UL 1561
UL 1561 is the Standard for Safety for Dry-Type General Purpose and Power Transformers, covering larger transformers not covered by UL 506 or UL 5085.
Key Test Areas:
1. Temperature rise under continuous loading
2. Dielectric voltage withstand testing
3. Short-circuit and fault protection
4. Insulation system thermal rating
5. Construction and grounding requirements
Project Details
This standard applies to dry-type general purpose and power transformers rated 600 V or less for indoor or outdoor use.
View more
