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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
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

Transform your dry-type transformers beyond standard

Anytime you are looking for help solving your non-standard or advanced dry-type transformer needs, our experienced team of industry experts will collaborate with you to redefine what's possible.
Discover Dry-Type Transformers Flex Center

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

Discover the impact on inrush current for low-voltage dry-type transformers
Read white paper

Important aspects of dry-type distribution transformers

Explore best practices for the installation and inspection of dry-type distribution and power transformers
Read white paper

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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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