Eaton LPJ-9SP Fuse - Class J, 300 kAIC at 600 Vac
Part Number: LPJ-9SP
Quick Summary
The Eaton LPJ-9SP fuse provides reliable overcurrent protection for motor start-up and control circuits in industrial equipment. Engineers often face nuisance trips during high inrush or mismatched ratings that stall production. This Class J, time-delay dual-element fuse provides high interrupt ratings and precise current limitation to minimize downtime. CE marking and RoHS compliance help streamline regulatory approvals across global panels. With ferrule-to-ferrule connections and a compact footprint, LPJ-9SP fits tight spaces while delivering proven protection. In motor drives and control panels, it helps meet safety and reliability targets through rapid response and consistent performance. The time-delay, dual-element design also delivers robust protection during short transients common in industrial environments.
Product Information
Extended Description
LPJ-9SP Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 9 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-9SP
UPC
051712523486
Product Length/Depth
2.25 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.19 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
9 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
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Indicating, High in-rush current motor protection
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series LPJ Low-Peak 1-60A data sheet No. 1006
Dual-element design provides reliable short-circuit protection while accommodating normal motor inrush. This approach minimizes energy let-through to motor windings and drives, reducing insulation stress. Ideal for motor drives and starting circuits in automation panels across packaging, material handling, and process industries. Time-delay behavior supports motor starters and control circuits by allowing temporary overload without tripping, protecting centrifugal fans, pumps, and conveyors from false faults during startup. This yields fewer nuisance trips, lower maintenance windows, and more predictable run-time under variable loads. Interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc deliver robust protection on high-energy feeders and equipment fed from modern industrial power systems. The 9 A current rating aligns with common protection schemes in compact PLC cabinets and regional motor starters, enabling straightforward replacement in legacy draws. Compact 2.25 in length, 0.81 in width, and 0.81 in height with ferrule-end connections simplifies panel layout, reduces wiring complexity, and accelerates installation in crowded electrical enclosures. Standard packaging and a non-indicating design support straightforward replacement, quick diagnostics, and minimal impact on panel aesthetics. CE Marked and RoHS compliant, LPJ-9SP aligns with global regulatory expectations and manufacturer quality standards for electrical protection devices. Access to Eaton catalogs and data sheets provides clear installation guidelines, warranty context, and application notes to reduce project risk. In practice, engineers realize faster commissioning and fewer alarms when selecting LPJ-9SP for motor protection in assembly lines, packaging machinery, and automated warehouses. Designed for compatibility with ferrule end-to-end connections and standard module footprints, it supports scalable protection as line layouts evolve.
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FAQs
LPJ-9SP is designed with ferrule-end x ferrule-end connections, so install by terminating each ferrule to the corresponding feed and load conductors in the control panel. Ensure the panel cutout accommodates the 2.25 in length and secure the fuse firmly to minimize vibration. Follow standard torque and wiring practices per Eaton recommendations.
Key electrical specifications include a 9 A amperage rating, 600 Vac / 300 Vdc voltage rating, and interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. It is a dual-element, time-delay, current-limiting fuse with non-indicating status and a 10-second response at 500% overload, making it well suited for motor drives, feeders, and control circuits in industrial equipment.
Yes. LPJ-9SP is designed for motor protection in automation equipment such as conveyors, pumps, and fans. Its dual-element design handles inrush while the 9 A rating keeps nuisance trips low, and the high interrupt ratings protect upstream and downstream equipment from short circuits. Its Class J form factor and ferrule-end connections simplify integration into standard industrial panels.
Certifications include CE marking and RoHS compliance, reflecting suitability for global assembly installations. These marks indicate compliance with essential health, safety, and environmental standards. For project approvals, verify equipment cabinets and regional regulations in your jurisdiction.
From a maintenance and ROI perspective, LPJ-9SP's reliable protection reduces unplanned downtime and motor wear, while its compact size and ferrule connections simplify replacement and diagnostics during scheduled maintenance. The high interrupt ratings protect feeders and downstream equipment, lowering repair costs after faults. The longer service life and faster commissioning contribute to lower lifecycle costs in industrial plants.