Bullet ECSR400 fuse is Eaton Bussmann’s Edison ECSR series 400 A, 600 V AC time-delay, dual-element current-limiting fuse (RK5) designed for feeder and branch protection in industrial power circuits. It uses knife-blade terminals, offers a 200 kAIC interrupt rating, and tolerates a 10-second overload at 500%, making it suitable for protecting motors, drives, and other high-load equipment in control panels. The fuse body measures about 2.34 inches in diameter and 11.63 inches long (59.4 x 295.4 mm), a size optimized for RK5 fuse blocks in demanding electrical applications.
