Bussmann JDN15E High Voltage General Purpose E Rated Fuse

The Bussmann JDN-15E medium-voltage fuse is a high-voltage, E-rated, general-purpose cartridge fuse designed for transformer protection and MV feeder applications. This MTG Size D device carries a 15.5 kV voltage rating and a 15 A current rating, with an interrupting capability of 50 kA at 60 Hz, making it suitable for fault-current protection in medium-voltage equipment. The JDN-15E belongs to Bussmann’s JDN family of E-rated fuses and uses a cartridge body, enabling field replacement within MV protection schemes. Intended for general-purpose protection in transformer circuits, this fuse provides reliable coordination with standard MV protection strategies while tolerating brief surge events typical of switching operations. The model designation JDN-15E identifies the exact variant, aligning with Bussmann’s MTG Size D form factor to fit compatible fuse links and holders in medium-voltage applications. In summary, it’s a 15 A, 15.5 kV, Size D, E-rated general-purpose fuse from Bussmann, built to protect transformer feeders and MV switchgear against overcurrents while delivering robust interruption performance.