Eaton LPN-RK-110SP Fuse - Class RK1, 300 kAIC
Part Number: LPN-RK-110SP
Quick Summary
The Eaton LPN-RK-110SP fuse provides reliable overcurrent protection for motors and control panels in manufacturing environments. This time-delay, dual-element device tolerates motor inrush while safeguarding circuits from damaging faults. Built to Class RK1 standards, it supports selective coordination in compact panels and is RoHS compliant with CE marking for global installations. With an 110 A rating and a 300 kAIC interrupt capability at 250 Vac, it delivers robust protection in demanding applications without sacrificing panel space. By combining ease of installation with proven reliability, the LPN-RK-110SP reduces nuisance trips and maintenance costs, delivering consistent uptime for industrial drives, conveyors, and other energy-intensive equipment.
Product Information
Extended Description
LPN-RK-110SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 110 A, non-indicating fuse, interrupting rating of 300 kA at 250 Vac and 100 kA at 125 Vdc
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-110SP
UPC
051712538466
Product Length/Depth
7.13 in
Product Height
1.61 in
Product Width
1.61 in
Product Weight
0.69 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
110 A
Interrupt rating
300 kAIC at 250 Vac 100 kAIC at 250 Vdc
Voltage rating
250 Vac, 250 Vdc
Fuse type
Time delay Current-limiting
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Quantity
1
Special features
Non-indicating, High in-rush current motor protection
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Time-delay dual-element design offers fast fault clearing while tolerating motor inrush, reducing nuisance trips and extending motor life. In practice, this means fewer unnecessary disconnects during startup and improved line power stability in assembly lines and packaging machinery. High interrupt rating of 300 kAIC at 250 Vac provides robust protection against short circuits, preserving downstream components and reducing fault propagation. Engineers can confidently size upstream protection and simplify coordination in main distribution panels for drives, motors, and feeders. Blade end x blade end connections streamline installation in standard fuse blocks, enabling quick retrofits and a tidy panel layout, while the 7.13 in length fits common enclosures without custom hardware. RoHS compliant and CE marked ensures global regulatory acceptance across OEMs and service providers, reducing compliance risk for international projects. Non-indicating design minimizes panel clutter and indicator maintenance in high-density control cabinets, aligning with a broad Eaton Bussmann series ecosystem for easy spares and future expansions.
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FAQs
Install the LPN-RK-110SP using blade end x blade end connectors in standard fuse blocks. Ensure panel space accommodates the 7.13 in length and 1.61 in width/height. Verify compatibility with Class RK1 assemblies and confirm upstream sizing matches the 110 A rating and 300 kAIC interrupt capacity to maintain selective coordination and safe shutdown during faults.
The fuse provides 110 A amperage rating, 250 Vac and 250 Vdc voltage ratings, and a 300 kAIC interrupt rating at 250 Vac (and 100 kAIC at 125 Vdc). It is a dual-element, time-delay, current-limiting device designed for motor protection in industrial control panels.
Yes. Its time-delay, dual-element design tolerates inrush currents typical of motor starts, while the current-limiting feature protects downstream components from short-circuit fault currents. This makes it well-suited for motor drives, conveyors, and other energy-intensive equipment where reliable startup is critical.
The LPN-RK-110SP is RoHS compliant and CE marked, aligning with global regulatory requirements. It also conforms to Class RK1 protection standards, enabling predictable coordination in industrial panels and compatibility with other Bussmann series components.
Maintenance benefits include reduced nuisance trips due to its inrush-tolerant design and non-indicating nuisance-free operation in dense panels. ROI advantages come from longer motor life, fewer unplanned outages, easier retrofits with standard blade-end connections, and streamlined spare-part sourcing within the Eaton Bussmann RK1 family.