Standard 1778, Edition 5
UL 1778

Uninterruptible Power Systems

UL Standard Edition 5 Published Date: June 13, 2014 Last Revision: April 03, 2024 ANSI Approved: April 28, 2023

$798.00-$1,990.00

Revisions and Related Documents

Revisions
Red Line Std. (7)

Date      
April 03, 2024 Redline Revision
April 28, 2023 Redline Revision
October 12, 2017 Revision
October 10, 2017 Redline
August 07, 2015 Revision
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CSDS
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.

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December 02, 2022
October 13, 2022
August 11, 2017
March 24, 2017
November 25, 2016
September 30, 2016
February 21, 2014
August 23, 2013
March 12, 2008
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UL LLC CRD (0)

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Other Updates (0)

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Referenced Standards (39)

Below is a list of UL Standards referenced in UL 1778

StandardEditionTitle
50 14 Enclosures for Electrical Equipment, Non-Environmental Considerations
50E 3 Enclosures for Electrical Equipment, Environmental Considerations
62 20 Flexible Cords and Cables
353 5 Standard for Limit Controls
486E 6 Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
496 14 Lampholders
498 16 Attachment Plugs and Receptacles
508 19 Standard for Industrial Control Equipment
514B 6 Conduit, Tubing, and Cable Fittings
723 11 Test for Surface Burning Characteristics of Building Materials
810 6 Capacitors
817 13 Cord Sets and Power-Supply Cords
891 12 Switchboards
900 8 Air Filter Units
924 10 Emergency Lighting and Power Equipment
991 3 Tests for Safety-Related Controls Employing Solid-State Devices
1283 7 Electromagnetic Interference Filters
1437 4 Standard for Electrical Analog Instruments - Panel Board Types
1446 8 Systems of Insulating Materials - General
1973 3 ANSI/CAN/UL Batteries for Use in Stationary and Motive Auxiliary Power Applications
1989 6 Valve Regulated or Vented Batteries with Aqueous Electrolytes
2200 3 ANSI/CAN/UL/ULC Stationary Engine Generator Assemblies
248-1 4 Low-Voltage Fuses - Part 1: General Requirements
4248-1 3 Fuseholders - Part 1: General Requirements
4248-4 2 Fuseholders - Part 4: Class CC
4248-5 2 Fuseholders - Part 5: Class G
4248-6 2 Fuseholders - Part 6: Class H
4248-8 3 Fuseholders - Part 8: Class J
4248-9 1 Standard for Fuseholders - Part 9: Class K
4248-11 1 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
4248-12 2 Standard for Fuseholders - Part 12: Class R
4248-15 1 Standard for Fuseholders - Part 15: Class T
486A-486B 4 Wire Connectors
60601-1 1 Medical Electrical Equipment, Part 1: General Requirements for Safety
60947-1 6 Low-Voltage Switchgear and Controlgear - Part 1: General Rules
60950-1 2 Information Technology Equipment - Safety - 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 (12)

UL 1778 is referenced in the following list of UL Standards

StandardEditionTitle
924 10 Emergency Lighting and Power Equipment
1008 9 Transfer Switch Equipment
1012 8 Power Units Other Than Class 2
1076 6 Proprietary Burglar Alarm Units and Systems
1801 4 Outline of Investigation for Power Distribution Centers for Communications Equipment
1981 3 Central-Station Automation Systems
2200 3 Stationary Engine Generator Assemblies
2416 1 Audio/Video, Information and Communication Technology Equipment Cabinet, Enclosure and Rack Systems
3008 3 Outline of Investigation for Automatic Interconnection Switches for Emergency Systems
9540 3 Energy Storage Systems and Equipment
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
62368-1 3 Audio/Video, Information and Communication Technology Equipment - Part 1: Safety Requirements
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