BUSS JKS50 Class J Fuse High Voltage Industrial Grade

The BUSS JKS50 is Eaton’s Bussmann Series Class J fast‑acting, current‑limiting fuse (model JKS‑50 / JKS50) engineered for high‑voltage protection in industrial electrical systems; it’s commonly listed as Limitron JKS‑50 in some catalogs. This 50 A, 600 VAC device features a cylindrical, non‑indicating body and a rejection‑style construction, designed to fit standard Class J mounting in demanding environments. It provides a 200 kA interrupting rating at 600 VAC, enabling robust fault clearance for feeders, transformers, and other high‑voltage circuits in industrial equipment. As a Class J, fast‑acting, current‑limiting device, it delivers rapid protection with limited let‑through energy in industrial control and power distribution applications, and is widely referenced across major distributors. Major listings and retailers carry JKS‑50, including Grainger, Mouser, and Kirby Risk.