Eaton LPS-RK-8SP fuse - Class RK1 Time-Delay, 600 Vac
Part Number: LPS-RK-8SP
Quick Summary
The Eaton Bussmann LPS-RK-8SP fuse provides fast-acting time-delay protection for motor starters and power circuits in commercial and industrial panels. Manufacturers often struggle with nuisance tripping and space constraints, which can lead to unplanned downtime and costly rewinds. This product is CE Marked for compliance, with RoHS information available through Eaton's RoHS Search Tool. Its dual-element, current-limiting design tolerates inrush while reliably interrupting faults, delivering safer operation and reduced maintenance. By selecting this compact, ferrule-ended fuse, engineers gain improved panel density, predictable coordination with protective devices, and lower total cost of ownership in high-demand automation environments.
Product Information
Extended Description
LPS-RK-8SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 8 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-8SP
UPC
051712548281
EAN
5027590154116
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.17 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
8 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
Special features
Electrically isolated end cap
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 handles inrush currents typical of motors and drives, reducing nuisance trips while still delivering rapid fault clearing in overload conditions. This improves uptime and lowers service costs in conveyors, presses, and HVAC systems. Application: motor control centers and drive panels where short-term surges occur. Feature → Business Impact → Application: 8 A rating with a 600 Vac / 300 Vdc rating and 300 kAIC at 600 Vac plus 100 kAIC at 300 Vdc ensures robust protection for medium-load circuits while maintaining safe, predictable shutdown behavior. Application: power distribution and machine control circuits requiring reliable protection without unwarranted outages. Feature → Business Impact → Application: Class RK1, ferrule-end connections, and electrically isolated end caps simplify installation, enable plug-and-play replacement, and improve safety in panel assemblies. Application: standard electrical protection retrofits and new builds. Feature → Business Impact → Application: Non-indicating indication behavior minimizes visual clutter in dense panels while providing consistent protection performance, aiding maintenance planning. Application: field-service teams performing routine checks. Feature → Business Impact → Application: Compact 5 in length and 0.81 in square cross-section supports higher packing density in control enclosures; reduces panel footprint and component counts. Application: small to mid-size industrial control cabinets.
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FAQs
Use ferrule-end connections to ensure secure, vibration-resistant attachment in standardized enclosures. The 5 in length and 0.81 in square profile support tight panel packing, while its non-indicating indicator reduces visual clutter. Ensure compatibility with Class RK1 protection schemes and verify voltage rating of 600 Vac in motor control and power distribution circuits.
The dual-element, time-delay design tolerates inrush currents common to motor starts, reducing nuisance trips, while the current-limiting feature provides rapid fault interruption. With an 8 A rating and 300 kAIC interrupt capacity at 600 Vac, it protects motors, drives, and panels without sacrificing safety or reliability in industrial applications.
Yes, it is rated for 300 Vdc with an interrupt capacity of 100 kAIC, enabling protection for DC-powered circuits in mixed-systems. However, always confirm circuit conditions align with the 300 Vdc rating and consider system coordination with other protection devices to meet your specific DC application requirements.
The LPS-RK-8SP is CE marked for compliance, ensuring conformity with European safety standards. For RoHS-related information, Eaton provides a RoHS Search Tool you can use to verify material compliance and traceability for your build or audit requirements.
The fuse offers reliable motor protection with reduced nuisance trips, enabling higher uptime and smoother production. Its compact form factor supports denser panel layouts, while the clear electrical ratings and protective performance simplify engineering validation, installation, and ongoing maintenance, ultimately lowering lifecycle costs.