The Transit Connect (TC) is minicargo, and unrelated to the larger Transit. In the U.S. market the TC has two generations:
The TC appears to have either a 150A or “Heavy Duty” 220A or 230A alt; this rating is written on the alt and may be noted on the window sticker.1) Aftermarket alts are available with up to 270A ratings.
See this post on routing the wiring through the firewall.
Ecoboost-equipped models may have smart alternators.2)