Eaton LPN-RK-600SPI fuse - Class RK1, 600 A, 300 kAIC
Part Number: LPN-RK-600SPI
Quick Summary
The Eaton LPN-RK-600SPI fuse protects industrial circuits with reliable overload protection. Engineers face nuisance trips from transient currents, yet require dependable interruption during faults. The product is CE marked for European compliance and belongs to the Class RK1 family, offering a time-delay, dual-element design and a robust interrupt rating for demanding applications. This combination helps safeguard motor loads, feeders, and control panels while reducing downtime and maintenance costs. Its blade-end connections and electrically isolated end caps simplify installation and enhance safety in panel builds, making it a practical choice for high-uptime environments. By aligning with Bussmann legacy and common industry practices, it also supports predictable procurement and lifecycle economics for electrical protection strategies.
Product Information
Extended Description
LPN-RK-600SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 600 A, indicating fuse, interrupting rating of 300 kA at 250 Vac
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-600SPI
UPC
051712626866
Product Length/Depth
10.38 in
Product Height
2.88 in
Product Width
2.88 in
Product Weight
3.25 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
600 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
Connection
Blade end x blade end
Fuse indicator
Non-indicating With Indicator
Quantity
1
Special features
Electrically isolated end cap
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Feature: Time-delay, dual-element design. Business Impact: Reduces nuisance trips during inrush and short-duration faults while preserving rapid interruption during sustained faults. Application: Ideal for motor starters, transformers, and power feeders in panel assemblies where inrush is common. Feature: 600 A amperage rating with 250 Vac/250 Vdc ratings. Business Impact: Enables safe protection of high-current circuits without compromising system availability. Application: Suitable for large branch circuits in industrial controls and distribution panels. Feature: 300 kAIC interrupt rating at 250 Vac and 100 kAIC at 250 Vdc. Business Impact: Delivers strong fault interruption capability in demanding electrical environments, improving uptime and safety. Application: Power distribution and switchgear where short-circuit energy is a critical concern. Feature: Class RK1 with blade-end x blade-end connections and electrically isolated end caps. Business Impact: Simplifies installation and maintenance, reduces risk of arcing, and supports modular panel design. Application: Retrofit and new-build control panels, machine centers, and MCCs. Feature: With Indicator fuse option. Business Impact: Provides clear visibility of fuse status, enabling faster maintenance decisions and reduced mean time to repair. Application: Industrial automation cabinets and safety-critical controls. Feature: Standard packaging with one fuse per pack. Business Impact: Streamlines procurement and inventory management for maintenance teams. Application: OEM assemblies and service stock for Eaton Bussmann series fuses.
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FAQs
The LPN-RK-600SPI uses blade-end x blade-end connections, which simplifies panel mounting and wiring. The design includes an electrically isolated end cap to minimize arcing risk during installation and servicing. Standard packaging supports straightforward stocking, and compatibility with typical Bussmann series housings helps reduce retrofit time and rework in existing panels.
Key specs include a 600 A amperage rating, 250 Vac and 250 Vdc voltage ratings, and an interrupt rating of 300 kAIC at 250 Vac with 100 kAIC at 250 Vdc. The fuse is time-delay and dual-element, offering current-limiting protection. These features help balance inrush tolerance with fast fault interruption in motor and distribution circuits.
This RK1-class fuse is well-suited for industrial control panels, motor drives, feeders, and large-branch circuits where inrush currents are common. It is particularly advantageous in equipment with frequent startups or transient surges, such as conveyor systems, presses, and packaging lines, where reliable protection and longer life are critical to uptime.
The LPN-RK-600SPI is CE marked, aligning with European safety and performance standards. It belongs to the Class RK1 family, reflecting Bussmann’s established protection criteria for time-delay, dual-element fuses. While other certifications like SIL or IP ratings are not listed in the data, CE compliance provides essential regulatory assurance for European installations.
With time-delay dual-element protection, the fuse tolerates inrush without nuisance trips, reducing unnecessary replacements. Its high interrupt rating and safe, mechanically straightforward blade-end connections shorten maintenance windows. Visibility features and standardized packaging streamline stock management, helping to minimize downtime costs in manufacturing environments.