Kapton® FN for Winding Wire Insulation Systems in Eurotram Engines

Kapton® FN for Winding Wire Insulation Systems in Eurotram Engines

Over the past few years, tramways have been making a comeback, with many cities opting to build new networks. Swift, silent, comfortable and clean, this type of transport is much appreciated by users who access the city centre or outskirts more easily. In order to respond to this growing demand, ALSTOM manufacture ultramodern tramways equipped with asynchronous, closed, auto-ventilated and air-cooled Eurotram engines. With power ranging from 100 to 200 kW, these engines have reduced LCC, thus increasing their profitability. The winding wire primary insulation system hinges on FN type Kapton® polyimide film by DuPont. Very, thin yet very resistant, Kapton® ensures extended functionnality and longevity of the engines. ALSTOM’s Eurotram engines combined with Kapton® insulation systems are used on the tramways of Grenoble, Bordeaux, Dublin and Katowice.

Reasons for choosing Kapton®

  •  Reduced life cycle costs (LCC)
  •  Proven resistance at very high temperatures
  •  Improved flexibility in use
  •  Durability and long life
  •  Reliable performance


This information corresponds to our current knowledge on the subject. It is offered solely to provide possible suggestions for your own experimentations. It is not intended, however, to substitute for any testing you may need to conduct to determine for yourself the suitability of our products for your particular purposes. This  information may be subject to revision as new knowledge and experience becomes available. Since we cannot anticipate all variations in actual end-use conditions, DuPont makes no warranties and assumes no liability in connection with any use of this information. Nothing in this publication is to be considered as a license to operate under or a recommendation to infringe any patent right.


Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, see “DuPont Medical Caution Statement:, H-51459 or H-50102-2.