Bussmann JCW-3E Fuses

JCW-3E is a Bussmann (Eaton) medium‑voltage fuse cartridge from the JCW series designed for current‑limiting protection in high‑energy electrical circuits. It is a 3 A, E‑rated fuse with a voltage rating of 2.4 kV/5.5 kV AC and an RMS symmetrical interrupt rating of 40 kAIC, suitable for protecting transformers and feeders in MV distribution equipment. The fuse uses a single‑element design with ferrule end terminations (X ferrule) and measures about 7.31 inches in length and 1.56 inches in diameter, described as a single‑barrel configuration. This part is intended for protective applications where reliable high‑voltage overcurrent protection is required, and it sits in the Bussmann JCW family of current‑limiting, E‑rated fuses for electrical protection systems.