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RUPALIT® Safety Litzwires will revolutionize the design of your transformer in accordance with IEC60950, Annex C and Annex U;VDE0805; UL60950 (applied for).


Technical and Economical Benefits

  • 50% reduction in the size of transformers
  • 65% reduction in the weight of transformers
  • Insulation between primary and secondary winding no longer   necessary
  • Inter-layer insulation no longer necessary
  • Creepage and leakage distances are included in the wire
  • Encapsulation not necessary
  • Much faster winding time

Application examples

  • HF transformers
  • Switch mode power supplies


  • Enamel insulated copper wires (magnet wire) (0.02-1.6mm   diameter, AWG 13-52)
  • Conductor cross section in compliance with DIN or customer   requirements

Insulation Material

  • * Polyester foil, 150°C (Mylar©)
    P.E.N. foil   (XR20), 155°C
  • ** Polymide foil, 220°C (Kapton©, Kapton© CR)