Eaton LPS-RK-100SPI Fuse - Class RK1, 600 Vac
Part Number: LPS-RK-100SPI
Quick Summary
The Eaton LPS-RK-100SPI fuse provides time-delay, current-limiting protection for industrial control panels. This design helps prevent nuisance trips in demanding equipment and simplifies panel maintenance. It is CE marked and built to Class RK1 standards, with a dual-element configuration for reliable fault clearance in 600 Vac circuits. For engineers and procurement teams, this fuse offers consistent protection with easy integration into standard low-voltage protection schemes, supporting streamlined stocking, faster replacements, and improved system uptime.
Product Information
Extended Description
LPS-RK-100SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 100 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-100SPI
UPC
051712626569
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
4 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
100 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 With Indicator
Quantity
1
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, 70-600 A data sheet no. 1002
Feature → Time-delay, dual-element design provides controlled inrush handling and rapid fault clearance, reducing downtime and extending equipment life. Business Impact → Fewer nuisance trips translate to higher line availability and lower maintenance costs in motor drives and power-supply circuits. Application → Ideal for motor protection, transformers, and drive-controlled loads in industrial panels. Feature → High interrupt rating of 300 kAIC at 600 Vac (100 A rating) delivers robust fault isolation, protecting conductors and enabling proper upstream coordination. Business Impact → Enhanced safety margins and reduced arc energy during faults, supporting safer, more reliable electrical distribution. Application → Suitable for critical branch circuits in machine enclosures and control cabinets. Feature → Class RK1 with CE marking and dual-element technology ensures compliant, dependable protection in low-voltage systems. Business Impact → Meets regulatory expectations while simplifying procurement and maintenance. Application → Retrofit or new installations in automated lines requiring reliable fast-acting protection. Feature → Electrically isolated end caps and blade-end connections ease installation and field servicing. Business Impact → Faster assembly, safer maintenance, and compatible replacement in existing Bussmann-series ecosystems. Application → Compatible with standard Bussmann LPS RK1 protection strategies in control panels. Feature → Packaging in standard units with clear indicators (option for with indicator) supports quick inspection and inventory control. Business Impact → Reduces downtime during maintenance and improves fault-tracing efficiency. Application → Suitable for shop-floor assemblies and field service operations requiring clear fuse status reporting.
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FAQs
Install with blade-end x blade-end connections in standard protection footprints. The fuse length is 7.88 in, width 1.11 in, and height 1.11 in, with a 4 lb weight, enabling straightforward field replacement. Ensure correct amperage rating (100 A) and observe the electrical clearance for safety. If your panel supports electrically isolated end caps, use the option that suits your maintenance workflow.
Yes. The 100 A, 600 Vac rating with time-delay, dual-element design handles motor inrush and startup surges while providing current-limiting protection. With a 300 kAIC interrupt rating at 600 Vac, it offers robust fault clearance, making it appropriate for motor feeders and drive-controlled loads in industrial panels.
The fuse has an interrupt rating of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, delivering strong fault isolation for high-energy circuits and enabling reliable upstream coordination in protection schemes.
The LPS-RK-100SPI is CE marked, aligning with European safety and compliance requirements. It is a Class RK1 fuse, indicating its classification for time-delay, dual-element protection. These certifications support regulatory compliance and compatibility with common industrial protection standards.
Refer to Eaton Bussmann-series resources: Low Voltage Branch Circuit Fuse Chapter catalogs and the Bussmann datasheets, including the data sheet no. 1002 for LPS RK1 time-delay fuses (70–600 A). Files are available in Eaton’s catalog downloads and technical bulletins to support installation and application guidance.