Browse & Buy UL Standards
Standard 497A, Edition 3

Standard for Secondary Protectors for Communications Circuits

UL CSDS Proposal
Standard 497A, Edition 3 Edition Date: June 27, 2008
Summary of Topics b0497a_3_20080627_sum.html

Subject 497A

Bulletin Dated: June 27, 2008

SUMMARY OF TOPICS

The following changes in requirements are being proposed:

1. Approval of the Third Edition of the Standard for Secondary Protectors for Communications Circuits, UL 497A, as an American National Standard with No Change in Requirements

Back to Standard 497A, Edition 3

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

×