Eaton LPJ-80SPI Fuse - Class J Time-Delay 80 A, 600 Vac
Part Number: LPJ-80SPI
Quick Summary
LPJ-80SPI fuse provides time-delay, current-limiting protection for industrial motor and power circuits. Infield, engineers often wrestle with nuisance trips during motor starts and inrush events, which can drive downtime and maintenance costs. This device carries CE marking and RoHS compliance, along with Class J performance, and offers a robust interrupt rating of 300 kAIC at 600 Vac (and 100 kAIC Vdc) for critical loads. For panel builders and OEMs, the fuse's bolted blade-end connection, compact footprint, and dual-element design translate into easier installation, reliable protection, and lower total cost of ownership, while supporting motor drives and control circuits in demanding environments.
Product Information
Extended Description
LPJ-80SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 80 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-80SPI
UPC
051712627528
Product Length/Depth
4.63 in
Product Height
1.13 in
Product Width
1.13 in
Product Weight
0.3 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
80 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 With Indicator
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
Time-delay, dual-element design delivers both sustained short-circuit protection and controlled inrush handling, reducing nuisance trips while preserving mechanical duty. The result is improved equipment uptime and longer motor life in drives, conveyors, and machine controllers. This fuse is well suited to control panels and motor starter circuits where inrush currents spike during startup. High interrupt rating of 300 kAIC at 600 Vac ensures safe fault interruption in large power systems; with 100 kAIC Vdc, it protects DC bus and control circuits in drives. This gives engineers confidence to consolidate protection devices in a single Class J fuse, simplifying panel layouts and improving fault clearing reliability. Class J form factor with bolted blade-end connections provides secure, vibration-tolerant mounting and straightforward replacement in existing Bussmann LPJ families. The compact 4.63 in length and 1.13 in width/height footprint fits standard enclosures, reducing substitution risk and improving spare parts consistency. Compliance with CE Marking and RoHS supports global regulatory requirements; the available indicator option offers visible status in operation, while the non-indicating version minimizes added components. The fuse is designed for high inrush motor protection, aligning with common factory applications and demanding drives. From a lifecycle perspective, these features translate to lower maintenance costs, reduced downtime, and predictable protection performance across mission-critical lines.
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FAQs
The LPJ-80SPI is designed for protective applications in electrical protection and circuit control, particularly in motor control centers, control panels, and power distribution networks. Its Class J dual-element time-delay design handles inrush while providing current limiting, reducing nuisance trips and protecting motor windings and drives in demanding industrial environments.
With an 80 A amperage rating and a 600 Vac voltage rating, the LPJ-80SPI protects medium-to-high power circuits while preserving the ability to interrupt faults cleanly. The 300 kAIC interrupt rating at 600 Vac ensures safe fault interruption, and the 100 kAIC Vdc rating protects DC buses in motor drives and control circuits, enhancing system reliability.
Class J LPJ-80SPI fuses combine time-delay protection with high current-limiting for motors and drives, reducing nuisance trips during startup. Bolted blade-end connections simplify panel installation and swap-outs, while the compact footprint fits standard enclosures. Rugged 300 kAIC at 600 Vac and 100 kAIC Vdc ratings provide robust fault handling, boosting uptime in demanding environments.
Yes. The LPJ-80SPI is CE marked and RoHS compliant, supporting European safety and environmental directives. This reduces hazardous substances in assemblies, aids supplier qualification, and helps manufacturers meet regulatory requirements for electrical protection devices in global markets and control panels.
The LPJ-80SPI provides reliable protection, but routine maintenance is still important. Inspect connections during periodic maintenance, replace the fuse after fault events, and verify the status indication if the indicator option is installed. Note that warranty is not applicable; ensure compatibility with bolted blade-end installations for continued protection.