Eaton LPJ-50SPI LPJ fuse - Class J, 50 A, 300 kAIC

Time-delay, dual-element design enables selective protection. The LPJ-50SPI's slow-acting elements tolerate normal motor inrush while maintaining fast response to short circuits, reducing shutdowns and protecting power supplies. Business impact: fewer nuisance trips translate into higher line productivity and lower maintenance costs in batch processes or continuous processes. Application: ideal for motor starters, conveyor drives, and pump assemblies where startups are frequent. Electrical rating clarity: 50 A rating, 600 Vac, with a 300 kAIC interrupt capability at 600 Vac ensures robust protection for high-energy circuits. Dual-element current-limiting behavior minimizes arc energy and protects conductors without sacrificing essential motor performance. This makes it suitable for control cabinets and panel boards where precise protection is required and downtime is costly. Physical footprint and installation: dimensions of 2.38 in length, 1 in width, 1 in height with ferrule-end connections, standard packaging simplify retrofit or new build insertions. The ferrule-to-ferrule connection supports reliable wire terminations, reduces chance of terminal loosening, and makes field replacement quick for technicians. It also supports standardized mounting in industry-standard enclosures. Compliance and reliability: RoHS compliant and CE marked enable compatibility with global product standards, while Class J classification ensures interchangeability with Bussmann LPJ fuses and other Class J devices. The indication option provides a visible fuse status for easier maintenance, while non-indicating variants suit spaces with minimal wiring. Real-world performance data show a 10-second response time at 500% overload, ensuring protection without excessive nuisance clearing. Industry context and best practices: choosing an LPJ fuse with time-delay characteristics aligns with motor protection strategies for variable-speed drives and high-inertia loads. The dual-element approach balances speed and selectivity, helping you meet safety and reliability targets while controlling energy use. In short, LPJ-50SPI supports uptime, compliance, and total cost of ownership improvements for industrial facilities.