Transformer Manufacturers, Inc.
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Coil Construction

TMI utilizes construction criteria to meet various domestic and international standards such as:

  • U/L  506
  • U/L  508
  • U/L  544/60601
  • U/L  1411
  • U/L  1446
  • U/L  1561
  • U/L  1585
  • EN 61588-1
  • EN 60950

U/L  Insulation Systems:

TMI utilizes recognized insulation systems for both layer wound transformers and bobbin wound transformers under U/L OBJY2 for the following temperature classes:

  • Class B (130 C)
  • Class F (155 C)
  • Class H (180 C)
  • Class R (220 C)
Transformer Manufacturers, Inc.