Brush ECNR35 Time Delay Dual Element Relay 35A 250V Class RK5

ECNR35 is a 35 A, 250 V AC dual‑element time‑delay fuse from the ECNR series (Cooper Bussmann, now Eaton Edison) that is UL Class RK5 listed and non‑indicating with ferrule end terminals. The cylindrical body measures about 3 inches in length and 0.81 inches in diameter, designed for general protection in lighting, heating and other non‑inductive loads, as well as motor‑circuit protection. It tolerates brief startup surges, specified as a 10‑second response at 500% overload, while providing fast clearing of genuine faults up to a 200 kA interrupting rating at 250 VAC. The ECNR35 is rated for 250 VAC and 125 VDC, delivering a continuous 35 A current rating for circuits that require reliable dual‑element time‑delay protection without indicator features. Common applications include fusible disconnect switches and OEM protection in industrial and commercial equipment, where durable RK5 protection is required to balance nuisance interruption with robust fault clearing.