Bussmann LPJ-300SP Class J Fuse

The Bussmann LPJ-300SP is a Class J low-peak, dual-element time-delay fuse rated for 300 A at up to 600 VAC (and 300 VDC), designed for bolt-on mounting in power-distribution equipment. With an interrupt rating of 300 kA at 600 VAC and 100 kA at 300 VDC, it protects circuits against brief motor-start surges while providing reliable overcurrent protection during sustained faults. This 300 A fuse uses a melamine body and is non-indicating, featuring bolt-on terminals that fit JM600 fuse blocks; it measures about 7-1/8 in in length and 2-1/8 in in diameter and weighs roughly 0.18 lb. The LPJ-300SP, manufactured by Bussmann (Eaton), is UL Listed, CSA Certified, and RoHS compliant, making it suitable for industrial and commercial electrical systems that require robust, time-delay protection for loads such as motors and drives.