Bussmann NSB LPJ-100SP Time Delay Fuses Industrial Grade

LPJ-100SP is an Eaton Bussmann series low-peak Class J fuse designed for industrial power circuits that demand reliable slow-blow protection. This dual-element, time-delay fuse is rated for 100 A and supports up to 600 VAC, with an interrupting rating of 300 kAIC at 600 VAC and 100 kAIC at 300 VDC, making it suitable for motor loads and panel-fed applications where startup surges occur. It is a non-indicating, bolt-on body fuse that fits standard LPJ form factors, measuring about 4.625 inches in length with a 1.109-inch diameter. As part of the LPJ family, it provides current-limiting protection to minimize damage from short circuits while allowing temporary overcurrents, strike through startup transients, and automatic recovery in normal operation. Typical use cases include industrial control circuits, power distribution panels, and downstream protection in Class J protection schemes where precise slow-blow response is required to ride through routine startup currents without nuisance trips.