 Standard for Police Station Connected Burglar Alarm Units and Systems
391 5 Standard for Solid-Fuel and Combination-Fuel Central and Supplementary Furnaces
412 5 Refrigeration Unit Coolers
416 4 Standard for Refrigerated Medical Equipment
462 3 Standard for Heat Reclaimers for Gas-, Oil-, or Solid Fuel-Fired Appliances
464A 1 Audible Signal Appliances for General Signaling Use
469 4 Standard for Musical Instruments and Accessories
471 10 Standard for Commercial Refrigerators and Freezers
498B 1 Receptacles with Integral Switching Means
498C 1 Flatiron and Appliance Plugs
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
499 14 Electric Heating Appliances
506 14 Specialty Transformers
539 8 Single and Multiple Station Heat Alarms
541 9 Refrigerated Vending Machines
551 8 Transformer-Type Arc-Welding Machines
589 1 STANDARD FOR SINGLE AND MULTIPLE STATION HEAT ALARMS
603 5 Standard for Power Supplies for Use with Burglar-Alarm Systems
609 12 Standard for Local Burglar Alarm Units and Systems
634 9 Standard for Connectors and Switches for Use with Burglar-Alarm Systems
636 11 Standard for Holdup Alarm Units and Systems
639 8 Standard for Intrusion-Detection Units
674 6 Electric Motors and Generators for Use in Hazardous (Classified) Locations
680 8 Emergency Vault Ventilators and Vault-Ventilating Ports
710C 3 Outline of Investigation for Ultraviolet Radiation Systems for Use in the Ventilation Control of Commercial Cooking Operations
729 6 Oil-Fired Floor Furnaces
730 5 Oil-Fired Wall Furnaces
733 5 Standard for Oil-Fired Air Heaters and Oil-Fired Direct-Fired Heaters
749 12 Household Dishwashers
752 12 Bullet-Resisting Equipment
756 8 Standard for Coin and Currency Changers and Actuators
771 9 Night Depositories
773A 6 Nonindustrial Photoelectric Switches for Lighting Control
775 3 Standard for Graphic Arts Equipment
813 7 Standard for Commercial Audio Equipment
817 12 Cord Sets and Power-Supply Cords
834 5 Standard for Heating, Water Supply, and Power Boilers - Electric
907 4 Standard for Fireplace Accessories
913 8 Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations
921 8 Standard for Commercial Dishwashers
961 5 Standard for Electric Hobby and Sports Equipment
963 4 Standard for Sealing, Wrapping, and Marking Equipment
964 12 Electrically Heated Bedding
987 8 Standard for Stationary and Fixed Electric Tools
1023 7 Household Burglar-Alarm System Units
1037 6 Antitheft Alarms and Devices
1042 5 Electric Baseboard Heating Equipment
1047 6 Standard for Isolated Power Systems Equipment
1082 6 Household Electric Coffee Makers and Brewing-Type Appliances
1083 6 Household Electric Skillets and Frying-Type Appliances
1149 2 Standard for Low Voltage Marine Lighting Fixtures
1261 6 Electric Water Heaters for Pools and Tubs
1323 4 Scaffold Hoists
1447 6 Standard for Electric Lawn Mowers
1453 6 Electric Booster and Commercial Storage Tank Water Heaters
1480A 1 Speakers for Commercial and Professional Use
1567 5 Standard for Receptacles and Switches Intended for Use with Aluminum Wire
1576 2 Flashlights and Lanterns
1598A 1 Supplemental Requirements for Luminaires for Installation on Marine Vessels
1610 4 Central-Station Burglar-Alarm Units
1681 4 Standard for Wiring Device Configurations
1699 3 Arc-Fault Circuit-Interrupters
1795 5 Standard for Hydromassage Bathtubs
1917 5 Solid-State Fan Speed Controls
1951 2 Electric Plumbing Accessories
1994 4 Luminous Egress Path Marking Systems
2006 5 Standard for Halon 1211 Recovery/Recharge Equipment
2021 4 Fixed and Location-Dedicated Electric Room Heaters
2096 3 Standard for Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment
2106 2 Standard for Field Erected Boiler Assemblies
2157 4 Electric Clothes Washing Machines and Extractors
2158 6 Electric Clothes Dryers
2200 3 Stationary Engine Generator Assemblies
2202 3 DC Charging Equipment for Electric Vehicles
2344 2 Material Lifts
2438 2 Outdoor Seasonal-Use Cord-Connected Wiring Devices
2594 3 Electric Vehicle Supply Equipment
2753 2 Outline of Investigation for Battery Operated Ride-On Lawn Mowers
2875 2 Outline of Investigation for Modular Cable System Assemblies and Fittings for Industrial Control, Signal and Power Distribution
745-1 2 Portable Electric Tools
9741 1 Electric Vehicle Power Export Equipment (EVPE)
60079-0 7 Standard for Explosive Atmospheres - Part 0: Equipment - General Requirements
60335-1 6 Standard for Safety of Household and Similar Appliances, Part 1: General Requirements
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
61010a-1 3 Standard for Electrical Equipment for Laboratory Use; Part 1: General Requirements
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