Jefferson Electric Transformers



  • Single Phase: 1 kVA through 25 kVA*
  • Three Phase: 3 kVA through 75 KVA*


  • Class I Division 2 units are key in hazardous locations in maintaining a safe environment, such as
    • Petroleum and gas refineries, storage and dispensing areas
    • Chemical factories
    • Spray finishing areas
    • Aircraft hangers


  • Class I Division 2
  • Groups A, B, C & D
  • T3C – Temp Classification
  • Aluminum Windings
  • Indoor and Outdoor use
  • Encapsulated with electrical grade resin
  • Cores of high quality electrical steel
  • NEMA 3R-rated enclosures
  • Temperature Rise – 115ºC @ 40ºC ambient standard
  • Heat-cured ASA-61 gray powder coat finish
  • Wall-mount up to 25 kVA standard
  • Electrostatically shields optional
  • 60 Hz Standard, 50 Hz optional

Features, Functions, Benefits

  • Large connection compartment with knockouts for ease of wiring and installation
  • Quiet operation for installation flexibility
  • Slotted mounting holes for quick and easy mounting
  • Convenient wall mount design with lifting hooks up to 15 kVA
  • Permanently affixed wiring diagram
  • Seismic certification for all units


*Options and Accessories

  • CE Marked units available as custom product
  • Other sizes and voltages available as a custom product

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