Eaton LPS-RK-225SPI Fuse - Class RK1, 300 kAIC, 600 Vac
Part Number: LPS-RK-225SPI
Quick Summary
The Eaton LPS-RK-225SPI fuse is a time-delay, current-limiting protection device designed for industrial power circuits. Engineers facing nuisance trips during motor start-ups and inrush events will appreciate its balanced response. CE Marked compliance ensures European safety standards are met, and RoHS compliance is verifiable via Eaton's RoHS tool, supporting global distribution. The Class RK1 construction and dual-element design deliver reliable fault clearing without sacrificing normal operation. In addition, the blade-end connection and electrically isolated end caps simplify panel integration and reduce field installation errors. This fuse supports safer, more efficient control panels and distribution boards while helping shorten downtime and extend equipment life.
Product Information
Extended Description
LPS-RK-225SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 225 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-225SPI
UPC
051712626972
Product Length/Depth
11.63 in
Product Height
2.36 in
Product Width
2.36 in
Product Weight
4.6 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
225 A
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
Voltage rating
600 Vac, 300 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 With Indicator
Quantity
1
Special features
Electrically isolated end cap
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Low-Peak 600 V LPS Class RK1 time-delay fuses, 70-600 A data sheet no. 1002
Feature is a time-delay, dual-element, current-limiting fuse that tolerates motor inrush while protecting conductors and devices. Business impact is reduced nuisance trips and enhanced equipment reliability, translating to fewer unplanned outages and improved line efficiency in MCCs and switchgear. Application includes motor control centers, transformers, and large branch circuits where short-term surges occur. Feature provides a 225 A rating with a 600 Vac operating voltage and 300 kAIC interrupt capability, enabling safer operation in high-energy environments and protecting downstream components from faults. Application advantage includes blade-end x blade-end connections and an electrically isolated end cap, which streamlines installation, minimizes miswiring, and supports quick replacement. Feature also includes standard packaging for easy stocking and compatibility with Bussmann RK1 holders. Returning to lifecycle cost, the time-delay design reduces downtime costs and improves maintenance planning by delivering dependable, predictable clearing. Industry context shows these fuses are well-suited for industrial PLC panels, drives, and power distribution boards, where reliability and quick fault clearing drive uptime.
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FAQs
The LPS-RK-225SPI uses blade end x blade end connections and features electrically isolated end caps for safer, faster panel installation. It ships in standard packaging and is compatible with common RK1 fuse holders, enabling straightforward replacement in existing switchgear and MCCs with minimal hardware changes.
The fuse is rated for 225 A with a voltage rating of 600 Vac (and 300 Vdc in certain configurations). It offers a 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc, with time-delay and current-limiting characteristics to tolerate inrush and protect downstream circuits during faults.
Yes. Its time-delay, dual-element design handles motor starting surges while providing fast fault clearing to protect motor windings and drives. The 225 A rating at 600 Vac matches typical motor feeders, and the Class RK1 construction supports reliable protection in control panels and MCCs.
This fuse is CE Marked, indicating conformity with European safety standards. RoHS compliance is supported and can be verified via Eaton's RoHS search tool, facilitating regulatory alignment for global installations. The device is designed as a Class RK1 time-delay fuse with a robust interrupt rating for critical applications.
The fuse reduces downtime through reliable fault clearing and minimizes nuisance trips during motor inrush, lowering maintenance interventions and unplanned outages. Its compatibility with standard RK1 holders simplifies replacement, leading to lower inventory complexity and faster service actions, contributing to a favorable total cost of ownership in industrial power distribution networks.