Cooper Bussmann by Eaton ECSR40 Time-Delay Fuse

Cooper Bussmann by Eaton ECSR40 is a 40 A, 600 VAC time-delay fuse from the Bussmann ECSR series, engineered for branch-circuit protection in industrial and commercial electrical panels. This UL-class RK-5 device is dual-element and non-indicating, with ferrule-end connections (Ferrule end x ferrule end) and a 200 kAIC interrupting rating at 600 V, delivering reliable protection for short-circuit events while tolerating brief overloads. Its time-delay characteristic is designed to accommodate startup surges and transient overloads, with a specification of about 10 seconds at 500% of rated current, making it well-suited for motor controllers, power distribution gear, and control-panel applications. The ECSR40 provides a robust balance of fast, dependable protection and nuisance-free operation in demanding environments, aligning with standard practices for industrial electrical protection and ensuring continuity for circuits that require brief, high-inrush currents.