Nothing concrete.
When I installed the Timer Software. A text file called models.txt. was added to the common files Smarthome folder.
It has a 2466D ToggleLinc Dimmer listed in that file.
Also a 2466DH 1000 Watt ToggleLinc
Also a 2466S ToggleLinc Relay
That may mean absolutly nothing or could be a clue?