Eaton LPS-RK-35SP Fuse - Class RK1 CE Marked
Part Number: LPS-RK-35SP
Quick Summary
LPS-RK-35SP fuse provides time-delay protection for electrical circuits in industrial controls. Engineers often struggle with nuisance trips and improper coordination that slow commissioning and increase maintenance. This product is CE marked and RoHS-aligned to meet European safety and environmental standards. With dual-element time-delay performance and current-limiting action, it improves selective protection, reduces downtime, and extends panel life for drives, feeders, and motor circuits. By combining robust interrupt capacity with compact RK1 packaging, it simplifies stocking and replacement across multi-vendor panels. This translates to faster fault isolation, lower energy losses, and improved uptime for critical manufacturing lines.
Product Information
Extended Description
LPS-RK-35SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 35 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-35SP
UPC
051712548373
Product Length/Depth
5.5 in
Product Height
1.06 in
Product Width
1.06 in
Product Weight
2.6 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
35 A
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
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Electrically isolated end cap
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 construction provides selective protection and tolerates inrush currents without nuisance trips. Business Impact → Reduces unnecessary outages, extends equipment life, and lowers maintenance costs. Application → Motor feeders, drives, and control-panel circuits benefit from reliable inrush handling and coordinated protection. Feature → Current-limiting action with 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc. Business Impact → Limits fault energy, protecting wiring and downstream devices while improving safety and reliability. Application → Large loads and high-energy circuits in packaging, material handling, and manufacturing lines. Feature → Electrically isolated end caps and ferrule-end connections. Business Impact → Safer maintenance, easier installation, and reduced mis-wiring, enabling quick retrofit in existing panels. Application → Standard fuse blocks in retrofit projects and new builds. Feature → Class RK1, time-delay, non-indicating design, with standard packaging of 10 per kit. Business Impact → Simplifies stocking, improves replaceability, and supports rapid service in line-side protection. Application → OEM assemblies and service shops requiring consistent protection across multiple panels. Feature → 35 A rating and 5.5 in length with 1.06 in square cross-section offer compact integration in tight enclosures. Business Impact → Space-efficient protection solution that maintains performance in dense control enclosures. Application → Compact motor control centers and panel boards where space is at a premium. Objections addressed → For applications with frequent inrush, the time-delay characteristic minimizes nuisance trips; for fault-finding, the high interrupt rating protects conductors and components; and the ferrule-end terminations support dependable, vibration-resistant connections in industrial environments.
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FAQs
The LPS-RK-35SP is designed for industrial control panels, motor feeders, and drive circuits. With a 35 A rating, 600 Vac/300 Vdc capability, time-delay action, and a 300 kAIC interrupt rating at 600 Vac, it supports reliable protection in compact control enclosures while tolerating inrush in HVAC, conveyors, and pump systems.
Key ratings include 35 A amperage, 600 Vac and 300 Vdc voltage ratings, with a 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc. The device offers a time-delay response of about 10 seconds at 500% overload, providing selective protection for motors and feeders while limiting fault energy.
Its time-delay, dual-element construction allows safe interruption during short-circuit events while tolerating short inrush transients. The high interrupt rating minimizes damage to conductors and downstream devices, reducing unplanned downtime. The non-indicating design and ferrule-terminals simplify maintenance and consistent replacement across multiple panels.
Yes, the LPS-RK-35SP is CE marked, aligning with European safety and EMC expectations. The design also adheres to RoHS environmental standards, supporting reduced hazardous substances in electrical assemblies and simplifying compliance documentation for European projects.
Install with ferrule end-to-end connections and note the electrically isolated end caps for safe maintenance. The fuse is Class RK1 and non-indicating, with standard packaging of ten pieces per kit, which streamlines stocking and replacement in OEM builds or retrofit projects in dense panel environments.