Industrial ECNR600 Time Delay Fuse

ECNR600 is a 600 A dual-element time-delay current-limiting fuse from Edison (Eaton Bussmann) in the RK5 class, intended for feeder and branch-circuit protection in industrial electrical systems. It is rated for 250 VAC (125 VDC) and uses knife-blade terminations with a cylindrical body suitable for fuse blocks and panels. The device provides a 200 kAIC interrupt rating and features a time-delay characteristic that accommodates inrush loads, specified as 10 seconds at 500% of rated current. The body measures about 2.59 inches in diameter and 10.38 inches in length. Common applications include feeder/branch circuits, AC drives, load centers, panel boards and switchboards, as well as non-inductive loads, lighting and heating. It carries UL-listed, CSA-certified, and CE-approved markings for widespread industrial use.