Cooper Bussmann LPJ-600SP Low-Peak Time Delay Fuse Class J

The Eaton Bussmann LPJ-600SP is a 600 A, low-peak Class J time-delay fuse designed for bolted-end installations in high-current circuits. It is rated for 600 VAC and 300 VDC with an interrupt rating of 300 kAIC at 600 VAC and 100 kAIC at 300 VDC, making it suitable for demanding power-distribution applications and loads with brief inrush. This dual-element, current-limiting fuse features a minimum 10 seconds of delay at 500% of rated current to ride out transient surges. The unit measures 8 inches long with a 2.5 by 2.5 inch footprint and weighs about 1.39 lb, and it uses bolted blade-end connections for secure installation. As part of the LPJ Low-Peak family, LPJ-600SP delivers long-time-delay protection within the Class J protection level for reliable circuit protection at 600 V class systems.