Bussmann LPJ-110SP Low-Peak Dual Element Time Delay Fuse

The Bussmann LPJ-110SP Low-Peak Class J dual-element time-delay fuse provides current-limiting protection for 600 VAC and 300 VDC circuits, rated at 110 A, and is built in a cartridge body compatible with Class J holders. It features separate overload and short-circuit elements for true time-delay operation, allowing inrush currents to pass while still delivering fast fault clearance. With an interrupting rating of up to 300 kA at AC and 100 kA at DC, this LPJ fuse supports reliable protection in power distribution panels and machinery disconnects. The 41 × 146 mm device belongs to the Low-Peak LPJ family, designed to minimize peak let-through current and arc damage while maintaining protection during faults. Common applications include branch circuit mains, industrial control panels, machinery disconnects, and power panelboards in commercial and industrial settings. Part of Eaton Bussmann’s LPJ line, it is a widely used option where high inrush currents occur but fast clearance on faults remains essential.