Eaton LPS-RK-80SPI fuse - 300 kAIC at 600 Vac
Part Number: LPS-RK-80SPI
Quick Summary
The LPS-RK-80SPI fuse, from Eaton Bussmann, provides time-delay, current-limiting protection for industrial control circuits. Inrush currents and nuisance trips can drive up maintenance costs and plant downtime, making reliable protection critical. It is CE marked and built to Class RK1 standards, with a dual-element, time-delay design that offers fast yet selective interruption and robust performance. This solution supports standard blade-end connections and electrically isolated end caps, enabling straightforward retrofits, while delivering predictable lifecycle costs and improved equipment protection in 600 Vac environments. Designed for long service life in harsh factory conditions.
Product Information
Extended Description
LPS-RK-80SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 80 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-80SPI
UPC
051712626545
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
4 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
80 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
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Bussmann Full Line Catalog
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Bussmann series Fuseology
Bussmann series Low-Peak 600 V LPS Class RK1 time-delay fuses, 70-600 A data sheet no. 1002
Feature: Time-delay, dual-element, current-limiting fuse — Business Impact: Withstands motor inrush while preserving circuit protection, reducing unnecessary trips and extending equipment life in high-demand applications. Application: Industrial drives and panel feeders where reliable coordination minimizes downtime and maintenance costs. Feature: High interrupt rating of 300 kAIC at 600 Vac — Business Impact: Provides robust short-circuit protection for demanding 600 Vac networks, safeguarding wiring and components during fault events. Application: Main feeders and critical power distribution in manufacturing lines requiring strong fault tolerance. Feature: Class RK1 with blade-end x blade-end connections and CE Marked compliance — Business Impact: Simplifies retrofits and new installations with proven standards and safe, easy integration in existing panels. Application: OEM and upgrade projects across machine control panels and switchgear. Feature: With indicator option — Business Impact: Enables rapid health checks and condition monitoring, reducing troubleshooting time and improving maintenance planning. Application: Systems where fuse status visibility is essential for uptime. Feature: Physical dimensions and packaging (7.88 in L × 1.11 in W × 1.11 in H, 4 lb) and standard packaging — Business Impact: Predictable space planning, straightforward inventory management, and quick replacements in crowded panels. Application: Retrofit projects and new builds requiring compact, reliable protection with easy stocking.
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FAQs
The LPS-RK-80SPI uses blade-end x blade-end connections, designed for compatibility with standard panel layouts and Bussmann RK1 fuse families. The unit also features electrically isolated end caps for safer maintenance. With a 7.88 in length and a standard 1.11 in width/height envelope, it fits neatly into typical switchgear and control panels, enabling straightforward retrofits.
In 600 Vac motor feed scenarios, the 80 A rating paired with a 300 kAIC interrupt rating provides strong short-circuit protection while tolerating inrush. The time-delay design helps avoid nuisance trips during motor start-up, promoting smoother operation and higher equipment uptime in drives and feeders without compromising protection.
Yes. The LPS-RK-80SPI is CE marked and classified as Class RK1, aligning with common European standards for low-voltage fuses. Its dual-element design and compliant construction make it appropriate for use in CE-marked control panels and RK1 installations, supporting compliant panel builds and consistent protection across assemblies.
The dual-element, time-delay design is engineered to tolerate harmless inrush events while still interrupting during genuine faults. This selective coordination reduces nuisance trips, minimizes downtime, and protects downstream equipment, ensuring motors and loads start reliably without overreacting to brief surges typical in manufacturing environments.
Deploying LPS-RK-80SPI fuses can lower total maintenance costs by reducing unplanned downtime from nuisance trips and by extending equipment life through improved protection. With reliable 600 Vac performance, easy retrofits, and visible status indicators (where available), plants can achieve faster fault diagnosis and streamlined spare parts planning, improving overall line efficiency.