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Standard 840, Edition 3

Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment

UL Standard
Standard 840, Edition 3 Edition Date: January 06, 2005 ANSI Approved: April 19, 2022 $402.00-$998.00

Revisions and Related Documents

Revisions
Red Line Std. (5)

Date      
April 19, 2022 Redline Revision
October 05, 2016 Revision
May 04, 2012 Revision
March 02, 2007 Revision
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CSDS
Proposals (8)

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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February 04, 2022
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 (4)

Below is a list of UL Standards referenced in UL 840

Reverse Referenced Standards (98)

UL 840 is referenced in the following list of UL Standards

StandardEditionTitle
69 10 Standard for Electric-Fence Controllers
130 13 Standard for Electric Heating Pads
218 3 Fire Pump Controllers
234 5 Standard for Low Voltage Lighting Fixtures for Use in Recreational Vehicles
334 2 Outline of Investigation for Theater Lighting Distribution and Control Equipment
347A 2 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 Power Units for Fountain, Swimming Pool, and Spa Luminaires
458 6 Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts
471 10 Standard for Commercial Refrigerators and Freezers
486E 5 Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
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
697 7 Toy Transformers
756 8 Standard for Coin and Currency Changers and Actuators
773 5 Plug-In Locking Type Photocontrols for Use with Area Lighting
778 6 Motor-Operated Water Pumps
796 12 Printed Wiring Boards
810 6 Standard for Capacitors
810B 2 DC Power Capacitors
879 9 Electric Sign Components
913 8 Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations
916 5 Energy Management Equipment
935 10 Standard for Fluorescent-Lamp Ballasts
963 4 Standard for Sealing, Wrapping, and Marking Equipment
964 12 Electrically Heated Bedding
987 8 Standard for Stationary and Fixed Electric Tools
998 6 Humidifiers
1008 9 Transfer Switch Equipment
1008M 3 Outline of Investigation for Transfer Switch Equipment, Meter Mounted
1012 8 Power Units Other Than Class 2
1029 5 High-Intensity-Discharge Lamp Ballasts
1053 7 Ground-Fault Sensing and Relaying Equipment
1059 5 Terminal Blocks
1077 7 Supplementary Protectors for Use in Electrical Equipment
1081 7 Swimming Pool Pumps, Filters, and Chlorinators
1086 6 Household Trash Compactors
1206 4 Electric Commercial Clothes-Washing Equipment
1236 8 Battery Chargers for Charging Engine-Starter Batteries
1238 7 Control Equipment for Use with Flammable Liquid and LP-Gas Dispensing Devices
1240 4 Electric Commercial Clothes-Drying Equipment
1261 6 Electric Water Heaters for Pools and Tubs
1279 2 Outline of Investigation for Solar Collectors
1283 7 Electromagnetic Interference Filters
1310 7 Class 2 Power Units
1434 1 Thermistor-Type Devices
1450 4 Motor-Operated Air Compressors, Vacuum Pumps, and Painting Equipment
1557 7 Electrically Isolated Semiconductor Devices
1563 6 Electric Spas, Equipment Assemblies, and Associated Equipment
1564 4 Industrial Battery Chargers
1576 2 Flashlights and Lanterns
1681 4 Standard for Wiring Device Configurations
1682 5 Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type
1699 3 Arc-Fault Circuit-Interrupters
1699B 1 Photovoltaic (PV) DC Arc-Fault Circuit Protection
1795 5 Standard for Hydromassage Bathtubs
1838 3 Low Voltage Landscape Lighting Systems
1973 3 ANSI/CAN/UL Batteries for Use in Stationary and Motive Auxiliary Power Applications
2011 7 Outline of Investigation for Machinery
2111 1 Standard for Overheating Protection for Motors
2157 4 Electric Clothes Washing Machines and Extractors
2158 6 Electric Clothes Dryers
2161 2 Standard for Neon Transformers and Power Supplies
2200 3 Stationary Engine Generator Assemblies
2200 3 Stationary Engine Generator Assemblies
2237 1 Multi-Point Interconnection Power Cable Assemblies for Industrial Machinery
2267 3 Standard for Fuel Cell Power Systems for Installation in Industrial Electric Trucks
2565 1 Standard for Industrial Metalworking and Woodworking Machine Tools
2577 1 Suspended Ceiling Power Grid Systems and Equipment
2580 3 Batteries for Use In Electric Vehicles
2580 3 Batteries for Use In Electric Vehicles
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
2748 1 Arcing Fault Quenching Equipment
2748A 1 Arcing Fault Interrupting Devices
2753 2 Outline of Investigation for Battery Operated Ride-On Lawn Mowers
2849 1 Electrical Systems for eBikes
2850 1 Outline of Investigation for Electric Scooters and Motorcycles
2877 4 Outline for Investigation for Power Supplies, Medium Voltage
3703 1 Standard for Solar Trackers
3741 1 ANSI/CAN/UL Photovoltaic Hazard Control
5840 1 Electrical Systems of Battery Powered Aviation Ground Support Equipment
745-1 2 Portable Electric Tools
8752 1 Organic Light Emitting Diode (OLED) Panels
8753 1 Field-Replaceable Light Emitting Diode (LED) Light Engines
2231-2 2 Personnel Protection Systems for Electric Vehicle (EV) Supply Circuits: Particular Requirements for Protection Devices for Use in Charging Systems
4248-1 3 Fuseholders - Part 1: General Requirements
62091 1 Low-Voltage Switchgear and Controlgear - Controllers for Drivers of Stationary Fire Pumps
60079-0 7 Standard for Explosive Atmospheres - Part 0: Equipment - General Requirements
60079-7 5 Explosive atmospheres - Part 7: Equipment protection by increased safety ''e''
60939-3 1 Passive Filter Units for Electromagnetic Interference Suppression - Part 3: Passive Filter Units for Which Safety Tests are Appropriate
60947-1 6 Low-Voltage Switchgear and Controlgear - Part 1: General Rules
61010a-1 3 Standard for Electrical Equipment for Laboratory Use; Part 1: General Requirements
61131-2 2 Programmable Controllers - Part 2: Equipment Requirements and Tests
61496-1 3 Safety of Machinery - Electro-Sensitive Protective Equipment - Part 1: General Requirements and Tests
61810-1 1 Electromechanical Elementary Relays - Part 1: General Requirements
60947-4-2 2 Low-Voltage Switchgear and Controlgear - Part 4-2: Contactors and Motor-Starters - AC Semiconductor Motor Controllers and Starters
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