Eaton LPS-RK-20SPI Fuse - RK1 600 VAC CE Certified
Part Number: LPS-RK-20SPI
Quick Summary
The Eaton LPS-RK-20SPI fuse provides time-delay protection for 600 VAC industrial circuits in panels and machines. In many facilities, nuisance trips during inrush can halt production and increase maintenance costs; this dual-element RK1 design mitigates that risk while preserving protection. CE marked for European compliance and RoHS-compliant through Eaton's program, the fuse leverages a Class RK1 framework to deliver reliable short-circuit protection in harsh environments. With 20 A rating and 300 kAIC interrupt capability at 600 VAC, it fits standard protection schemes, while ferrule-end connections simplify installation in control panels and power distribution layouts. This combination supports faster commissioning, easier replacement, and lower total cost of ownership for OEMs and maintenance teams.
Product Information
Extended Description
LPS-RK-20SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 20 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-20SPI
UPC
051712618496
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
20 A
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 With Indicator
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
Feature → Time-delay, dual-element RK1 fuse enables protection against short circuits while tolerating inrush currents without nuisance trips, reducing downtime and preventing equipment damage. Business impact → Improved line uptime and longer motor/drive life, translating to predictable production schedules and lower maintenance costs. Application → Ideal for motor circuits, power supplies, and panel protection in CNC machines and assembly lines. Feature → High interrupt rating of 300 kAIC at 600 VAC provides robust fault clearance for large loads. Business impact → Minimizes arc energy and protects upstream circuits during short-circuit events, reducing downstream damage and improving safety. Application → Suitable for high-energy distribution points in industrial plants. Feature → 600 VAC, 300 VDC voltage rating with current-limiting action enhances safety and system reliability. Business impact → Supports versatile integration across AC and DC sections with consistent protection; Application → Power rails and control circuits requiring stringent protection. Feature → With Indicator option and ferrule-end connections eases fault locating and field replacement. Business impact → Faster troubleshooting and reduced maintenance time; Application → Refurbishment in control panels and retrofit projects. Feature → Standard packaging and 10-unit quantity enable straightforward stocking and quick deployment. Business impact → Streamlined procurement, reduced downtime during spares replenishment; Application → OEMs and service teams maintaining multiple identical panels.
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FAQs
The LPS-RK-20SPI uses ferrule-end terminations and fits standard Bussmann RK1 family footprints, making it compatible with many 5 in long fuse holders used in electrical protection panels. Its 0.81 in by 0.81 in cross-section and 5 in depth suit common control panel enclosures, while the 20 A rating aligns with typical motor control and power distribution protections. For retrofit projects, ensure the bus bar spacing and fuse holder are RK1-compatible to avoid fitment issues.
The LPS-RK-20SPI combines time-delay operation with current-limiting action. This means it tolerates short inrush currents common in motors and drives, preventing unnecessary trips, while still delivering rapid interruption during actual faults. The dual-element design helps distribute fault energy, protecting downstream equipment and reducing arc flash potential in high-energy circuits.
Yes. The 20 A RK1 time-delay, dual-element fuse is well-suited for motor circuits, drives, and panel power supplies in industrial environments. With a 600 VAC rating and a 300 kAIC interrupt rating, it handles short circuits in high-energy systems while accommodating inrush. Its robust construction and indicator option aid in quick fault localization during maintenance or upgrades.
The LPS-RK-20SPI is CE marked, indicating European market compliance, and is designed with RoHS considerations aligned to Eaton’s RoHS program. These certifications support regulatory deployment in many regions and simplify supplier qualification for regulated industries. The Class RK1 designation also aligns with established fuse protection standards, aiding interoperability in control panels and new builds.
The LPS-RK-20SPI reduces downtime by minimizing nuisance trips during inrush events while ensuring robust fault protection with a 300 kAIC interrupt rating at 600 VAC. Its indicator option speeds fault diagnostics, lowering maintenance time. Taken together, this translates to lower unplanned outages, shorter repair windows, and improved total cost of ownership for panel builders, OEMs, and service teams.