Eaton LPN-RK-9SP fuse - Class RK1, 9A, 300kAIC
Part Number: LPN-RK-9SP
Quick Summary
The Eaton LPN-RK-9SP fuse provides time-delay, current-limiting protection for motor and control circuits in industrial equipment. Nuisance trips during startup surges can drive maintenance costs and downtime, eroding productivity. This CE-marked Class RK1 device combines a 9 A rating with a 300 kAIC interrupt capability at 250 Vac and 100 kAIC at 125 Vdc, delivering safety and reliability. Its compact 2 in length and ferrule-end connections simplify retrofits, while the dual-element design tolerates inrush without compromising protection. By aligning with Bussmann series components and standard panel practices, it supports lean procurement and faster maintenance—benefiting OEMs, panel builders, and service teams alike.
Product Information
Extended Description
LPN-RK-9SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 9 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-9SP
UPC
051712538299
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
9 A
Interrupt rating
300 kAIC at 250 Vac 100 kAIC at 250 Vdc
Response time
8 sec at 500%
Voltage rating
250 Vac, 250 Vdc
Fuse type
Time delay Current-limiting
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Electrically isolated end cap
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Low-Peak 250 V LPN Class RK1 time-delay fuses,1/10-60 A data sheet no. 1003
Feature: Time-delay, dual-element, current-limiting fuse design → Business Impact: Tolerates startup surges without tripping, reducing unplanned downtime and extending equipment life → Application: Motor starters, power supplies, and automation panels. Feature: 9 A amperage rating with 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc → Business Impact: Strong fault current protection for critical circuits while enabling safe shutoff during faults → Application: Industrial control panels and process equipment. Feature: 2 in length with ferrule end x ferrule end connections → Business Impact: Compact footprint and straightforward retrofit into existing bussing and holders → Application: Space-constrained machine enclosures and retrofit projects. Feature: Class RK1 designation and CE Marked → Business Impact: Compliance with European standards and proven compatibility with Bussmann series libraries → Application: European installations and multicountry deployments. Feature: Electrically isolated end caps and non-indicating indicator → Business Impact: Safer handling for technicians and reduced cosmetic failure points, lowering maintenance cycles → Application: Field service and panel assemblies in automated lines.
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FAQs
The LPN-RK-9SP uses ferrule-end connections and fits standard Bussmann series RK1 configurations. Its 2 inch body length and 0.56 inch width/height allow straightforward insertion into typical panel assemblies and fuse holders used in motor control and automation applications.
It features time-delay, dual-element protection designed to tolerate startup surges. With a 8 second response in high overload conditions, the fuse minimizes nuisance trips during normal motor and drive startup while still interrupting persistent faults efficiently.
Yes. The fuse is rated for 250 Vac and 250 Vdc, with an interrupt rating of 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc. This makes it versatile for mixed-voltage panels and equipment across industrial automation environments.
Plan for a 2 inch long, ferrule-end to ferrule-end fuse in standard Bussmann RK1 footprints. It uses electrically isolated end caps for safe handling and features a non-indicating design, reducing visual maintenance cues. Packaging is standard, and quantity per bag is 10, supporting straightforward stocking and replacements.
The LPN-RK-9SP is CE marked, aligning with European safety standards, and is part of the Class RK1 family, ensuring compatibility with Bussmann series protection schemes. These attributes support regulatory compliance and reliable performance in industrial control and automation environments.