We don't get the Power Module in NA.
I suspect it's because the cable that is internal to the CT isn't big enough. Cable is sized based on current (measured here in Amps). The cable's ampacity is determined basically by cross sectional area and material (copper/aluminum/clad/etc.) with a small factor for stranding/solid (surface effect). If the European designed machines are fitted with cables of a certain ampacity and therefore cable size, they have to degrade the ampacity by approximately half when they are sold here because we have about half the voltage. V=IR, resistance is the constant.
Half the voltage means twice the current for the same power. An OF 2200 at 110 volts, draws 20 amps - full usage. At 220 volts, it draws 10 amps - full usage. In the U.S., the CT needs wire that can handle twice the current, roughly twice the cross-sectional area. I think that's why Festool can't provide a CT that will handle multiple tools safely on a 15-amp, 100-120VAC cord with it being split to run the CT also.
Tom
BTW: I doubt many people out there use any of their tools one at a time and draw more than about 15 amps very often - including the power required to run a Festool CT.