Eaton LPJ-500SPI Fuse - Class J, 600 Vac RoHS CE Marked
Part Number: LPJ-500SPI
Quick Summary
LPJ-500SPI is a high-current Class J fuse designed for motor protection and power distribution in industrial controls. Selecting fuses that tolerate motor inrush without nuisance trips can slow projects and increase downtime. This model combines time-delay operation with dual-element current-limiting to deliver reliable protection while accommodating high inrush motors. It carries RoHS compliance and CE marking, with a robust interrupt rating of up to 300 kAIC at 600 Vac, supporting safe start-up in demanding panels. In addition to safety and regulatory alignment, the LPJ-500SPI integrates easily into standard Bussmann Class J footprints, helping optimize panel space and reduce wiring complexity. This translates to faster commissioning and lower lifecycle costs for critical equipment.
Product Information
Extended Description
LPJ-500SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 500 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-500SPI
UPC
051712626477
Product Length/Depth
8 in
Product Height
2.5 in
Product Width
2.5 in
Product Weight
2.65 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
500 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
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: Time-delay, dual-element current-limiting design. Business Impact: Enables reliable motor protection while tolerating inrush, reducing nuisance trips during start-up. Application: Ideal for motor starters, conveyors, and pumps in control panels. Feature: Amperage rating of 500 A and voltage rating of 600 Vac with a 300 kAIC interrupt rating at 600 Vac. Business Impact: Supports high-power drives and large loads without compromising personnel or equipment safety. Application: Suitable for heavy electrical distribution and machine protection. Feature: Indicating option for fuse status visibility. Business Impact: Accelerates fault diagnosis and maintenance planning, minimizing downtime. Application: Field service and MCC/PLC panels where quick fault location matters. Feature: Physical compatibility with bolted blade ends and standard Class J footprints. Business Impact: Simplifies installation, reduces custom mounting hardware, and enables faster replacement. Application: Retrofit projects and new builds with standard Bussmann enclosures. Feature: High in-rush current motor protection and a 10 sec response at 500% current. Business Impact: Maintains circuit integrity during peak starts, lowering the risk of downstream equipment damage. Application: Heavy-duty motors and automation systems requiring robust transient protection.
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FAQs
LPJ-500SPI uses bolted blade end x bolted blade end connections, matching standard Bussmann Class J mounting footprints. The unit is designed for straightforward installation in control panels and power distribution boards, minimizing the need for exotic adapters. This compatibility simplifies retrofits and new-panel builds while ensuring secure, durable mechanical and electrical contact.
LPJ-500SPI employs time-delay dual-element current-limiting design to tolerate motor inrush during start-up and then curtail fault current quickly. With a 500 A rating and 600 Vac operating voltage, it provides up to 300 kAIC interrupt capability at 600 Vac. The 10-second response at 500% further protects motor windings and drives from short-duration surges.
Yes. The LPJ-500SPI is specifically rated for 600 Vac circuits and large interrupt capability, making it well-suited for main and feeder protection in power distribution panels and motor control centers. Its dual-element construction and current-limiting features help prevent nuisance faults while delivering reliable protection across industrial loads.
LPJ-500SPI is RoHS compliant and CE marked, ensuring it meets European environmental and safety standards. These certifications support regulatory compliance in many regions, simplify supplier qualification, and align with corporate responsibility goals while enabling seamless integration into standard industrial automation architectures.
Engineers can expect improved uptime due to reduced nuisance trips from inrush events, thanks to the time-delay design. The indicating option aids rapid fault localization, lowering diagnostic time. Combined with RoHS/CE compliance and standard footprint compatibility, the fuse minimizes downtime during replacements and supports lower lifecycle costs in motor-heavy automation systems.