Industrial ECNR-125 RK5 Molded Case Circuit Breaker

The Eaton Bussmann ECNR125 Edison Class RK5 fuse is a 125 A, 250 VAC (125 VDC) current-limiting, dual-element time-delay fuse designed for feeder and branch-circuit protection in industrial power systems. It provides motor overload, ground fault and short-circuit protection while tolerating temporary overloads associated with motor starts thanks to its RK5 time-delay characteristics. The cylindrical cartridge measures about 2.0 inches in length and 0.56 inches in diameter (roughly 50.8 mm × 14.2 mm) and weighs approximately 0.5 lb, designed for use in standard Edison fuse holders. It carries UL 241UL listings, CSA certification, and CE marking, with an interrupting rating of 200 kAIC at 250 VAC, making it suitable for high-energy, industrial protection applications.