Overview

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

ules using EconoPACK+ IGBT 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.

Where and how to use

TIM foils are used to transfer the heat generated in the IGBT’s to the heatsink. Full instruc

tions on how to install TIM foils is described in document delivered with TIM IGBT spare part

kits. It’s possible to use a mix of IGBT’s with thermal grease and TIM foils. In parallel con

nected R8i modules it’s also possible to use a mix of modules using TIM foils and thermal grease.