Eaton LPN-RK-6-1/4SP fuse - CE Marked, RK1 class
Part Number: LPN-RK-6-1/4SP
Quick Summary
The Eaton LPN-RK-6-1/4SP fuse provides time-delay, dual-element protection for low-voltage circuits in control panels. This helps alleviate nuisance trips and installation challenges in tight, crowded enclosures. It carries CE Marked compliance and belongs to the Class RK1 family, aligning with common industrial protection standards. The design supports quick ferrule-end terminations and high interrupt ratings, delivering reliable protection while simplifying maintenance and reducing downtime for electrical protection and circuit control applications. With a 6.25A amperage rating and a voltage rating of 250 Vac / 125 Vdc, it covers a broad range of motors and drives in industrial settings.
Product Information
Extended Description
LPN-RK-6-1/4SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 6.25 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-6-1/4SP
UPC
051712538268
EAN
5027590092005
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.05 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
6.25A
Interrupt rating
100 kAIC at 125 Vdc 300 kAIC at 250 Vac
Response time
8 sec at 500%
Voltage rating
250 Vac, 125 Vdc
Fuse type
Time delay Current-limiting
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
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 250 V LPN Class RK1 time-delay fuses,1/10-60 A data sheet no. 1003
Feature: Time-delay dual-element design. Benefit: Balances fault protection with tolerance for startup surges, reducing nuisance trips and protecting sensitive loads; Application: Motor drives and power distribution where surges are common. Feature: Current-limiting capability with 6.25A rating. Benefit: Limits fault energy to protect conductors and equipment, lowering insulation stress and potential damage; Application: Control panels and branch circuits in automation environments. Feature: High interrupt ratings (100 kAIC at 125 Vdc, 300 kAIC at 250 Vac). Benefit: Enhanced safety margin in high-energy circuits, improving system reliability; Application: Industrial power distribution boards and machine controls. Feature: Ferrule end x ferrule end and electrically isolated end cap. Benefit: Fast, secure terminations with reduced touch hazards during servicing; Application: Field replacement and maintenance in dense control panels. Feature: Class RK1, non-indicating fuse, standard packaging of ten. Benefit: Industry-standard protection class with straightforward procurement and inventory management; Application: Routine stocking for OEMs and panel builders in automation facilities.
Get a Quick Quote for a Eaton LPN-RK-6-1/4SP
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton LPN-RK-6-1/4SP?
Enquire Now
FAQs
The LPN-RK-6-1/4SP uses ferrule-end terminations, which enables fast, secure connections in panel assemblies. With a 2 inch length and compact 0.56 inch by 0.56 inch cross-section, ensure terminals are properly crimped to prevent loose connections. Use manufacturer-recommended torque and termination procedures to maintain the 300 kAIC/100 kAIC interrupt ratings and maintain safe servicing procedures in dense control panels.
Key specs include a 6.25A amperage rating, voltage rating of 250 Vac / 125 Vdc, and current-limiting behavior with a time-delay characteristic. It offers 100 kAIC interrupt rating at 125 Vdc and 300 kAIC at 250 Vac, with a time-to-trip of approximately 8 seconds at 500% overcurrent. This makes it suitable for loads with startup surges while protecting conductors and equipment.
Yes. Its time-delay, dual-element design and current-limiting capability are well-suited for motor control circuits and drives in industrial panels. The Class RK1 rating ensures compatibility with Bussmann series schemes, while the ferrule-ended construction simplifies installation and maintenance in compact panel layouts, reducing downtime during fuse changes in motor-starting environments.
This fuse is CE Marked, indicating compliance with applicable European safety and performance standards. It is classified as a Class RK1 fuse, aligning with Bussmann RK1 family specifications for protection. The ferrule-end construction and non-indicating indicator are noted in the product data, supporting consistent installation practices in industrial settings.
The combination of high interrupt ratings, robust current-limiting, and time-delay protection minimizes unplanned outages by preventing cascade failures from short circuits while tolerating startup surges. Its compact ferrule-end design speeds replacements, reducing labor time. Packaging in standard quantities (ten per package) simplifies stocking for maintenance teams and OEMs, contributing to lower maintenance costs and shorter downtime in automation facilities.