Eaton LPS-RK-1-4/10SP fuse - Class RK1, 600 Vac, 300 kAIC
Part Number: LPS-RK-1-4/10SP
Quick Summary
The Eaton LPS-RK-1-4/10SP fuse is a time-delay, current-limiting device used for branch circuit protection in industrial controls. In fast-moving panel environments, nuisance trips during inrush can cause costly downtime and rework. This fuse leverages Class RK1 construction with CE marking to deliver reliable protection while tolerating startup surges. Key certifications include CE Marked compliance and the RK1 class rating, with a dual-element design that enhances safety and predictability. For OEMs and panel builders, the compact form factor and Bussmann series lineage help simplify sourcing, stock planning, and fast replacement, reducing downtime and total cost of ownership across the protection lifecycle.
Product Information
Extended Description
LPS-RK-1-4/10SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 1.40 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-1-4/10SP
UPC
051712548113
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
1.40A
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
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
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
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 design delivers inrush tolerance without sacrificing protection, reducing nuisance trips in motor starts and power supplies. This supports higher machine uptime and smoother commissioning in panel assemblies using Bussmann RK1 fuses. Application: motor drives, transformers, and starter circuits in industrial equipment. Feature → Business Impact → Application: High interrupt ratings of up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc enable safe interruption of large fault currents, enhancing system resilience and protecting upstream feeders. Application: heavy-duty manufacturing lines and control panels where fault currents are unpredictable. Feature → Business Impact → Application: 1.40 A amperage rating and 600 Vac / 300 Vdc limits provide precise protection for small-to-medium loads while meeting European and North American standards. Application: low-power controls and protection segments in automated machinery. Feature → Business Impact → Application: Ferrule-end connections and a 5 in length simplify installation, reduce wiring complexity, and enable quick, repeatable replacements in standard RK1 fuse holders. Application: OEM panel builds and retrofit projects. Feature → Business Impact → Application: Non-indicating design minimizes panel chatter and maintenance, while standard packaging (10 per bundle) supports lean inventory and fast stocking. Application: service programs and field operations. Feature → Business Impact → Application: CE marked compliance and Class RK1 alignment support regulatory adherence and easier cross-border deployment. Application: international production lines and multi-site factories.
Get a Quick Quote for a Eaton LPS-RK-1-4/10SP
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton LPS-RK-1-4/10SP?
Enquire Now
FAQs
LPS-RK-1-4/10SP uses ferrule-end x ferrule-end connections designed for Bussmann RK1 fuse holders. It fits standard RK1 housings with a 5 in body length, enabling quick swap-ins during maintenance or panel retrofit without rewiring.
This fuse provides 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc. It is rated 600 Vac and 300 Vdc, with a time-delay, dual-element design suitable for inrush conditions common in motors and power supplies.
Yes. Its time-delay, dual-element construction tolerates inrush currents during motor startup while still delivering current-limiting protection. This reduces nuisance trips and preserves equipment protection in panel-mounted motor control circuits.
The fuse is CE marked, aligning with European regulatory standards. For broader compliance data, Eaton provides a RoHS search tool and detailed data sheets—use the provided links to verify RoHS status and ensure alignment with regional regulations.
With a robust interrupt rating, compact footprint, and non-indicating design, it minimizes maintenance overhead and space requirements in control panels. The high reliability reduces downtime, while standard packaging (10 per kit) supports efficient inventory management and faster field replacements.