Eaton LPS-RK-70SP-TP Fuse - Class RK1, 70A, 600V
Part Number: LPS-RK-70SP-TP
Quick Summary
The Eaton LPS-RK-70SP-TP fuse protects electrical control panels and motor circuits from overcurrent. In demanding automation environments, engineers face nuisance trips and mismatched protection that cause downtime and maintenance costs. RoHS compliant and classified as a Class RK1 fuse, this device meets modern safety and regulatory expectations while delivering dependable performance in both AC and DC applications. Its tin-plated contacts and electrically isolated end caps simplify installation in crowded panels, while the 70 A rating and robust interrupt capabilities support scalable protection across power distribution and motor-control networks. Selecting this fuse provides reliable protection with a clear path to compliant, cost-efficient protection across multiple line-ups.
Product Information
Extended Description
LPS-RK-70SP-TP Eaton: Eaton Bussmann series LPS-RK fuse, Low-peak fuse, 70 A, Class RK1, Non-indicating, Time delay, Current-limiting, 100 kAIC at 300 Vdc, 300 kAIC at 600 V, Tin-plated, 600 V, 300 Vdc
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPS-RK-70SP-TP
UPC
051712752381
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
4 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
70 A
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
Voltage rating
600 V, 300 Vdc
Fuse type
Time delay Current-limiting
Material
Tin-plated
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Electrically isolated end cap
LPS-RK-70SP-TP~CLASS RK1 FUSE TIN PLATED
LPS-RK-70SP-TP~CLASS RK1 FUSE TIN PLATED
Bussmann series Fuseology
Eaton Specification Sheet - LPS-RK-70SP-TP
Feature: Time-delay, current-limiting design. Business Impact: Balances inrush tolerance with fast fault interruption, reducing nuisance trips while protecting conductors and devices. Application: Motor drives and control circuits where startup surges occur but fault protection is essential. Feature: High interrupt ratings of up to 100 kAIC at 300 Vdc and 300 kAIC at 600 Vac. Business Impact: Prevents catastrophic failure in high-energy circuits and enables safe sectionalization in power distribution. Application: Industrial plants, feeders, and DC bussing in automation environments. Feature: Tin-plated material. Business Impact: Improves conductivity and corrosion resistance for long-term reliability in harsh environments. Application: Panel assemblies with humid or dirty environments where contact quality matters. Feature: Class RK1 designation and electrically isolated end caps. Business Impact: Standardized, reliable protection with safe handling and straightforward replacement. Application: Field-serviceable panels and modular control units requiring clear fault isolation. Feature: RoHS compliance. Business Impact: Ensures regulatory alignment across regions, reducing compliance risk and facilitating global procurement. Application: Electronics manufacturing, automotive, and food/ beverage processing where RoHS is mandated. Feature: Non-indicating fuse. Business Impact: Simplifies cost and stocking, with the option to integrate external status indication in the control system. Application: Panel boards with centralized monitoring rather than local fuse indicators. This content integrates keywords such as Bussmann series fuse, Class RK1 fuses, 70A fuses, 600V fuses, tin-plated fuse, current-limiting protection, time-delay protection, RoHS compliant components, and industrial control protection to support technical searches while maintaining clear, practical guidance for engineers.
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FAQs
The LPS-RK-70SP-TP is designed for industrial electrical protection in control panels, motor starters, and power distribution blocks. It supports both AC and DC circuits up to 600 V and up to 70 A, making it suitable for protecting conveyors, pumps, and drive trains within automation systems. This fuse enables selective protection across mixed power rails while maintaining compatibility with standard RK1 interfaces.
The time-delay feature tolerates inrush currents typical of motors and transformers, reducing nuisance trips. The current-limiting function confines fault energy, protecting wiring insulation and downstream components. Together, they improve equipment uptime in motor starts and DC bus applications while maintaining fast response to true faults.
Key ratings include 70 A amperage, 100 kAIC at 300 Vdc, and 300 kAIC at 600 Vac. It is rated for 600 V AC and 300 V DC, with a time-delay, current-limiting design. The fuse is RoHS compliant and uses tin-plated material to ensure reliable contact performance in challenging environments.
Tin-plated contacts improve durability and corrosion resistance, supporting reliable long-term operation. The non-indicating design means you should implement external monitoring or panel schedules to track fuse status. Electrically isolated end caps simplify safe replacement in tight panels, while appropriate wire sizing and clearance per the 600 V / 300 Vdc ratings are essential.
Expected ROI stems from reduced downtime due to reliable overcurrent protection and high interrupt capability, plus RoHS-compliant parts that ease regulatory compliance. The 70 A rating supports scalable protection for evolving control systems, while external indication strategies can be used to monitor health without adding fuse indicators, balancing cost and maintenance needs.