Eaton LPJ-1SP Fuse - Class J Time-Delay Current-Limiting
Part Number: LPJ-1SP
Quick Summary
The Eaton LPJ-1SP fuse provides time-delay, current-limiting protection for industrial motor and power circuitry. This design helps minimize nuisance trips and simplifies service in space-constrained control panels. It is CE marked and RoHS compliant, with a Class J designation that aligns with common industrial standards for storable protection in electrical distribution. The dual-element configuration supports robust motor protection while maintaining compact footprint, and the ferrule-end connections improve field installation reliability. For OEMs and maintenance teams, the LPJ-1SP delivers dependable protection with installation flexibility in a wide range of equipment, from conveyors to motor drives and process controls.
Product Information
Extended Description
LPJ-1SP Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 1 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-1SP
UPC
051712523233
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
1 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC Vdc
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
Feature → Business Impact → Application: Time-delay, dual-element current-limiting design reduces nuisance tripping during motor inrush and transient faults, delivering smooth operation and lower maintenance costs. This translates to fewer production interruptions and lower spare-part consumption in automated lines and packaging equipment. Application: motor drives, conveyors, and machine controls benefit from stable start-up and improved life of feeders and contactors. Feature → Business Impact → Application: Class J fuse with 1 A rating and 600 Vac rating provides precise protection for low-voltage control circuits and power distribution in control panels, reducing the risk of overcurrent damage and enabling safer, compliant installations. Application: industrial automation cabinets, panelboards, and power distribution units. Feature → Business Impact → Application: Interrupt ratings of 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc enable reliable fault clearing in heavy-duty industrial environments, minimizing collateral damage and downtime during short circuits. Application: motor starters, drives, and equipment feeders in manufacturing and processing facilities. Feature → Business Impact → Application: Ferrule-end ferrule-end connection and standard packaging ensure quick, repeatable installations with consistent torque, improving field service speed and reducing commissioning time in new builds or upgrades. Application: retrofit projects and OEM panel builds. Feature → Business Impact → Application: Non-indicating indicators simplify panel aesthetics and reduce false alarms in environments where visual fault indication is unnecessary, lowering diagnostic complexity. Application: control panels with dense wiring where indicators could add clutter. Response time of 10 seconds at 500% overload provides predictable protection timing, supporting coordination with upstream protection devices and motor control circuits.
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FAQs
The LPJ-1SP uses ferrule-end connections and a compact footprint (2.25 in length, 0.81 in width and height) to simplify mounting in standard control panels. Its dual-element design tolerates motor inrush without excessive nuisance trips, and its non-indicating status keeps panel visuals clean during routine maintenance.
The time-delay characteristic accommodates motor inrush while still providing rapid current-limiting during fault conditions. The dual-element construction improves arc quenching and fault clearance, reducing damage to conductors and components. This results in higher reliability for loads such as pumps, compressors, and conveyors.
Yes. The LPJ-1SP is rated at 600 Vac and 1 A, with a 300 kAIC interrupt rating at 600 Vac, making it appropriate for protecting low-voltage control circuits and motor-related feeders in industrial environments. Its RoHS and CE compliance further support regulatory requirements in global facilities.
The LPJ-1SP is CE marked and RoHS compliant, aligning with European and global environmental and safety standards. Its Class J designation provides standardized protection characteristics, while the 1 A rating and 600 Vac specification meet common industrial protection needs for control panels and drives.
By reducing nuisance trips, cutting downtime during inrush events, and simplifying maintenance with reliable field installation, the LPJ-1SP lowers total cost of ownership. Its robust interrupt ratings minimize collateral damage in faults, protecting wiring and components and extending equipment life in manufacturing environments.