Industrial ECNR-250 Molded Case Circuit Breaker

The ECNR250 is a current-limiting, time-delay fuse in the Edison ECNR RK5 family, rated for 250 A at 250 V AC and 125 V DC, designed for feeder and branch protection in electrical distribution. This dual-element, non-indicating fuse uses blade-end terminations and provides up to 200 kAIC interrupt rating, with a time-delay characteristic that tolerates temporary overcurrents while preserving circuit integrity. Its physical form is about 2.06 inches wide by 8.63 inches long (roughly 52.3 mm by 219.2 mm), with blade-end x blade-end connections suitable for straightforward installation. Manufactured under the Edison brand (now Eaton), the ECNR250 is specified for 250 VAC operation and 125 VDC where applicable, and the catalog cut sheet emphasizes its RK5 construction and applicability to feeder/branch protection applications.