Eaton FA3B1 is a medium-voltage current-limiting full-range fuse designed for high-interruption protection in industrial power distribution systems. It features a 15.5kV voltage rating and a 200A current rating, housed in a compact, single-barrel design measuring 18.5 in x 2.1 in x 1.4 in and weighing 1 lb. The fuse utilizes an Arc-Strangler connection for enhanced safety and reliable performance in demanding applications.