Industrial JCW-1E Fuses

JCW-1E is a Bussmann (Eaton Bussmann) medium-voltage, current-limiting fuse link in the JCW family, engineered for transformer protection with ferrule-end terminals on both ends and a single-barrel cartridge that aligns with typical Bussmann JCW installation practices in high-voltage equipment. It is rated at 1 A with a voltage rating of 2.4 kV/5.5 kV AC and a 40 kAIC RMS interrupt rating, delivering reliable fault clearing while protecting downstream components in routine transformer circuits, and this E-rated (E class) specification places it in the JCW family’s transformer-protection niche. The fuse measures about 7.31 inches in length and roughly 1.63 inches in diameter, with a standard ferrule-end X ferrule end configuration designed for quick, secure connection and straightforward replacement in field service, consistent with JCW-1E catalog entries. As part of the Bussmann JCW line, JCW-1E is commonly used to protect potential transformers and small power transformers in electrical distribution networks, and it is widely stocked by major distributors such as Grainger, Crescent Electric, and Zoro.