TIM foils or otherwise known as graphite sheet have been introduced in use in ACS800 R7i &

R8i industrial air-cooled modules as part of normal continuous improvements in the ACS800

product family. Benefits of using TIM foils in comparison to thermal grease are easier installa

tion and more durable heat transferring properties for longer periods of time. Durability par

ticularly improved in a cyclic application.

NOTE: Spare part wind specific modules with fixed codes will continue to be available and are

delivered with thermal grease and the wind specific DSW module repairs and other services

continue to use thermal grease until further notice.

All industrial air-cooled ACS800 R7i & R8i module repairs in Helsinki DSW are done with TIM

foil. DSW: s global implementation date for TIM foil is 1.11.2022.

All spare part IGBT kits for R7i & R8i have been available with TIM foils since 1.10.2022