Eaton LPN-RK-125SPI Fuse - Class RK1, 300 kAIC at 250 Vac

Time-delay, dual-element design delivers robust protection without sacrificing startup performance. The combination of thermal and current-limiting characteristics minimizes nuisance trips on motor energization and heavy inrush, preserving equipment uptime. In real-world panels, this means fewer unplanned outages and easier fault diagnosis, even in environments with variable loads. The fuse's fast response to sustained fault currents helps protect wiring, contactors, and drive electronics from damage, reducing replacement costs over the life cycle. Class RK1 certification and blade-end connections simplify integration with existing Bussmann RK1 families and standard fuse holders. The 7.13 in product length and compact footprint fit compact enclosures without sacrificing protection area, allowing higher packing density in control panels. Standard packaging reduces handling and stocking requirements, while the dual-element construction supports predictable coordination. The design's compatibility with both AC and DC systems offers flexibility across mixed-voltage installations common in industrial settings. Electrical ratings: 125 A, 300 kAIC at 250 Vac provide strong feeder protection, while 250 Vdc support broad DC control use. The compact form factor and blade-end terminals enable quick replacement with minimal downtime. CE marking confirms regulatory alignment; non-indicating design minimizes signaling complexity while enabling high in-rush motor protection in demanding environments. This combination supports safer operation, longer asset life, and reduced total cost of ownership in industrial automation environments.