Eaton LPN-RK-150SP Fuse - Class RK1, 150 A, 300 kAIC

Part Number: LPN-RK-150SP
Manufacturer
Eaton
Part number
LPN-RK-150SP

Quick Summary

Eaton Bussmann LPN-RK-150SP fuse provides time-delay, current-limiting protection for motor loads in industrial control panels. End users frequently suffer nuisance trips during motor startup; this design accommodates inrush without sacrificing fault protection. CE marked and RoHS compliant ensure European and global regulatory alignment, while Class RK1 construction supports reliable selective coordination in protection schemes. This fuse is well-suited for electrical protection and circuit control across motor drives, feeders, and switchgear, delivering uptime and predictable maintenance costs. With robust ratings and a compact blade-end format, it simplifies installation and supplier qualification across automation projects.

Product Information

Extended Description

LPN-RK-150SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 150 A, non-indicating fuse, interrupting rating of 300 kA at 250 Vac and 100 kA at 125 Vdc
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-150SP
UPC
051712538480
Product Length/Depth
7.13 in
Product Height
1.61 in
Product Width
1.61 in
Product Weight
0.69 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
150 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
Quantity
1
Special features
Non-indicating, High in-rush current motor protection
Feature: Time-delay, dual-element design. Business Impact: Enables motor start-up inrush currents without compromising fault protection. Application: Motor protection in control panels and drive circuits, reducing nuisance trips while maintaining safety and reliability. Feature: 150 A amperage rating. Business Impact: Provides appropriate protection for large motor loads and feeders, minimizing conductor damage during faults. Application: Heavy-load motor circuits and power distribution in automation environments, delivering consistent protective coordination. Feature: 300 kAIC interrupt rating at 250 Vac (and 100 kAIC at 250 Vdc). Business Impact: High fault-current withstand ensures rapid isolation of faults without collateral damage. Application: Industrial switchgear, motor feeders, and high-energy drives where fault currents are common. Feature: Class RK1 with blade end x blade end connections. Business Impact: Plug-and-play compatibility with standard Bussmann RK1 fuse holders, streamlining installation and replacement. Application: Control panels and electrical protection circuits that rely on quick, reliable swaps and consistent form factors. Feature: Non-indicating design with high in-rush motor protection. Business Impact: Reduces panel clutter and maintenance overhead while maintaining robust protection. Application: Motors with high inrush profiles, where external monitoring or panel indicators guide fault diagnosis. Feature: CE Marked and RoHS Compliant. Business Impact: Supports regulatory compliance across European and global markets, simplifying procurement and audits. Application: Global manufacturing environments and regulated industries seeking standardized protection devices.

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FAQs

The LPN-RK-150SP uses blade end x blade end connections and is a Class RK1 fuse designed for RK1-compatible fuse blocks. It installs by dropping into a standard Bussmann RK1 enclosure; ensure proper orientation and secure seating in the designated fuse holder, following Eaton's installation instructions for recommended clearances.
This fuse combines time-delay characteristics with a dual-element design, allowing motor startup surges to pass without nuisance tripping while still providing fast fault interruption. The 150 A rating paired with a 300 kAIC interrupt capacity on 250 Vac circuits protects wiring, contactors, and drives in automation panels.
Yes. The device is CE marked and RoHS compliant, aligning with essential European market requirements and environmental standards. This simplifies regulatory compliance across global projects and supports procurement consistency for multi-site deployments.
Amperage rating is 150 A, with an interrupt rating of 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc. Voltage rating is 250 Vac / 250 Vdc. Fuse type is time-delay, current-limiting with dual elements, Class RK1, and connections are blade end x blade end. Suitable for motor protection and circuit control in industrial panels.
The fuse measures 7.13 in in length, 1.61 in in width, and 1.61 in in height, with a weight of 0.69 lb. Packaging is Standard, with 1 unit per package. Blade-end connections and non-indicating design support reliable, space-efficient installation in standard Bussmann RK1 enclosures.