Eaton LPN-RK-90SPI Fuse - Class RK1, CE Marked
Part Number: LPN-RK-90SPI
Quick Summary
LPN-RK-90SPI is a Class RK1 fuse designed to protect industrial electrical circuits in panels and motor drives. When surges or inrushes occur, you need reliable time-delay protection that minimizes downtime and equipment damage. This device carries CE marking and adheres to Class RK1 protection standards, with a dual-element, time-delay design and a 300 kAIC interrupt rating at 250 VAC. Using LPN-RK-90SPI supports safer, compliant electrical protection while delivering predictable coordination in motor control centers, switchgear, and power distribution. By selecting a 90 A, five-unit pack, engineers can streamline spares, improve maintenance planning, and reduce downtime costs.
Product Information
Extended Description
LPN-RK-90SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 90 A, indicating fuse, interrupting rating of 300 kA at 250 Vac
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-90SPI
UPC
051712626514
Product Length/Depth
5.88 in
Product Height
1.1 in
Product Width
1.1 in
Product Weight
1.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
90 A
Interrupt rating
300 kAIC at 250 Vac 100 kAIC at 250 Vdc
Voltage rating
250 Vac, 250 Vdc
Fuse type
Time delay Current-limiting
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating With Indicator
Quantity
5
Special features
Electrically isolated end cap
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Feature: Time-delay, dual-element design delivers selective protection during motor start-ups and load surges. Impact: Reduces nuisance trips and extends equipment life by isolating only genuine faults. Application: Ideal for motor drives, fans, and pumps in switchgear and panels. Paragraph two continues with the same pattern: Feature: 90 A amperage rating paired with a 300 kAIC interrupt rating at 250 VAC. Impact: Provides robust fault current interruption, protecting conductors and downstream devices. Application: Suitable for circuit feeders, distribution panels, and MCCs in industrial environments. Paragraph three: Feature: Voltage ratings of 250 VAC and 250 VDC, plus Class RK1 and CE compliance. Impact: Ensures compatibility with standard European safety requirements and RK1 protective schemes. Application: Fits standard RK1 fuse holders in European and global equipment. Paragraph four: Feature: Time-delay, current-limiting fuse characteristics with dual elements and protective end caps. Impact: Enhances safety by limiting arc energy while allowing inrush as appropriate. Application: Used in control panels, switchgear assemblies, and power distribution units. Paragraph five: Feature: Electrically isolated end caps and standard packaging of five units per package. Impact: Simplifies installation, wiring, and stocking while minimizing maintenance downtime. Application: Streamlines procurement and replacement cycles in maintenance programs for plants. Paragraph six: Feature: Physical dimensions 5.88 in length, 1.1 in height and width, 1.5 lb weight. Impact: Easy to fit in compact cabinets and equipment racks with clear labeling. Application: Common in space-constrained enclosures and modular control panels.
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FAQs
The LPN-RK-90SPI is designed to fit standard Bussmann RK1 fuse holders and is supplied in a five-unit pack. Verify system compatibility by confirming 250 VAC or 250 VDC rating and a 90 A amperage. Ensure the indicator option is selected if status indication is required, and follow proper lockout/tagout procedures during replacement.
Key specs include a 90 A amperage rating, 300 kAIC interrupt rating at 250 VAC, and 100 kAIC at 250 VDC. Voltage ratings are 250 VAC and 250 VDC. The fuse type is time-delay with dual elements, designed for current limiting. Confirm CE compliance and Class RK1 compatibility for your protection scheme.
This fuse is ideal for motor control centers, switchgear, and control panels where inrush currents are common. It supports reliable protection for feeders and distribution panels in industrial environments, helping to maintain uptime in pumps, fans, conveyors, and other high-demand loads while meeting RK1 classification.
The LPN-RK-90SPI carries CE marking and is part of the Class RK1 fuse family. This combination supports European safety requirements and standard RK1 protection schemes, aiding regulatory compliance in many global installations.
High interrupt ratings reduce downtime by containing faults quickly, while time-delay operation minimizes nuisance trips during normal inrush. The five-unit pack helps stock management and maintenance planning, lowering spares costs and simplifying procurement for ongoing plant protection programs.