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Low-voltage transformers

Class I, Division 2 Hazardous Location transformers

Type EPZ (single-phase) and EPTZ (three-phase) transformers are UL listed and suitable for installation in Class I, Division 2 Groups A,B, C and D locations, and offer a solution for many petrochemical and other industrial facilities with atmospheres unsuitable for application of either liquid filled or general purpose dry-type transformers.
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Class 1 Division 2 dry-type transformers brochure Transformer distribution catalog
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Voltage class
600V
Ratings
Single-phase 1 - 37.5 kVA Three-phase 15 - 75 kVA
Winding conductor
Aluminum or copper

Core features

  • Encapsulated transformers are specifically excluded from the scope of U.S. DOE energy efficiency requirements
  • Available in aluminum or copper windings
  • Standard 115°C rise; 80°C rise optional. Insulation class 180°C
  • Optional low-sound 3dB and 5dB below NEMA ST-20 standard
  • Available in 60 and 50 Hz
  • Standard NEMA 3R enclosures; optional NEMA Type 4X
  • Cores are grounded with a copper lead

View design guide (layouts, technical data and application information)

Download guide spec (16461)

Learn more about transformer family

Transformers Flex Center custom solutions

Learn how our Transformer Flex Center can help you meet unique general-purpose and distribution transformer needs that cannot be met with standard offerings

U.S. Department of Energy’s 2016 transformer efficiency changes

Discover the impact on inrush current for low-voltage dry-type transformers
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Important aspects of dry-type distribution transformers

Explore best practices for the installation and inspection of dry-type distribution and power transformers
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Specifications

View design guide (layouts, technical data and application information)

Download guide spec (16461)

Learn more about transformer family

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