Eaton LPJ-20SPI Fuse - Class J Time-Delay, 600 Vac
Part Number: LPJ-20SPI
Quick Summary
The Eaton LPJ-20SPI fuse is a Class J time-delay current-limiting device designed for motor and power circuits. Engineers frequently confront nuisance tripping during motor startups and must balance protection with inrush tolerance. This fuse is CE Marked and RoHS Compliant, offering reliable regulatory alignment while supporting durable service in demanding environments. With dual-element protection and ferrule-end connections, it delivers robust safety and straightforward installation, helpingyou achieve uptime and compliance in industrial panels. Leveraging these specifications in your designs reduces panel complexity and improves protection for 600 Vac motor drives and related equipment.
Product Information
Extended Description
LPJ-20SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 20 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-20SPI
UPC
051712626330
EAN
5027590245371
Product Length/Depth
2.25 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.105 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
20 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
Ferrule end x ferrule end
Fuse indicator
Non-indicating With Indicator
Special features
Non-indicating, High in-rush current motor protection
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series LPJ Low-Peak 1-60A data sheet No. 1006
Feature: Dual-element current-limiting design provides fast response to faults while tolerating short inrush. Business Impact: Reduces collateral damage and downtime, improving machine uptime and extending motor life in high-energy circuits. Application: Ideal for motor starters and drives in manufacturing lines where surges are common. Feature: 20 A rating with a 300 kAIC interrupt rating at 600 Vac ensures strong protection for high-energy faults. Business Impact: Prevents catastrophic faults without sacrificing normal operation, lowering repair costs and unplanned downtime. Application: Suitable for heavy-duty conveyors, pumps, and compressors in process industries. Feature: Class J fuse form factor with ferrule end x ferrule end connections. Business Impact: Easy drop-in replacement in mounting panels and standard busbars, reducing installation time and wiring errors. Application: Industrial control panels and equipment enclosures requiring compact, reliable protection. Feature: CE Marked and RoHS Compliant. Business Impact: Supports global compliance, simplifying cross-border deployments and supplier audits. Application: Global manufacturing environments with strict regulatory requirements. Feature: Special features include non-indicating option with indicator and high in-rush current motor protection. Business Impact: Provides flexibility for maintenance and condition monitoring while safeguarding motors during startup. Application: Motors in packaging, HVAC, and material handling where controlled inrush is critical. Feature: Time-delay, dual-element operation offers a measured response to sustained faults. Business Impact: Balances fast protection with tolerance to normal operation transients, reducing nuisance trips in drive circuits. Application: 600 Vac motor circuits and drive protection across industrial facilities.
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FAQs
Install the LPJ-20SPI using its ferrule-end connections in a compatible Class J fuse holder or panel. Verify the rated 20 A current path and ensure the circuit is de-energized before mounting. The dual-element design tolerates inrush, while the 600 Vac rating protects downstream equipment. Confirm alignment with the 300 kAIC interrupt rating for your fault current level and secure the ferrules to prevent loose connections.
Key specs include a 20 A amperage rating, 600 Vac voltage rating, and a 300 kAIC interrupt rating at 600 Vac. It is a time-delay, dual-element current-limiting fuse with a 10-second response time at 500% overload. The unit uses ferrule-end terminations and conforms to CE and RoHS requirements for broad compatibility.
Yes. The LPJ-20SPI is designed for high in-rush current motor protection, featuring a time-delay characteristic that tolerates startup surges while still clamping fault currents. This makes it suitable for motor drives, conveyors, compressors, and other equipment with significant startup currents, reducing nuisance trips without compromising protection.
The LPJ-20SPI is CE Marked and RoHS Compliant, ensuring compliance with European safety, health, and environmental standards. Its Class J dual-element protection and adherence to industry requirements support regulatory and supplier qualification processes in global manufacturing environments.
The LPJ-20SPI reduces downtime through reliable protection for motor circuits while mitigating nuisance trips from inrush. Its compact Class J form factor simplifies panel design and wiring, lowering installation time. The combination of regulatory compliance, durable protection, and easy replacement supports lower maintenance costs and improved overall return on investment.