Industrial ECSR30 Time Delay Dual Element Fuse

The Eaton Edison ECSR30 is a 30 A, dual-element time-delay fuse in the Class RK5 family for 600 VAC circuits, designed to protect feeders and motor circuits from overloads while tolerating inrush currents. It uses ferrule-end terminals on both ends and measures about 0.81 in in diameter and 5 in long (roughly 20.6 x 127 mm), fitting standard RK5 panels and holders. The device delivers a 200 kAIC interrupting rating at 600 V and provides a defined time delay of 10 seconds minimum at 500% of rated current to prevent nuisance tripping during normal startup surges. This non-indicating fuse is part of Eaton's Edison ECSR line, a dual-element, current-limiting solution commonly used for feeder protection and motor backup within industrial electrical systems. When selecting a fuse in 600 VAC equipment, the ECSR30 offers a robust balance of protection and delay to handle short-term overloads without sacrificing reliability, making it suitable for applications where a 30 A, RK5-class time-delay fuse is required.