401's will always have a separate group disconnect, they have a separate group controller. Some of the earlier 411HS units, specifically Mod versions, had a separate disconnect that fed a 3 phase transformer, this in turn fed the hall button power supply.
Would the group controller for the 401's be typically installed in a separate cabinet, or did they just install the group boards and transformer in one of the controllers in the group?
Indeed, the 411 I was referring to was a modernization job (411M). Similar question to above, one of the controllers contains the hall button power supply transformer then?
Thanks for the feedback.
