Standard 268A, Edition 4
UL 268A

Smoke Detectors for Duct Application

UL Standard Edition 4 Published Date: December 11, 2008 Last Revision: August 25, 2023 ANSI Approved: August 22, 2023

$505.00-$1,258.00

Revisions and Related Documents

Revisions
Red Line Std. (8)

Date      
August 25, 2023 Redline Revision
August 18, 2020 Redline Revision
August 12, 2016 Redline Revision
October 02, 2014 Revision
September 25, 2009 Revision
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CSDS
Proposals (9)

CSDS Proposal   

CSDS Proposals

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  • A new Standard or Outline that has not previously been published.

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July 07, 2023
February 03, 2023
May 23, 2022
May 29, 2020
April 24, 2020
July 01, 2016
January 21, 2016
August 01, 2014
May 08, 2009
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UL LLC CRD (0)

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Other Updates (2)

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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)
April 23, 2014 View
April 23, 2009 View
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Referenced Standards (31)

Below is a list of UL Standards referenced in UL 268A

StandardEditionTitle
20 14 General-Use Snap Switches
44 19 Thermoset-Insulated Wires and Cables
62 20 Flexible Cords and Cables
73 10 Standard for Motor-Operated Appliances
83 16 Standard for Thermoplastic-Insulated Wires and Cables
94 7 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
217 10 Proposed Edition - UL 217 Ed. 10
224 7 Extruded Insulating Tubing
228 5 Door Closers-Holders, With or Without Integral Smoke Detectors
268 8 Smoke Detectors for Fire Alarm Systems
310 10 Electrical Quick-Connect Terminals
486E 6 Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors
510 10 Polyvinyl Chloride, Polyethylene, and Rubber Insulating Tape
796 12 Printed Wiring Boards
864 11 Control Units and Accessories for Fire Alarm Systems
1059 5 Terminal Blocks
1439 5 Tests for Sharpness of Edges on Equipment
1730 4 Smoke Detector Monitors and Accessories for Individual Living Units of Multifamily Residences and Hotel/Motel Rooms
2111 1 Standard for Overheating Protection for Motors
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 Fuseholders - Part 9: Class K
5085-1 1 Low Voltage Transformers - Part 1: General Requirements
5085-2 2 Low Voltage Transformers - Part 2: General Purpose Transformers
4248-11 1 Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse
4248-12 2 Fuseholders - Part 12: Class R
4248-15 1 Fuseholders - Part 15: Class T
486A-486B 3 Wire Connectors
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Reverse Referenced Standards (2)

UL 268A is referenced in the following list of UL Standards

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