How range cuts are converted in Energy cuts?

Dear All,
It is not clear to me how the range (production) cuts are converted into energy cuts in Geant4.
For example, for the electrons, I was expecting the range cut to be equal to the CSDA range for a given energy but this is not the case for e- in lead (for energy larger than a few MeV). Maybe I am missing something. I hope someone can clarify this doubt.

Thank you in advance!