Eaton LPS-RK-12SPI fuse - Class RK1 time-delay, 12 A
Part Number: LPS-RK-12SPI
Quick Summary
Eaton LPS-RK-12SPI fuse is a time-delay, current-limiting device designed to protect industrial electrical circuits. For engineers and procurement teams, selecting the right fuse reduces nuisance trips and minimizes downtime in panels and motor control applications. This Class RK1 family fuse is CE marked and RoHS compliant via Eaton's RoHS tool, offering clear regulatory alignment for global deployments. With a dual-element design and an indicating option, it supports straightforward diagnostics while delivering reliable protection. Adopting this standard Bussmann-series solution can improve stocking consistency and maintenance planning across multiple control systems, ultimately delivering steady performance in demanding industrial environments.
Product Information
Extended Description
LPS-RK-12SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 12 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-12SPI
UPC
051712626897
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
12 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
Fuse indicator
Non-indicating With Indicator
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 → Time-delay, dual-element, current-limiting design enables short surges to pass without tripping, while still clamping sustained faults. Business Impact → Fewer nuisance trips during motor start-up and load transients translates to higher line availability and reduced maintenance labor. Application → Ideal for panels feeding motors, conveyors, and similar equipment where inrush is common and uptime is critical. Long-tail keywords integrated → LPS RK1 time-delay fuse, dual-element current-limiting protection, motor startup protection, 600 Vac protection, RK1 protection class. Feature → High interrupt rating supports robust system protection; Business Impact → Limits damage to upstream switches and wiring during fault events, reducing repair costs. Application → Suitable for power distribution panels and MCC feeders. Long-tail keywords integrated → 300 kAIC interrupt rating at 600 Vac, high-energy fault protection, electricians’ preferred RK1 family. Feature → 12 A rating with compact form factor improves installation flexibility; Business Impact → Easier retrofits and faster integration into existing cabinets, reducing downtime. Application → Controls, automation panels, and space-constrained enclosures. Long-tail keywords integrated → 12 A protection, 5 in length fuse, standard packaging. Feature → Availability of indicating option enhances field diagnostics; Business Impact → Quick fault identification minimizes MTTR (mean time to repair). Application → Control boxes and switchgear with status indication. Long-tail keywords integrated → indicating fuse option, non-indicating vs indicating, field replaceability. Feature → Compliance and compatibility; Business Impact → CE Marked ensure acceptance in most European and global specs, RoHS compliance aligns with sustainability programs. Application → Global manufacturing sites and multi-region installations. Long-tail keywords integrated → CE Marked, RoHS tool access, standard Bussmann-series compatibility. Feature → Physical and installation attributes support reliability; Business Impact → Weight, dimensions, and packaging optimize shipping, handling, and on-site installation. Application → Retrofit projects and new builds with standard 5 in length and 0.81 in width. Long-tail keywords integrated → 5 in Product Length/Depth, 0.81 in Product Width, 1.6 lb weight, standard packaging.
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FAQs
The LPS-RK-12SPI is designed for 600 Vac circuits and fits standard fuse holders used in control panels, motor control centers, and power distribution enclosures. With a compact 5 in length and 0.81 in width, it integrates easily into existing racks and buses, while the dual-element design supports reliable operation in systems with frequent inrush currents.
It provides time-delay, current-limiting protection with an interrupt rating up to 300 kAIC at 600 Vac. The device tolerates short overloads (up to 500% for brief periods) without tripping, yet clears sustained faults quickly, typically within 10 seconds at 500% overload, minimizing damage to downstream equipment.
Yes. The LPS-RK-12SPI is CE marked and part of the Class RK1 family, which aligns with European standards for electrical protection devices. Eaton also provides a RoHS compliance pathway via its RoHS search tool, helping users verify regulatory posture across regions.
It uses a standard 5 inch length with a compact 0.81 by 0.81 inch footprint and a 1.6 lb weight, enabling straightforward retrofits and quick replacements. The option for a fuse indicator supports rapid fault diagnostics, reducing MTTR and supporting preventative maintenance programs.
By reducing nuisance trips during startup and transients, the LPS-RK-12SPI lowers downtime and maintenance labor. Its durable RK1 design and common form factor simplify stocking and cross-reference with Bussmann-series catalogues, translating to lower total cost of ownership in multi-site electrical infrastructure.