Cast resin technology optimizes the performance of transformers by protecting them from environmental conditions and/or insulating the medium voltage windings.

In combination with the winding technology, the resin guarantees the best dielectric performance, short-circuit resistance, and long-term reliability for special transformers and distribution transformers.

TMC offers products with copper and aluminium windings and the option of embedding with a Class F or Class H (180°C) system.


  • Fire resistant / self-extinguishing (F1)
  • Environmental and climate class standard E4-C3-F1. We are also able to produce transformers and reactors that meet the C5 climate standard
  • Enclosure covering from IP00 to IP68 and from NEMA1 to NEMA13
  • The most convenient cooling system according to customer needs such as air natural, air-air forced and air-water-forced
  • Low maintenance
  • Indoor installation (close to the load)
  • Eco-sustainable with use of materials that are more than 90% recyclable
Compact size
Simple installation, without the need for specialized work
Excellent resistance to overloads and short-circuit stresses
Ease of repair in case of failure or malfunction