Eaton LPS-RK-2-1/4SP Fuse - Class RK1, 600Vac 300kAIC
Part Number: LPS-RK-2-1/4SP
Quick Summary
The Eaton LPS-RK-2-1/4SP fuse is a time-delay Class RK1 device designed for motor protection and power distribution in industrial environments. Engineers often contend with nuisance tripping during motor starts and transient inrush, which can cause unnecessary downtime and maintenance. This fuse carries CE marking and adheres to Bussmann Series RK1 design standards, delivering reliable protection with a dual-element, current-limiting architecture. Its ferrule-end connections simplify installation and replacement, while the 5 inch form factor fits tight panels. With a 2.25 A rating, 600 Vac operation, and a 300 kAIC interrupt rating, it combines precise overcurrent protection with robust fault clearance for demanding industrial systems.
Product Information
Extended Description
LPS-RK-2-1/4SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 2.25 A, non-indicating fuse, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-2-1/4SP
UPC
051712548151
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
1.6 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
2.25 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC at 300 Vdc
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 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
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Bussmann series Fuseology
Bussmann series Low-Peak 600 V LPS Class RK1 time-delay fuses, up to 600 A data sheet no. 1001
Feature → Business Impact → Application: Time-delay, dual-element, current-limiting design tolerates short surges during motor start-ups without nuisance tripping, improving line uptime and equipment longevity. Application: motor starters, conveyors, and drive circuitry in manufacturing floors. Feature → Business Impact → Application: Amperage rating of 2.25 A with 600 Vac rating and 300 kAIC interrupt capability at 600 Vac provides strong fault clearance while protecting both the circuit and connected equipment. Application: branch circuits feeding small motors and control panels in process lines. Feature → Business Impact → Application: Class RK1 construction with ferrule-end connections and non-indicating design enables quick field replacement and compatibility with standard RK1 holders. Application: cabinet and panel installations across OEM assemblies. Feature → Business Impact → Application: Compact 5 in length and 0.81 in square profile with standard packaging (10 units) reduces cabinet crowding and lowers stocking costs. Application: large-scale installations in automotive, food & beverage, and packaging lines. Feature → Business Impact → Application: CE compliance ensures regulatory alignment and streamlined procurement for global operations. Application: compliance-driven projects and lean maintenance programs. Feature → Business Impact → Application: 10-second response time at 500% overload provides predictable protection margins for loads with surge profiles. Application: system startups and fault-clearing scenarios in industrial power distribution.
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FAQs
Yes. This fuse uses ferrule-end connections designed for Class RK1 holders and standard Bussmann RK1 accessories, enabling quick field replacement and minimal downtime in panelboards and control cabinets.
The fuse is rated at 2.25 A with a 600 Vac voltage rating and an interrupt rating of 300 kAIC at 600 Vac (100 kAIC at 300 Vdc). This combination supports reliable protection for motor loads and power circuits while delivering strong fault-clearing capability.
Ideal for motor starters, drives, and power distribution panels where startup surges occur. The time-delay design absorbs short overloads without nuisance trips, making it well-suited for manufacturing lines, conveyors, and processing equipment.
Yes. The device is CE Marked, indicating conformity with essential safety and performance standards in many global markets, and it adheres to the Bussmann RK1 family specifications for reliable industrial protection.
Its non-indicating, durable ferrule-end design reduces maintenance checks, while time-delay protection minimizes unscheduled downtime. Stocking a 10-unit packaging helps reduce procurement frequency and parts variability, contributing to lower maintenance and operational costs.