The ECSR150RK5 is a 150 A, 600 V dual-element, time-delay fuse from Eaton’s Edison Bussmann family (Class RK5) with blade-end terminals, designed for feeder and branch circuit protection in industrial power distribution. It features a 200 kAIC interrupt rating and a 10-second time delay at 500% of rated current, providing deliberate fault-clearing while limiting nuisance outages. The fuse measures about 5.0 inches in length, 0.81 inches in width, and 0.81 inches in height, and it is non-indicating. It uses blade-end terminals and weighs roughly 0.4 lb, aligning with RK5 cartridge-body fuses for rugged industrial service.
