Eaton LPS-RK-1-1/2SP fuse - Class RK1, CE Marked
Part Number: LPS-RK-1-1/2SP
Quick Summary
The Eaton LPS-RK-1-1/2SP fuse provides reliable overcurrent protection for electrical panels and control circuits. This class RK1 time-delay, dual-element fuse helps prevent nuisance trips during motor startup while still delivering fast interruption for faults. It carries CE marking to demonstrate EU safety compliance and is rated for 600 Vac and 300 Vdc with an interrupt rating of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, supporting demanding industrial environments. Designed for plug-in protection, the LPS-RK series integrates with ferrule-end connections and standard Bussmann RK1 configurations, enabling straightforward field replacement. In practice, this translates to lower downtime, consistent protection, and simplified procurement within Eaton’s trusted family of electrical protection devices.
Product Information
Extended Description
LPS-RK-1-1/2SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 1.5 A, non-indicating fuse, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-1-1/2SP
UPC
051712547994
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
1.6 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
1.5 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC at 300 Vdc
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 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
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Bussmann series Fuseology
Bussmann series Low-Peak 600 V LPS Class RK1 time-delay fuses, up to 600 A data sheet no. 1001
Feature is a time-delay, dual-element fuse designed for RK1-class protection. Business Impact is reduced nuisance trips during inrush events while preserving rapid fault interruption, improving line continuity. Application is motor-control centers, switchgear, and process automation panels where startup surges are common. Feature provides current-limiting action that constrains fault currents to minimize arc flash risk and downstream damage, yielding measurable energy savings and protection margins. Application benefits include easy installation with ferrule-end connections and compatibility with standard Bussmann RK1 configurations, enabling quick swap-outs and inventory consolidation. Feature addresses common objections about inrush tolerance by balancing selectivity and protection, and it supports compliant, durable protection in harsh industrial environments. Industry context shows RK1 time-delay fuses as a trusted choice for high-availability electrical protection.
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FAQs
The LPS-RK-1-1/2SP is designed for electrical protection in control panels, switchgear, and motor control centers. It features ferrule-end connections and fits standard RK1 configurations, enabling straightforward replacement in Eaton Bussmann LPS RK1 assemblies while maintaining reliable protection for both AC and DC circuits.
The fuse is rated at 1.5 A with voltage ratings of 600 Vac and 300 Vdc. Its interrupt rating is 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, and it employs time-delay, dual-element design to balance fault protection with inrush tolerance for motor starts.
This fuse measures 5 inches in length with a square profile of 0.81 inches in height and width. It uses ferrule-end to ferrule-end connections and has a weight around 1.6 pounds, making it compatible with common panel cutouts and standard Bussmann RK1 hardware.
Common applications include protection for electrical panels in machine automation, motor control centers, and switchgear. The time-delay, current-limiting characteristics help tolerate inrush during startup while still offering robust fault interruption, supporting higher equipment availability and reduced maintenance in process automation environments.
The product carries CE Marking, indicating compliance with applicable EU safety standards for electrical protection devices. While CE is the primary documented certification in the data, the fuse is designed to meet industry norms for RK1 class protection and is supported by Eaton’s global safety and quality programs.