Eaton LPJ-450SPI Fuse - Class J Time-Delay, 600 Vac RoHS CE
Part Number: LPJ-450SPI
Quick Summary
LPJ-450SPI fuse provides time-delay, current-limiting protection for motor circuits in industrial automation. Engineers often wrestle with nuisance trips during motor startups and inrush peaks that stall lines. It features CE Marked and RoHS compliant certifications, supporting global regulatory compliance. With Class J protection, a dual-element design, and robust interrupt ratings, it enhances motor reliability while reducing downtime and maintenance costs in power distribution panels. These attributes support safer, compliant installations and help preserve equipment life across manufacturing environments.
Product Information
Extended Description
LPJ-450SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 450 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-450SPI
UPC
051712626460
Product Length/Depth
8 in
Product Height
2.5 in
Product Width
2.5 in
Product Weight
2.6 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
450 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
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Feature: Class J time-delay, dual-element, current-limiting fuse; Business Impact: minimizes nuisance trips during motor startup and inrush events while delivering reliable fault clearing; Application: motor control centers, drives, and feeder circuits in manufacturing environments. The dual-element design combines slow-blow protection with fast-acting fault clearance, reducing wear on contactors and extending motor life. Feature: 450 A amperage rating and 600 Vac operating voltage; Business Impact: enables protection for high-current motors in standard industrial power networks, improving safety and reliability; Application: large motors and power distribution panels in process industries. Feature: 300 kA interrupt rating at 600 Vac and 100 kAIC at Vdc; Business Impact: robust short-circuit handling reduces cascading failures and downtime; Application: critical machinery and heavy-load equipment. Feature: Bolted blade end connections; Business Impact: ensures secure, vibration-resistant mounting with straightforward installation; Application: compact motor starters and disconnects. Feature: RoHS and CE compliance; Business Impact: simplifies global procurement and regulatory audits; Application: international facilities and multi-site deployments. This fuse also supports high-inrush motor protection in demanding environments, delivering consistent performance with minimal maintenance and extended service life.
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FAQs
Install the LPJ-450SPI using bolted blade-end connections to secure a rigid, vibration-resistant interface. Ensure the fuse is seated in a compatible holder or switchgear rated for Class J devices, tighten hardware to manufacturer torque specs, and verify the assembly is free from contamination. Use the standard 8 inch length and 2.5 inch width as a reference for enclosure space planning.
The LPJ-450SPI is a time-delay, dual-element current-limiting fuse that tolerates motor inrush while providing rapid fault clearing during faults. This reduces nuisance trips during startup, protecting contactors and wiring, and improving overall drive reliability. It is well-suited for motor control centers and drive sections in industrial settings.
Yes. The LPJ-450SPI carries CE marking and RoHS compliance, aligning with European safety, health, and environmental directives. This makes it suitable for global deployments and simplifies cross-border procurement and audits in multinational facilities.
The fuse is rated for 450 A with a voltage rating of 600 Vac and 300 Vdc. It provides an interrupt rating of 300 kAIC at 600 Vac and 100 kAIC at DC. These ratings enable reliable protection for high-current motors and power distribution circuits in industrial plants.
By reducing nuisance trips and extending motor life through controlled inrush handling, the LPJ-450SPI lowers maintenance and replacement costs. Its robust interrupt capacity minimizes cascading failures, while its standard packaging and bolted connections simplify installation, commissioning, and long-term service in production environments.