Eaton LPJ-175SP Fuse - Class J Time-Delay, 600 Vac
Part Number: LPJ-175SP
Quick Summary
Eaton LPJ-175SP fuse protects motor circuits with time-delay, current-limiting protection for industrial loads. This solves nuisance tripping caused by inrush and motor startup surges that chew into productivity. CE Marked and RoHS Compliant, with high interrupt ratings up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, the LPJ-175SP aligns with strict regulatory and safety requirements. Built for reliability in demanding environments, it offers robust protection without sacrificing performance. The unit is a compatible, standard Class J fuse that fits common bolted blade-end hardware, enabling straightforward integration into existing panels and motor control centers. This results in reduced downtime and improved system availability while maintaining cost-efficient protection for motor-driven equipment.
Product Information
Extended Description
LPJ-175SP Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 175 A, non-idicating fuse, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-175SP
UPC
051712523448
Product Length/Depth
5.75 in
Product Height
1.5 in
Product Width
1.5 in
Product Weight
0.8 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
175 A
Interrupt rating
100 kAIC Vdc 300 kAIC at 600 Vac
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 J
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Special features
Non-indicating, High in-rush current motor protection
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Feature → Business Impact → Application: The LPJ-175SP is a time-delay, dual-element current-limiting fuse. This configuration minimizes nuisance trips during motor start-up, reducing unplanned downtime and preserving motor windings, which translates to lower maintenance costs and longer asset life in conveyors, pumps, and HVAC drives. Application-wise, it supports reliable protection in industrial power distribution where large inrush currents are common. Feature → Business Impact → Application: With an interrupt rating of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, it provides upstream fault protection for switchgear and feeders, preventing cascading failures and limiting fault energy to downstream components. This is ideal for panel builders and plant operators seeking robust safety margins with minimal impact on availability. Feature → Business Impact → Application: Class J, time-delay, non-indicating design ensures compatibility with standard bolted blade end assemblies, simplifying retrofits and new installations in legacy equipment. Application spans motor drives, pumps, and line starts where quick fault clearance is essential without compromising startup behavior. Feature → Business Impact → Application: CE Mark and RoHS compliance streamline regulatory acceptance across regions, supporting global deployment and reducing procurement risk for cross-border projects. Application includes food and beverage, automotive, and material-handling facilities requiring compliant protection. Feature → Business Impact → Application: The Bussmann Series LPJ family’s low-peak design provides consistent fault current handling with reduced thermal stress. This improves energy efficiency and extends fuse life in systems with frequent switching, such as conveyors and packaging lines. Application: industrial automation panels where long service intervals and predictable protection lead to lower lifecycle costs. Feature → Business Impact → Application: The compact 5.75 in length, 1.5 in width, and 0.8 lb weight enable easier mounting in crowded control cabinets, promoting faster installations and simpler maintenance. Application: retrofit projects in cramped motor-control centers and new installations in space-constrained panels.
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FAQs
The LPJ-175SP uses bolted blade end connections, matching standard Class J fuse housings and common panel layouts. This facilitates straightforward retrofits and new installations without specialized adapters. Ensure the panel supports Class J devices and confirm clearance and lead lengths meet safety standards. Proper torque on the blade ends is essential to maintain contact integrity and consistent interrupt performance.
The fuse is rated for 175 A with voltage ratings of 600 Vac and 300 Vdc, and offers a dual-element current-limiting design. Its 300 kAIC interrupt rating at 600 Vac means it can safely interrupt high-energy faults, protecting upstream equipment. The 100 kAIC at 300 Vdc provides robust dc fault protection as well. The time-delay feature helps handle motor inrush without nuisance tripping while still isolating sustained faults quickly.
Yes. The LPJ-175SP is specifically designed for motor circuits and drives that experience startup surges. Its time-delay characteristic minimizes nuisance trips during acceleration, while its current-limiting action protects cables and components from fault energy. This makes it well-suited for conveyors, pumps, fans, and packaging lines in automation environments.
The LPJ-175SP is CE Marked and RoHS Compliant, supporting international regulatory expectations. These certifications help streamline procurement across regions and ensure the protection device aligns with environmental and safety standards. When sourcing for global projects, these marks reduce compliance risk and simplify document control for audits.
Using the LPJ-175SP can lower maintenance costs through reduced nuisance trips and longer motor-life due to controlled inrush protection. The fuse’s dual-element design offers reliable protection against short circuits and overloads, helping minimize downtime. In return, plant availability improves, and spare-part inventories can be standardized around a single Class J fuse family for similar duty.