Eaton LPS-RK-1SP Fuse - Class RK1, 1 A, 600 Vac
Part Number: LPS-RK-1SP
Quick Summary
LPS-RK-1SP fuse protects industrial control panels by delivering time-delay, current-limiting protection for low-voltage circuits. Inrush-heavy starts and motor loads often trigger nuisance trips with ordinary fuses; this model’s dual-element design tolerates brief surges while maintaining fast fault interruption. It carries CE Marked compliance and aligns with Class RK1 standards, featuring a 600 Vac / 300 Vdc rating and a 300 kAIC interrupt capability at 600 Vac. The compact 5 in length and ferrule-end connections simplify panel installation, while the 1 A rating provides precise, predictable protection for sensitive loads. Together with the Eaton Bussmann series platform, it offers reliable protection, easier procurement, and lower total cost of ownership for industrial automation projects.
Product Information
Extended Description
LPS-RK-1SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 1 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-1SP
UPC
051712548083
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 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
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, up to 600 A data sheet no. 1001
Time-delay, dual-element design provides selective protection for inrush-heavy circuits. This reduces nuisance trips during motor starts and accelerates equipment uptime, delivering lower maintenance costs and improved line productivity for conveyors, pumps, and HVAC equipment. Class RK1 compatibility ensures interchangeability within the Bussmann series, streamlining stocking, retrofits, and panel upgrades across new builds and modernizations. A 1 A amperage rating targets precise protection for sensitive control circuits, preventing nuisance disconnects while preserving safety margins in control logic and sensor networks. The fuse is rated for 600 Vac and 300 Vdc with a 300 kAIC interrupt capability at 600 Vac, delivering fast fault interruption and enhanced system safety in power distribution panels. Ferrule-end connections enable quick, reliable installations with minimal tooling and simple harnessing. Packaging is standard, with 10 pieces per pack, supporting efficient procurement and consistent replacement cycles for maintenance teams.
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FAQs
Install the LPS-RK-1SP using ferrule-end connections to the bus or terminal blocks as specified by Eaton’s installation guidelines. Ensure the circuit is de-energized, verify the 1 A rating matches the protected load, and tighten ferrules to the recommended torque. Maintain column spacing per enclosure standards and confirm the fuse is seated correctly to prevent arcing during fault conditions.
Confirm amperage rating of 1 A, voltage rating of 600 Vac and 300 Vdc, and interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. Also verify the time-delay, dual-element characteristics and the Class RK1 compatibility to ensure correct coordination with upstream protection and downstream devices.
Yes. The time-delay, dual-element design tolerates short inrush currents common to motors and drives, reducing nuisance trips while maintaining rapid fault interruption. For best results, coordinate with upstream protections and use the 1 A rating for loads that require precise protection without over-sizing.
The LPS-RK-1SP carries CE Marked compliance, supporting EU safety requirements. Documentation and catalogs (such as Low Voltage Branch Circuit Fuse Chapter references) are available via Eaton’s portal, and a RoHS information tool is offered to verify hazardous substance compliance where applicable.
Expect reduced maintenance downtime due to fewer nuisance trips, improved selectivity for fault protection, and easier procurement through standard Bussmann RK1 form-factor. These factors collectively lower total cost of ownership by extending component life, simplifying stocking, and accelerating panel commissioning in industrial environments.