Eaton LPJ-70SPI Fuse - Class J 600Vac 300kAIC

Feature: Time-delay, dual-element current-limiting design provides strong fault isolation while accommodating motor inrush. By combining a time-delay characteristic with current limiting, the LPJ-70SPI reduces nuisance trips during startup and protects downstream components from damaging overcurrents. In practice, this translates to fewer unplanned outages in conveyors, pumps, and machine tools, even under transient overload conditions. High interrupt rating and voltage handling: 300 kAIC at 600 Vac. This capability is essential for cleanly interrupting high-energy faults without equipment damage, which is critical in panelboards and switchgear. Engineers can spec LPJ-70SPI with greater confidence in demanding industrial networks and long-term protective coordination. Compact Class J form factor with bolted blade end connections enables straightforward panel mounting. The fuse measures 4.63 in in length with 1.12 in width and height, delivering a space-efficient solution for crowded control cabinets. Secure, bolted blade terminations improve contact reliability and reduce thermal hotspots during high-current events. Compliance and compatibility: CE marked and RoHS compliant align LPJ-70SPI with global environmental and safety standards. The dual-element design is compatible with Bussmann series catalogs and existing Class J protection schemes. With a standard packaging type, it ships ready for field retrofit or OEM assembly in new equipment builds. Operational performance and reliability: The fuse delivers a measured response of approximately 10 seconds at 500% overload. This predictable time-to-trip supports protective coordination and allows upstream protective devices to isolate faults efficiently. Overall, LPJ-70SPI can help lower maintenance costs, extend motor life, and improve equipment availability in heavy industry settings.