Eaton LPS-RK-1-1/8SP Fuse - Class RK1 Time-Delay
Part Number: LPS-RK-1-1/8SP
Quick Summary
The Eaton Bussmann LPS-RK-1-1/8SP fuse is a time-delay current-limiting device protecting industrial power circuits. It is designed to withstand startup transients while guarding valuable equipment from overcurrents. This Class RK1, CE-marked fuse delivers reliable interruption performance with dual-element construction and a strong interrupt rating, making it well-suited for panel boards, motor starters, and control circuits. The fuse combines a compact form factor with predictable response, helping engineers reduce nuisance trips and improve line reliability. By selecting a well-matched protection device, your assemblies benefit from improved uptime, easier maintenance, and consistent fault-clearing behavior. This model also translates to smoother procurement and easier inventory management within industrial protection programs, aligning with standard practices for electrical protection and circuit control.
Product Information
Extended Description
LPS-RK-1-1/8SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 1.125 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-1-1/8SP
UPC
051712548090
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
1.125A
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
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 is time-delay dual-element fuse that tolerates inrush while providing rapid fault clearance → Business Impact reduces nuisance trips and protects drive equipment, minimizing unplanned downtime → Application ideal for motor starters and power panels in manufacturing and process environments. Feature is 1.125 A amperage rating and 600 Vac / 300 Vdc voltage rating → Business Impact precise protection for small control circuits and mixed AC/DC environments, lowering risk of overcurrent damage → Application in control cabinets and distributed power panels. Feature is 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc → Business Impact high fault-current protection, safer switchgear operation, and enhanced personnel safety → Application in high-current feeder circuits and critical loads. Feature is Class RK1 with CE compliance and non-indicating indicator → Business Impact standard-compliant protection with straightforward maintenance and clear why-it-matters for audits → Application in legacy and modern panels seeking reliable, industry-standard protection. Feature is compact 5 in length, 0.81 in width, 0.81 in height and 1.6 lb weight plus standard packaging → Business Impact easier retrofits and installation logistics, reducing install time and field labor → Application in space-constrained switchgear and new-build panels. Insight: leveraging dual-element, current-limiting RK1 fuses improves overall protection strategy while keeping replacement parts aligned with Bussmann catalogs and safety requirements.
Get a Quick Quote for a Eaton LPS-RK-1-1/8SP
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-1-1/8SP?
Enquire Now
FAQs
Install in standard RK1 fuse holders or compatible Bussmann/ Eaton panels. The unit is 5 inches long with a 0.81 inch width, designed for compact enclosures. Ensure proper alignment with busbars, secure mounting, and provide appropriate clearances around the fuse for cooling and accessibility during fuse replacement.
The fuse is rated 1.125 A with a voltage rating of 600 Vac and 300 Vdc. It provides an interrupt rating of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, and a response time of about 10 seconds at 500% of rated current, suitable for controlled inrush and surge events in industrial circuits.
Yes. The LPS-RK-1-1/8SP is a time-delay, dual-element fuse designed to tolerate motor inrush and startup surges while protecting controllers and power wiring, making it well-suited for motor starters and control panels in manufacturing environments.
This fuse is CE marked and classified as Class RK1, aligning with European market requirements and standard RK1 protection practices for time-delay fuses used in industrial power distribution.
Using the LPS-RK-1-1/8SP reduces nuisance trips and limits fault damage, improving uptime and maintenance efficiency. Its robust ratings support safer operation in high-current panels, translating to lower downtime costs and predictable protection in mixed AC/DC systems.