Eaton LPN-RK-100SP Fuse - Class RK1, 300 kAIC
Part Number: LPN-RK-100SP
Quick Summary
The Eaton LPN-RK-100SP fuse provides time-delay protection for motors and electrical feeders in industrial control panels. Startup surges and motor inrush can cause costly downtime, so selective protection reduces outages and unplanned maintenance. It aligns with Class RK1 safety standards and is RoHS compliant with CE marking for global use, simplifying regulatory compliance across sites. Designed for 100 A circuits and compatible with 250 Vac and 250 Vdc systems, it delivers reliable protection while supporting efficient panel assemblies, ease of replacement, and consistent Bussmann-series installations in industrial automation environments.
Product Information
Extended Description
LPN-RK-100SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 100 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-100SP
UPC
051712538459
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
RoHS Compliant CE Marked
Amperage Rating
100 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
5
Special features
Non-indicating, High in-rush current motor protection
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 → Business Impact → Application: Time-delay, dual-element, current-limiting design handles motor inrush and startup surges, reducing nuisance trips and extending equipment life; improves uptime for conveyors, fans, and pump systems in automated lines. Application: Motor protection in industrial drives and feeders where controlled inrush is critical and downtime costs are high. Feature → Business Impact → Application: Class RK1 construction with blade end connections enables fast, secure installs and straightforward retrofits; supports standardized panel wiring and modular protection strategies. Application: Replacement in existing Bussmann-series housings and new-build control panels requiring RK1 protection. Feature → Business Impact → Application: High interrupt rating (up to 300 kAIC at 250 Vac; 100 kAIC at 125 Vdc) ensures robust fault current handling, reducing arc energy and equipment damage. Application: Heavy-load feeders and motor circuits in industrial facilities with high short-circuit potential. Feature → Business Impact → Application: RoHS compliant and CE marked provide regulatory assurance for international deployments and supply chain traceability; simplifies compliance paperwork. Application: Global deployments in OEM equipment, packaging lines, and process automation. Feature → Business Impact → Application: Non-indicating fuse with standard packaging of five units per pack supports straightforward inventory management and quick replacements. Application: Panel assemblies and spare parts kits where quick swap-out reduces downtime and maintenance costs.
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FAQs
The LPN-RK-100SP uses blade end x blade end connections, matching standard Bussmann-series fixtures for quick, secure installs in control panels. Its Class RK1 design supports seamless retrofit into existing RK1 circuits and simplifies wiring due to predictable blade terminals.
This fuse is rated at 100 A with an interrupt rating of up to 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc, and a voltage rating of 250 Vac / 250 Vdc. The time-delay, dual-element construction enables high inrush protection without sacrificing protection accuracy.
Yes. The time-delay, current-limiting LPN-RK-100SP is specifically suited for motor protection where startup surges are common. It provides selective coordination to minimize downtime while protecting motor windings, drives, and feeders in automated equipment and process lines.
The fuse is RoHS compliant and CE marked, ensuring compliance with European regulations and facilitating global deployments in OEM equipment, panel assemblies, and industrial automation systems.
By reducing nuisance trips and enhancing protection coordination, the LPN-RK-100SP improves equipment uptime and extends service intervals. Its standardized packaging and RK1 compatibility also lowers spare-part inventory costs and speeds field replacements.