Eaton LPJ-175SPI Fuse - Class J 600V 300kAIC

Part Number: LPJ-175SPI
Manufacturer
Eaton
Part number
LPJ-175SPI

Quick Summary

The Eaton LPJ-175SPI fuse provides reliable current-limiting protection for motor drives and power circuits. Engineers often contend with nuisance inrush and miscoordination between fuses and motor starters during startup. It is CE marked and RoHS compliant, and belongs to the Class J family, delivering consistent protection for demanding industrial environments. This solution reduces unplanned downtime by preventing short circuits while tolerating normal motor inrush, helping keep lines up and running. Use in automation panels, conveyors, and pumps to improve reliability, safety, and maintenance planning while meeting global compliance requirements.

Product Information

Extended Description

LPJ-175SPI Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 175 A, indicating fuse, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-175SPI
UPC
051712628198
Product Length/Depth
5.75 in
Product Height
1.5 in
Product Width
1.5 in
Product Weight
0.8 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
175 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
Time-delay dual-element design provides sustained protection during motor startups. This means the fuse tolerates normal inrush currents without sacrificing fault-clearing performance, reducing nuisance trips and premature replacements in feeders and drives. High interrupt rating of 300 kAIC at 600 Vac translates to robust protection in high-current faults, allowing upstream fuses and circuit breakers to coordinate without sacrificing safety. In industrial environments, this rating supports reliable shutoff of short circuits while minimizing collateral damage. Voltage rating of 600 Vac and 300 Vdc enables compatibility with mixed-supply systems in panel upgrades or retrofits. The LPJ-175SPI protects AC drives, motors, and control circuits across standard voltage levels, simplifying stocking and maintenance planning. Bolted blade end x bolted blade end connections simplify installation and improve electrical continuity, with a predictable 5.75 in length and 1.5 in width/height fit. Protection and compliance features include CE marking and RoHS compliance, aligning with global procurement standards and responsible sourcing.

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FAQs

Ensure the bolted blade end x bolted blade end connection is properly torqued to the manufacturer's specification, with appropriate clearance and mounting in an approved enclosure. Verify the fuse length of 5.75 in and width/height of 1.5 in to fit Class J applications, and confirm panel rails or bus connections are compatible with Bussmann LPJ styles.
The time-delay aspect accommodates normal motor starting surges, while the dual-element construction enables rapid response to genuine faults. This combination reduces nuisance trips during startup, extends fuse life, and improves machine uptime. It is particularly advantageous for conveyors, pumps, and fan drives where frequent inrush occurs.
Yes. The LPJ-175SPI is CE marked and RoHS compliant, aligning with international safety and environmental standards. Its 175 A rating, 600 Vac voltage, and 300 kAIC interrupt capability support motor protection in diverse industrial environments, from panelboards to automation centers, while enabling consistent protection coordination with upstream devices.
Verify the 175 A amperage rating, 600 Vac / 300 Vdc voltage rating, and 300 kAIC interrupt rating at 600 Vac. Confirm the fuse type is time-delay and current-limiting, with dual elements. Also check the connection style (bolted blade end x bolted blade end) and confirm Class J compatibility for your protection scheme.
The LPJ-175SPI is designed for reliable protection with minimal maintenance when used in appropriate motor control environments. Its RoHS/CE compliance supports sustainable procurement. Keep spares on hand for consistent panel protection in automation lines, and plan replacement based on fault events or routine testing of upstream protection coordination to avoid extended downtime.