Eaton LPJ-600SP Fuse - Class J Time-Delay Dual-Element
Part Number: LPJ-600SP
Quick Summary
The Eaton LPJ-600SP fuse is a time-delay current-limiting device for motor protection. Engineers often face nuisance trips, undersized protection, and motor damage when selecting fuses for drives and MCCs. This Class J, CE-marked and RoHS-compliant solution addresses those pain points by delivering reliable protection with a controlled inrush response, while meeting global regulatory requirements. Leveraging the Bussmann series lineage, the LPJ-600SP supports robust protection for motor control centers and power distribution panels. The result is safer installations, easier spare-part management, and improved uptime across industrial systems.
Product Information
Extended Description
LPJ-600SP Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 600 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-600SP
UPC
051712522878
Product Length/Depth
8 in
Product Height
2.5 in
Product Width
2.5 in
Product Weight
2.65 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
600 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
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Special features
Indicating, High in-rush current motor protection
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Feature → Business Impact → Application: Time-delay, dual-element current-limiting design provides selective tripping, reducing nuisance outages and extending motor life in high inrush start-ups; improves uptime in production lines and minimizes collateral damage to feeders and drives. Application: motor control centers and drive systems requiring dependable start-up protection and fast fault clearing. Feature → Business Impact → Application: 600 A amperage rating with a 300 kAIC interrupt rating at 600 Vac/100 kAIC at 300 Vdc enables robust fault handling in medium-to-large motor circuits; enhances safety margins for feeders and cabinets. Application: industrial power distribution and heavy machinery control panels. Feature → Business Impact → Application: 8 in length and bolted blade end x bolted blade end connection simplifies mechanical mounting and reduces field modification time; supports standardized installations in MCCs. Application: retrofit and new-build projects with common Bussmann Class J footprints. Feature → Business Impact → Application: CE Marked and RoHS compliant construction ensures regulatory alignment and reduced compliance risk; supports global deployments and supplier audits. Application: multinational plants with strict regulatory requirements and cross-border maintenance. Feature → Business Impact → Application: Special features include indicating capabilities and high in-rush current motor protection for critical drives; aids fault isolation and motor protection strategy. Application: precision motor protection in HVAC, pumps, compressors, and robotics where precise protection coordination matters.
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FAQs
LPJ-600SP uses bolted blade-end connections in an 8 inch body with a 2.5 x 2.5 inch cross-section, designed for motor control centers, drives, and power distribution panels. Ensure the busbar and mounting hardware match the Class J footprint and torque specifications for a secure, code-compliant fit.
The LPJ-600SP is a 600 A time-delay, dual-element current-limiting fuse with a 300 kAIC interrupt rating at 600 Vac and 100 kAIC at 300 Vdc. It provides a 10 second response at 500% of rated current, balancing startup inrush with fast fault protection.
Yes, the LPJ-600SP is CE marked and RoHS compliant, aligning with safety, environmental, and regulatory requirements for global electrical installations and helping with internal and external audits.
Typical applications include motor drives, pumps, compressors, and other high-inrush equipment in MCCs. The time-delay, current-limiting characteristics support smooth motor start-ups while providing solid protection against short-circuits and overloads.
Choose LPJ-600SP for reduced nuisance trips and extended motor life; ensure proper torque on bolted blade ends and verify that the interrupt rating matches system fault currents. Refer to the datasheet and catalogs for replacement timing and compatibility, which aids in stocking and maintenance planning.