Eaton LPN-RK-90SP Fuse - Class RK1, 90 A, 300 kAIC
Part Number: LPN-RK-90SP
Quick Summary
Eaton Bussmann LPN-RK-90SP fuse provides time-delay, dual-element protection for industrial power circuits. Design engineers often face nuisance trips during motor inrush; this fuse is designed to handle those surges. As a Class RK1 device, it carries RoHS compliance and CE marking to support global installations. For procurement and maintenance teams, it aligns with the Bussmann series ecosystem and standard blade-end connectors, delivering reliable, scalable protection for low-voltage applications. This combination supports faster push-to-market timelines and reduces spare parts complexity. Engineers appreciate the fuse's electrically isolated end cap for safe servicing, and its rated 90 A capacity matches common motor control loads. With a 5-pack standard packaging, procurement is straightforward for panel builders and distributors.
Product Information
Extended Description
LPN-RK-90SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 90 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-90SP
UPC
051712538442
Product Length/Depth
5.88 in
Product Height
1.1 in
Product Width
1.1 in
Product Weight
1.5 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
90 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
5
Special features
Electrically isolated end cap
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 defends circuits during normal inrush while still interrupting severe faults quickly. The business impact is fewer nuisance trips and less wear on breakers, translating to longer motor and conductor life in variable-load equipment. In industrial panels, this means higher uptime for conveyors and pumps without sacrificing safety. Current-limiting action quickly limits energy during fault events, reducing arc flash exposure and conductor damage. With interruption ratings up to 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc, it provides strong fault protection for high-short-circuit environments. Class RK1 designation and blade-end connections simplify replacement and integration with standard Bussmann-series holders, reducing installation time and spare-part variety. RoHS compliance and CE marking ensure global regulatory alignment, while an electrically isolated end cap lowers maintenance risk. Standard packaging of five units supports predictable lead times for panel builders and distributors, aiding procurement planning and inventory control.
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FAQs
The LPN-RK-90SP uses blade-end x blade-end connections and is designed for Bussmann series fuse holders, making it compatible with standard low-voltage panel assemblies and replacement strategies in motor control and power distribution applications.
Amperage rating is 90 A. Voltage rating includes 250 Vac and 250 Vdc. It offers an interruption rating up to 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc, with a time-delay, dual-element, current-limiting design.
Yes. The LPN-RK-90SP is RoHS compliant and CE marked, supporting regulatory requirements for global installations.
Product length/depth is 5.88 in, height 1.1 in, width 1.1 in, and weight is approximately 1.5 lb per unit.
Class RK1 fuses are commonly used in low-voltage branch circuits, motor control panels, and power distribution assemblies where reliable limit-and-delay protection is needed with easy replacement in Bussmann-series ecosystems.