Standards & Publications

Browse & Buy UL Standards
Standard 917, Edition 5

Standard for Clock-Operated Switches

UL CSDS Proposal
Standard 917, Edition 5 Edition Date: April 15, 2016
Summary of Topics b0917_5_20160416_sum.html

Subject 917

Bulletin Dated: April 15, 2016


The following topics for the Standard for Clock-Operated Switches, UL 917, are being recirculated:

1. Addition of Requirements for the Test Method and Simulated Electrical Loads for Electronic Ballast, CFL and LED Driver Ratings From NEMA 410-2011.

Back to Standard 917, Edition 5

The cost to purchase this Standard varies depending on whether you are ordering a hardcopy, PDF or combination of the two. We also offer two different types of subscriptions: a one year and a three year.

You will be able to choose your purchase options on the following pages.


You have one or more subscriptions that will expire soon.


You have one or more licenses to assign


Additional information required

To serve you better, please update your account details.

Featured Standards

Recently Published

Coming Soon

UL 48
Electrical Signs
Revision Pages

UL 101
Leakage Current for Utilization Equipment
Revision Pages

UL 260
Dry Pipe and Deluge Valves for Fire-Protection Service
Revision Pages

UL 310
Electrical Quick-Connect Terminals
Revision Pages

UL 343
Pumps for Oil-Burning Appliances
Revision Pages

UL 498
Attachment Plugs and Receptacles
Revision Pages

ULC 704.1
Thermal Insulation, Polyurethane and Polyisocyanurate, Boards, Faced
Revision Pages

UL 726
Oil-Fired Boiler Assemblies
Revision Pages

UL 746A
Polymeric Materials - Short Term Property Evaluations
Revision Pages