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Standard 5085-3, Edition 1

Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers

UL CSDS Proposal
Standard 5085-3, Edition 1 Edition Date: June 03, 2011
Summary of Topics b5085-3_1_20110603_sum.html

Subject 5085-3

Bulletin Dated: June 3, 2011

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers, UL 5085-3, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Clarification of the Calibration Test of Overcurrent Protective Devices

2. For Preliminary Review Only: Clarification of Upper Rating Limit for Overcurrent Limiting Device in Class 2 Transformers

3. For Preliminary Review Only: Correction of Requirements for the Dielectric Voltage-Withstand After Overload Heating Test

4. For Preliminary Review Only: Reinstatement of Requirements for the Separation of Circuits

5. For Preliminary Review Only: Correction of Maximum Temperature Rise for Class 120 (E) Insulation Systems

6. For Preliminary Review Only: Clarification of the Scope Regarding Cord-Connected Transformers

7. For Preliminary Review Only: Addition of Leakage Current Test for Cord-Connected Class 3 Transformers

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