Eaton LPS-RK-70SP Fuse - Class RK1, Time-Delay
Part Number: LPS-RK-70SP
Quick Summary
The Eaton LPS-RK-70SP fuse protects industrial panel circuits with time-delay, current-limiting action, ensuring reliable protection for motors, drives, and control circuits. Engineers often face nuisance trips during motor starts and transient surges, which disrupt production and complicate preventive maintenance plans. CE marked and RoHS compliant, this Class RK1 dual-element fuse delivers predictable interruption while meeting global regulatory requirements. In practical terms, this means predictable protection, easier compliance, and reduced total cost of ownership in industrial circuit protection.
Product Information
Extended Description
LPS-RK-70SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPS-RK, time-delay, dual-element, current limiting fuse, 70 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-70SP
UPC
051712548427
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
4 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
70 A
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
Voltage rating
600 Vac, 300 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
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 600 V LPS Class RK1 time-delay fuses, 70-600 A data sheet no. 1002
Feature: Time-delay, dual-element, current-limiting design. Business Impact: This design tolerates motor inrush and transient surges without tripping, reducing downtime and wear on motor starters. Application: Ideal for motor starters, drives, and control circuits in industrial switchgear and panel assemblies. Feature: 70 A amperage rating supports medium-to-high current circuits while maintaining a compact form. Business Impact: Protects feeders without over-sizing equipment, improving panel density and standardization. Application: Suitable for branch circuits in automation panels, machine controls, and power distribution systems. Feature: Interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc provide robust fault-current protection. Business Impact: Enables faster fault clearance and minimizes equipment damage during short-circuit events. Application: Critical in high-energy environments such as packaging lines and heavy‑duty drives. Feature: Class RK1 designation with dual elements and blade-end x blade-end connections, plus electrically isolated end caps. Business Impact: Facilitates safer installation, easier field replacement, and seamless cross-reference with Bussmann stock. Application: Suitable for standard control panels and OEM equipment where common Bussmann modules are used. Feature: RoHS compliant and CE marked, with standard packaging for straightforward procurement. Business Impact: Supports global compliance and streamlined purchasing, reducing lead times and inventory complexity. Application: Global manufacturing lines, OEM builds, and retrofit projects needing regulatory conformity and easy sourcing.
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FAQs
For installation, confirm blade-end x blade-end connections and ensure the panel accommodates the dual-element RK1 fuse form factor. The electrically isolated end caps improve safety during replacement, and the standard packaging simplifies stocking. Use external indicators if you need status visibility, since this fuse is non-indicating by design.
The LPS-RK-70SP provides 70 A amperage, operates at 600 Vac and 300 Vdc, and offers interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. These specs enable robust protection for high-energy circuits and ensure swift clearing of faults in industrial power distribution.
Yes. The LPS-RK-70SP is RoHS compliant and CE marked, aligning with global regulations for electrical components. This compliance is crucial for global manufacturing, OEM builds, and retrofit projects that require regulatory conformity across multiple regions while maintaining reliable protection in RK1-class fuses.
Applications include motor starters, drives, and control circuits in industrial switchgear and panel assemblies. Its time-delay, current-limiting characteristics handle inrush and surges typical of motor starts, while the high interrupt ratings protect feeders and distribution panels, making it ideal for automation lines, conveyors, and packaging equipment.
The fuse’s reliable time-delay operation and robust ratings reduce nuisance trips, lowering downtime and maintenance intervals. Standard blade-end connections, electrically isolated end caps, and consistent RK1 compatibility simplify spares management and field replacements, contributing to lower lifecycle costs and faster procurement for OEMs and service teams.