Eaton LPJ-100SPI Class J fuse - 300 kAIC at 600 Vac
Part Number: LPJ-100SPI
Quick Summary
The LPJ-100SPI fuse provides time-delay, current-limiting protection for industrial motor drives and control circuits. Its time-delay design minimizes nuisance blowing during motor startup, while ensuring reliable coordination with upstream protection. This device is CE marked and RoHS compliant, supporting regulatory, safety, and sustainability goals. Part of the Bussmann Class J family, LPJ-100SPI provides 100 A service with a 300 kAIC interrupt rating at 600 Vac for compact, reliable panel protection. In practice, engineers gain faster fault isolation and easier maintenance planning thanks to its dual-element, current-limiting design. Its compact footprint plus bolted blade end connections simplify retrofits and new panel builds in industrial facilities.
Product Information
Extended Description
LPJ-100SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 100 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-100SPI
UPC
051712627542
Product Length/Depth
1.13 in
Product Height
4.63 in
Product Width
1.13 in
Product Weight
0.29 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
100 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 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
Time-delay, dual-element current-limiting design reduces nuisance tripping during motor startup, delivering fast fault current limitation to protect downstream drives. This translates to fewer unplanned outages and longer component life in pumps, conveyors, and HVAC systems. Paragraph 2: With a 100 A rating and a 600 Vac operating voltage, LPJ-100SPI supports up to 300 kAIC interrupt capacity, enabling safe protection in high-energy panels and motor control centers. Paragraph 3: An indicator option provides quick status checks in live panels, speeding maintenance and reducing diagnostic time. Paragraph 4: Class J construction with bolted blade end connections simplifies installation and retrofit work, while standard packaging supports scalable panel builds. Paragraph 5: CE and RoHS compliance helps meet regional safety and environmental requirements across plants, warehouses, and OEM applications, easing procurement and cross-border deployments. Paragraph 6: The fuse offers high in-rush protection for motor loads and a measured response time (10 seconds at 500%) that balances startup reliability with protection. Paragraph 7: The compact footprint—about 1.13 in by 1.13 in with a 4.63 in height—facilitates installation in space-constrained control panels.
Get a Quick Quote for a Eaton LPJ-100SPI
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton LPJ-100SPI?
Enquire Now
FAQs
The LPJ-100SPI uses bolted blade end connections compatible with standard Class J fuse holders in motor control panels and MCCs. When retrofitting, verify busbar spacing and ensure lugs match the 1.13 in by 4.63 in form factor. Proper torque on end caps and secure mounting reduce vibration-related wear and maintain consistent interrupt performance.
LPJ-100SPI is rated for 100 A with a 600 Vac operating voltage and a 300 kAIC interrupt capacity (600 Vac). It is well-suited for motor drives, pumps, and HVAC equipment in MCCs and protected panels, where high fault currents and controlled startup protection are essential.
Yes, the LPJ-100SPI is CE marked and RoHS compliant, helping meet regional safety, electrical, and environmental requirements. This simplifies cross-border procurement and reduces compliance-related risk for global projects and OEM sourcing.
The time-delay element allows brief overcurrent during startup without nuisance tripping, protecting motors from abrupt disconnects while still providing fast short-circuit protection. This balance reduces downtime, extends motor life, and improves overall process reliability in continuous-running equipment.
The indicator option provides visible status of the fuse condition, enabling quick fault diagnosis in energized panels without removing protection devices. This speeds maintenance planning, reduces troubleshooting time, and improves uptime in critical control systems.