Browse & Buy UL Standards
Standard 1561, Edition 4

Standard for Dry-Type General Purpose and Power Transformers

UL CSDS Proposal
Standard 1561, Edition 4 Edition Date: July 04, 2014
Summary of Topics b1561_4_20140704_sum.html

Subject 1561

Bulletin Dated: July 4, 2014


The following changes in requirements to the Standard for Dry-Type General Purpose and Power Transformers, UL 1561, are being proposed:

1. Addition of Requirements for Class 240 Insulation Systems

Back to Standard 1561, Edition 4

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.