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Standard 840, Edition 3

Standard for Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment

UL Standard
Standard 840, Edition 3 Edition Date: January 06, 2005 ANSI Approved: October 05, 2016 $402.00-$998.00

Revisions and Related Documents

Revisions
Red Line Std. (3)

Date      
October 05, 2016 Revision
May 04, 2012 Revision
March 02, 2007 Revision
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CSDS
Proposals (7)

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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August 19, 2016
October 21, 2011
August 12, 2011
April 28, 2011
November 17, 2006
August 18, 2006
June 23, 2006
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UL LLC CRD (0)

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Other Updates (1)

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Bulletin   

Bulletins

These bulletins are not used in CSDS. These are announcement and report type bulletins.

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Summary of Topics (SOT)
September 24, 2004 View
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Referenced Standards (5)

Reverse Referenced Standards (110)

UL 840 is referenced in the following list of UL Standards

StandardEditionTitle
48 15 Standard for Electric Signs
69 10 Standard for Electric-Fence Controllers
73 10 Standard for Motor-Operated Appliances
111 6 Outline of Investigation for Multioutlet Assemblies
130 13 Standard for Electric Heating Pads
153 13 Portable Electric Luminaires
218 3 Fire Pump Controllers
234 5 Standard for Low Voltage Lighting Fixtures for Use in Recreational Vehicles
244A 3 Standard for Solid-State Controls for Appliances
283 3 Standard for Air Fresheners and Deodorizers
347A 1 Standard for Medium Voltage Power Conversion Equipment
353 5 Standard for Limit Controls
372 6 Automatic Electrical Controls for Household and Similar Use - Part 2: Particular Requirements for Burner Ignition Systems and Components
379 1 Standard for Power Units for Fountain, Swimming Pool, and Spa Luminaires
428A 1 Standard for Electrically Operated Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations Up to 85 Percent (E0 - E85)
429 7 Standard for Electrically Operated Valves
458 6 Standard for Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts
471 10 Standard for Commercial Refrigerators and Freezers
484 9 Standard for Room Air Conditioners
486E 5 Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
489 13 Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures
507 10 Standard for Electric Fans
508 18 Standard for Industrial Control Equipment
697 7 Standard for Toy Transformers
710B 2 Standard for Recirculating Systems
749 11 Household Dishwashers
756 8 Standard for Coin and Currency Changers and Actuators
763 5 Standard for Motor-Operated Commercial Food Preparing Machines
773 5 Plug-In Locking Type Photocontrols for Use with Area Lighting
773A 6 Standard for Nonindustrial Photoelectric Switches for Lighting Control
778 6 Motor-Operated Water Pumps
810 6 Standard for Capacitors
840 3 Standard for Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment
858 16 Standard for Household Electric Ranges
873 12 Standard for Temperature-Indicating and -Regulating Equipment
879 9 Standard for Electric Sign Components
913 8 Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations
916 5 Standard for Energy Management Equipment
924 10 Standard for Emergency Lighting and Power Equipment
935 10 Standard for Fluorescent-Lamp Ballasts
943 5 Ground-Fault Circuit-Interrupters
943B 3 Standard for Appliance Leakage-Current Interrupters
962 4 Standard for Household and Commercial Furnishings
963 4 Standard for Sealing, Wrapping, and Marking Equipment
964 12 Electrically Heated Bedding
979 2 Standard for Water Treatment Appliances
982 8 Motor-Operated Household Food Preparing Machines
987 8 Standard for Stationary and Fixed Electric Tools
1008A 2 Standard for Transfer Switch Equipment, Over 1000 Volts
1012 8 Standard for Power Units Other Than Class 2
1018 6 Electric Aquarium Equipment
1053 7 Ground-Fault Sensing and Relaying Equipment
1077 7 Standard for Supplementary Protectors for Use in Electrical Equipment
1081 7 Swimming Pool Pumps, Filters, and Chlorinators
1083 6 Household Electric Skillets and Frying-Type Appliances
1236 8 Standard for Battery Chargers for Charging Engine-Starter Batteries
1238 6 Standard for Control Equipment for Use with Flammable Liquid Dispensing Devices
1279 2 Outline of Investigation for Solar Collectors
1283 7 Electromagnetic Interference Filters
1310 7 Standard for Class 2 Power Units
1434 1 Standard for Thermistor-Type Devices
1449 4 Standard for Surge Protective Devices
1472 2 Solid-State Dimming Controls
1563 6 Electric Spas, Equipment Assemblies, and Associated Equipment
1564 4 Industrial Battery Chargers
1594 4 Standard for Sewing and Cutting Machines
1681 4 Standard for Wiring Device Configurations
1682 5 Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type
1699 3 Standard for Arc-Fault Circuit-Interrupters
1699B 1 Standard for Photovoltaic (PV) DC Arc-Fault Circuit Protection
1741 2 Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
1795 5 Standard for Hydromassage Bathtubs
1838 3 Standard for Low Voltage Landscape Lighting Systems
1963 4 Standard for Refrigerant Recovery/Recycling Equipment
1973 2 ANSI/CAN/UL Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications
1993 6 Self-Ballasted Lamps and Lamp Adapters
2011 5 Outline of Investigation for Machinery
2111 1 Standard for Overheating Protection for Motors
2157 4 Electric Clothes Washing Machines and Extractors
2158 5 Electric Clothes Dryers
2161 2 Standard for Neon Transformers and Power Supplies
2202 2 Standard for Electric Vehicle (EV) Charging System Equipment
2237 1 Standard for Multi-Point Interconnection Power Cable Assemblies for Industrial Machinery
2251 4 Standard for Plugs, Receptacles, and Couplers for Electric Vehicles
2267 3 Standard for Fuel Cell Power Systems for Installation in Industrial Electric Trucks
2416 1 Audio/Video, Information and Communication Technology Equipment Cabinet, Enclosure and Rack Systems
2442 2 Standard for Wall- and Ceiling-Mounts and Accessories
2565 1 Standard for Industrial Metalworking and Woodworking Machine Tools
2577 1 Suspended Ceiling Power Grid Systems and Equipment
2594 2 Standard for Electric Vehicle Supply Equipment
2695 2 Outline of Investigation for DC Rated Attachment Plugs and Outlet Devices Intended for Use with Information Technology and Telecommunication Equipment Installed in Restricted Access Locations
2735 1 Standard for Electric Utility Meters
2753 2 Outline of Investigation for Battery Operated Ride-On Lawn Mowers
3703 1 Standard for Solar Trackers
745-1 2 Portable Electric Tools
8750 2 Light Emitting Diode (LED) Equipment for Use in Lighting Products
8752 1 Organic Light Emitting Diode (OLED) Panels
8753 1 Field-Replaceable Light Emitting Diode (LED) Light Engines
1004-1 2 Standard for Rotating Electrical Machines - General Requirements
2231-2 2 Standard for Safety for Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: Particular Requirements for Protection Devices for Use in Charging Systems
60079-0 7 Standard for Explosive Atmospheres - Part 0: Equipment - General Requirements
60079-7 5 Standard for Explosive Atmospheres - Part 7: Equipment Protection by Increased Safety ''e''
60947-1 5 Low-Voltage Switchgear and Controlgear - Part 1: General rules
61010a-1 3 Standard for Electrical Equipment for Laboratory Use; Part 1: General Requirements
61496-1 3 Standard for Electro-Sensitive Protective Equipment, Part 1: General Requirements and Tests
61810-1 1 Electromechanical Elementary Relays - Part 1: General Requirements
60079-11 6 Explosive Atmospheres - Part 11: Equipment Protection by Intrinsic Safety 'i'
60947-4-1 3 Low-Voltage Switchgear and Controlgear - Part 4-1: Contactors and Motor-Starters - Electromechanical Contactors and Motor-Starters
61800-5-1 1 Standard for Adjustable Speed Electrical Power Drive Systems - Part 5-1: Safety Requirements - Electrical, Thermal and Energy
60730-2-18 1 Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Automatic Electrical Water and Air Flow Sensing Controls Including Mechanical Requirements
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