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  • Fact Sheet

UL 508A Future Effective Dates

In the past, future effective dates were embedded in the Standard. Now, future effective dates for UL 508A are referenced here.

Electronic and electrical components of the industrial device

This page is intended to be used to determine future effective dates for changes to requirements in UL 508A, the Standard for Industrial Control Panels. Typically, changes to requirements in UL 508A become effective upon publication. However, in some cases, changes to requirements have a future effective date to give the control panel industry sufficient time to adjust their business operations to comply with those changes.

In the past, future effective dates were embedded in the Standard. Now, future effective dates for UL 508A are referenced below.

Changes to requirements having a future effective date and their impact on users of the Standard are described in a summary of requirements (SOR) document, also referenced below.

This page will be updated on an as-needed basis as future revisions to the Standard are published. We will communicate future changes and updates through the Energy and Industrial Outlook newsletter. Subscribe to the newsletter to receive notifications and stay up to date on effective dates. 

 

Description of changes to requirements

Future effective date for
changes to requirements

Date of summary of
requirement (SOR) changes

Link to SOR

Revisions to UL 508A from the second to the third edition

July 1, 2020

August 17, 2018

SOR 

Revisions to UL 508A, April 16, 2020

Not determined

Not issued

N/A

Canadian certification requirements to be migrated from CSA C22.2 No. 14 to C22.2 No. 286-17

January 6, 2022

Not issued

N/A

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