Standard 60950-1, Edition 2
UL 60950-1

Information Technology Equipment - Safety - Part 1: General Requirements

UL Standard Edition 2 Published Date: March 27, 2007 Last Revision: May 09, 2019 ANSI Approved: May 09, 2019 DOD Approved: December 21, 1994

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February 22, 2019
June 13, 2014
December 12, 2013
August 26, 2011
April 29, 2011
January 29, 2010
April 18, 2008
October 18, 2007
February 02, 2007
October 27, 2006
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Referenced Standards (87)

Below is a list of UL Standards referenced in UL 60950-1

StandardEditionTitle
20 14 General-Use Snap Switches
44 19 Thermoset-Insulated Wires and Cables
50 14 Enclosures for Electrical Equipment, Non-Environmental Considerations
50E 3 Enclosures for Electrical Equipment, Environmental Considerations
62 20 Flexible Cords and Cables
83 16 Standard for Thermoplastic-Insulated Wires and Cables
94 7 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
244A 3 Standard for Solid-State Controls for Appliances
340 6 Tests for Comparative Flammability of Liquids
353 5 Standard for Limit Controls
486C 8 Splicing Wire Connectors
486E 6 Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
489 13 Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures
496 14 Lampholders
497 7 Protectors for Paired-Conductor Communications Circuits
497A 3 Secondary Protectors for Communications Circuits
497B 4 Protectors for Data Communications and Fire-Alarm Circuits
498 16 Attachment Plugs and Receptacles
507 10 Electric Fans
514A 12 Standard for Metallic Outlet Boxes
514B 6 Conduit, Tubing, and Cable Fittings
514C 4 Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers
723 11 Test for Surface Burning Characteristics of Building Materials
746A 6 Polymeric Materials - Short Term Property Evaluations
746B 5 Polymeric Materials - Long Term Property Evaluations
746C 7 Polymeric Materials - Use in Electrical Equipment Evaluations
746D 8 Polymeric Materials - Fabricated Parts
758 3 Appliance Wiring Material
796 12 Printed Wiring Boards
810A 1 Electrochemical Capacitors
817 12 Cord Sets and Power-Supply Cords
873 12 Standard for Temperature-Indicating and -Regulating Equipment
891 12 Standard for Switchboards
900 8 Air Filter Units
943 5 Ground-Fault Circuit-Interrupters
969 5 Marking and Labeling Systems
1059 5 Terminal Blocks
1077 7 Supplementary Protectors for Use in Electrical Equipment
1236 8 Battery Chargers for Charging Engine-Starter Batteries
1283 7 Electromagnetic Interference Filters
1310 7 Class 2 Power Units
1412 5 Fusing Resistors and Temperature-Limited Resistors for Radio- and Television-Type Appliances
1413 6 High-Voltage Components for Television-Type Appliances
1417 6 Special Fuses for Radio- and Television- Type Appliances
1434 1 Thermistor-Type Devices
1446 8 Systems of Insulating Materials - General
1449 5 Surge Protective Devices
1577 5 Optical Isolators
1682 5 Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type
1694 3 Tests for Flammability of Small Polymeric Component Materials
1778 5 Uninterruptible Power Systems
1863 4 Standard for Communications-Circuit Accessories
1977 4 Component Connectors for Use in Data, Signal, Control and Power Applications
2043 5 Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces
2054 3 Household and Commercial Batteries
2089 3 Vehicle Battery Adapters
2111 1 Standard for Overheating Protection for Motors
2367 2 Solid State Overcurrent Protectors
248-1 4 Low-Voltage Fuses - Part 1: General Requirements
248-4 2 Low-Voltage Fuses - Part 4: Class CC Fuses
248-5 2 Low-Voltage Fuses - Part 5: Class G Fuses
248-8 3 Low-Voltage Fuses - Part 8: Class J Fuses
1004-1 2 Rotating Electrical Machines - General Requirements
1004-2 2 Impedance Protected Motors
1004-3 2 Thermally Protected Motors
248-10 3 Low-Voltage Fuses - Part 10: Class L Fuses
248-12 3 Low-Voltage Fuses - Part 12: Class R Fuses
248-14 2 Standard for Low-Voltage Fuses - Part 14: Supplemental Fuses
248-15 3 Low-Voltage Fuses - Part 15: Class T Fuses
4248-1 3 Fuseholders - Part 1: General Requirements
4248-4 2 Fuseholders - Part 4: Class CC
4248-5 2 Fuseholders - Part 5: Class G
4248-8 3 Fuseholders - Part 8: Class J
5085-1 1 Low Voltage Transformers - Part 1: General Requirements
5085-3 1 Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers
60691 4 Standard for Thermal-Links - Requirements and Application Guide
61965 2 Mechanical Safety for Cathode Ray Tubes
4248-12 2 Standard for Fuseholders - Part 12: Class R
4248-15 1 Standard for Fuseholders - Part 15: Class T
486A-486B 3 Wire Connectors
60730-1 6 Automatic Electrical Controls - Part 1: General Requirements
60947-1 6 Low-Voltage Switchgear and Controlgear - Part 1: General Rules
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
61058-1 5 Switches for Appliances - Part 1: General Requirements
61131-2 2 Programmable Controllers - Part 2: Equipment Requirements and Tests
60384-14 2 Fixed Capacitors for Use in Electronic Equipment - Part 14: Sectional Specification: Fixed Capacitors for Electromagnetic Interference Suppression and Connection to the Supply Mains
60947-5-2 4 Low-Voltage Switchgear and Controlgear - Part 5-2: Control Circuit Devices and Switching Elements - Proximity Switches
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Reverse Referenced Standards (104)

UL 60950-1 is referenced in the following list of UL Standards

StandardEditionTitle
48 15 Electric Signs
73 10 Standard for Motor-Operated Appliances
111 8 Outline of Investigation for Multioutlet Assemblies
122 5 Standard for Photographic Equipment
180 9 Combustible Liquid Tank Accessories
180 9 Combustible Liquid Tank Accessories
183 4 Manufactured Wiring Systems
201 3 Garage Equipment
291 6 Automated Teller Systems
331C 2 Outline of Investigation for Fuel Filtration Units
334 2 Outline of Investigation for Theater Lighting Distribution and Control Equipment
347A 2 Standard for Medium Voltage Power Conversion Equipment
353 5 Standard for Limit Controls
379 1 Power Units for Fountain, Swimming Pool, and Spa Luminaires
471 10 Commercial Refrigerators and Freezers
484 9 Room Air Conditioners
497A 3 Secondary Protectors for Communications Circuits
498 16 Attachment Plugs and Receptacles
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
507 10 Electric Fans
508 19 Standard for Industrial Control Equipment
510A 2 Component Tapes
559 3 Standard for Equipment for Fire Signal Receiving Centres and Systems
563 8 Ice Makers
588 19 Seasonal and Holiday Decorative Products
621 7 Ice Cream Makers
705 7 Power Ventilators
710B 2 Recirculating Systems
775 3 Standard for Graphic Arts Equipment
864 11 Control Units and Accessories for Fire Alarm Systems
867 5 Electrostatic Air Cleaners
879 9 Electric Sign Components
879A 1 LED Sign and Sign Retrofit Kits
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
970 1 Retail Fixtures and Merchandise Displays
982 8 Motor-Operated Household Food Preparing Machines
998 6 Humidifiers
1018 6 Electric Aquarium Equipment
1023 7 Household Burglar-Alarm System Units
1037 6 Antitheft Alarms and Devices
1069 8 Hospital Signaling and Nurse Call Equipment
1076 6 Proprietary Burglar Alarm Units and Systems
1238 7 Control Equipment for Use with Flammable Liquid and LP-Gas Dispensing Devices
1419 4 Professional Video and Audio Equipment
1431 3 Personal Hygiene and Health Care Appliances
1492 2 Audio-Video Products and Accessories
1573 4 Stage and Studio Luminaires and Connector Strips
1594 4 Sewing and Cutting Machines
1610 4 Central-Station Burglar-Alarm Units
1637 5 Home Health Care Signaling Equipment
1647 6 Motor-Operated Massage and Exercise Machines
1678 6 Household, Commercial, and Institutional-Use Carts, Stands and Entertainment Centers for Use with Audio and/or Video Equipment
1778 5 Uninterruptible Power Systems
1786 4 Direct Plug-In Nightlights
1863 4 Standard for Communications-Circuit Accessories
1977 4 Component Connectors for Use in Data, Signal, Control and Power Applications
1981 3 Central-Station Automation Systems
1993 6 Self-Ballasted Lamps and Lamp Adapters
1996 4 Electric Duct Heaters
2044 4 Commercial Closed-Circuit Television Equipment
2108 2 Low Voltage Lighting Systems
2264A 2 Outline of Investigation for Water Electrolysis Type Hydrogen Generators
2267 3 Standard for Fuel Cell Power Systems for Installation in Industrial Electric Trucks
2361 2 Outline of Investigation for Custom-Built Kiosks
2367 2 Solid State Overcurrent Protectors
2388 2 Flexible Lighting Products
2404 1 Outline of Investigation for Active and Passive Optical Cable Assemblies and Connectors
2416 1 Audio/Video, Information and Communication Technology Equipment Cabinet, Enclosure and Rack Systems
2442 2 Wall- and Ceiling-Mounts and Accessories
2524 3 Emergency Responder Communication Enhancement Systems
2560 1 Emergency Call Systems for Assisted Living and Independent Living Facilities
2572 2 Mass Notification Systems
2577 2 Suspended Ceiling Power Grid Systems and Equipment
2580 3 Batteries for Use In Electric Vehicles
2580 3 Batteries for Use In Electric Vehicles
2610 2 Commercial Premises Security Alarm Units and Systems
2684 1 Video and Thermal Image Detectors for Fire Alarm Systems
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
2734 4 Connectors and Service Plugs for Use with On-Board Electrical Vehicle (EV) Charging Systems
2738 2 Induction Power Transmitters and Receivers for use with Low Energy Products
2745 2 Outline of Investigation for Meter Socket Adapters for Communication
2849 1 Electrical Systems for eBikes
2877 4 Outline for Investigation for Power Supplies, Medium Voltage
2999 1 Individual Commercial Office Furnishings
3030 1 Unmanned Aircraft Systems
3120 1 Outline of Investigation for Battery Operated Exoskeletons for Industrial Applications
8139 2 Electrical Systems of Electronic Cigarettes and Vaping Devices
8750 2 Light Emitting Diode (LED) Equipment for Use in Lighting Products
8752 2 Organic Light Emitting Diode (OLED) Panels
8753 2 Field-Replaceable Light Emitting Diode (LED) Light Engines
8801 1 Photovoltaic (PV) Luminaire Systems
9691 1 Recommended Practice for Nameplates for Use in Electrical Installations
60065 8 Standard for Audio, Video and Similar Electronic Apparatus - Safety Requirements
121201 9 Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations
121203 2 Recommended Practice for Portable/Personal Electronic Products Suitable for Use in Class I, Division 2, Class I, Zone 2, Class II, Division 2, Class III, Division 1, Class III, Division 2, Zone 21 and Zone 22 Hazardous (Classified) Locations
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
61010-1 3 Standard for Safety Requirements for Electrical Equipment For Measurement, Control, and Laboratory Use; Part 1: General Requirements
62109-1 1 Safety of Power Converters for Use in Photovoltaic Power Systems - Part 1: General Requirements
62368-1 3 Audio/Video, Information and Communication Technology Equipment - Part 1: Safety Requirements
62841-1 1 Electric Motor-Operated Hand-Held Tools, Transportable Tools And Lawn And Garden Machinery - Safety - Part 1: General Requirements
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