Bussmann JKS125 Limitron Fuse

Bussmann's Limitron JKS-125 is a Class J, fast-acting, current-limiting fuse rated for 125 A at 600 V (600 VAC rating), engineered to protect power-distribution and control circuits from short circuits with an interrupting rating of 200 kAIC at 600 VAC. The JKS-125 uses a single-element cartridge body with bolt-on terminals for secure mounting and measures about 5.75 inches long and 1.50 inches in diameter, with a mass around 0.855 lb. This RoHS-compliant device belongs to the Limitron JKS family and carries catalog number JKS-125. It is intended for low-voltage applications in industrial equipment and panels where fast fault clearance is required, including feeders, transformers, and motor circuits in electrical distribution systems. Engineered for high-energy fault protection, its 200 kA interrupt rating ensures rapid disconnection to limit damage to downstream equipment and wiring in 600 V systems.