Bussmann JKS-125 Class J Fuse

The Bussmann JKS-125 is a Class J fast-acting, current-limiting fuse from Eaton’s Bussmann series, rated for 125 A at 600 V with an interrupt rating of 200 kAIC at 600 VAC. It uses bolted blade ends for secure mounting in low-voltage circuits and appears in a cylindrical cartridge body measuring 5.75 inches in length, 1.5 inches in height, and 1.5 inches in width, with an approximate weight of 0.855 lb. This non-indicating, rejection-style fuse is RoHS compliant and designed for low-voltage branch-circuit protection in industrial and commercial electrical systems where high fault currents may occur. The JKS-125 is built for applications requiring fast clearing of faults in 125 A circuits within 600 V systems, and it sits within the broader Class J family of Bussmann fuses.