Eaton LPS-RK-225SP Fuse - Class RK1 Time-Delay
Part Number: LPS-RK-225SP
Quick Summary
LPS-RK-225SP fuses provide time-delay protection for industrial power circuits, ideal for control panels and motor loads. End users often face nuisance trips from startup surges, and this dual-element design helps minimize those outages. CE marking and RoHS compliance accompany Class RK1 protection, with 600 Vac / 300 Vdc ratings supporting broad industrial deployments. Engineered for easy integration in standard RK1 footprints, it offers reliable performance in OEM panel builds and service workflows. The combination of compact form, high interrupt rating, and current-limiting capability translates to safer panels, reduced downtime, and lower maintenance costs in demanding facilities.
Product Information
Extended Description
LPS-RK-225SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 225 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-225SP
UPC
051712548519
Product Length/Depth
11.63 in
Product Height
2.36 in
Product Width
2.36 in
Product Weight
4.6 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
225 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC at 300 Vdc
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
Quantity
1
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, 70-600 A data sheet no. 1002
Feature: Time-delay, dual-element design provides current-limiting protection while tolerating brief startup inrush. Business Impact: Minimizes nuisance trips and reduces fault energy to equipment, improving overall line reliability. Application: Motor drives, PLC panels, and control architectures where transient surges are common. Feature: 225 A amperage rating supports mid-range power distribution without oversizing components. Business Impact: Optimizes panel space and cost by eliminating unnecessary higher-current devices. Application: Electrical distribution blocks and main feeders in control cabinets. Feature: High interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc enhance fault tolerance. Business Impact: Increases system safety and reduces downtime during short circuits, protecting downstream equipment. Application: Industrial machines and switchgear where fault energy matters. Feature: Blade-end connections with an electrically isolated end cap simplify installation. Business Impact: Speeds field replacement and reduces wiring errors in crowded panels. Application: OEM builds and service upgrades using standard RK1 footprints. Feature: CE Marking and RoHS compliance along with Class RK1 documentation. Business Impact: Facilitates regulatory compliance and procurement across global supply chains. Application: Global manufacturing lines requiring traceable, standards-aligned protection. Feature: Non-indicating, dual-element fuse design with standard packaging. Business Impact: Streamlines stocking and maintenance planning for single-part replacements. Application: Service centers and OEMs managing spares for Bussmann RK1 families.
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FAQs
LPS-RK-225SP uses blade-end connections designed for RK1 footprints and an electrically isolated end cap, enabling straightforward replacement in standard Bussmann RK1 enclosures. Its 11.63 in length and dual-element construction support reliable integration with common control panels and switchgear without rework.
The fuse is time-delay and current-limiting, allowing brief startup surges without nuisance tripping while still providing fast fault clearing. With 225 A rating and 300 kAIC interrupt rating at 600 Vac, it protects motor drives and power circuits from short-circuit energy while minimizing downtime due to unnecessary outages.
Ideal for industrial automation panels, motor control centers, and power distribution in manufacturing and process industries. Its 600 Vac / 300 Vdc ratings and RK1 class make it a robust choice for equipment with mixed AC/DC needs and for OEMs seeking uniform protection across platforms.
This fuse is CE marked and RoHS compliant, aligning with European and global regulatory expectations. Class RK1 designation confirms compatibility with Bussmann’s RK1 family standards, aiding procurement and quality assurance across international supply chains.
The combination of time-delay operation and current-limiting reduces nuisance outages during startups, cutting maintenance disruptions. High interrupt ratings and durable construction lower replacement frequency and downtime, delivering a lower total cost of ownership for panel builders and service teams.