Eaton LPJ-17-1/2SP Fuse - Class J Time-Delay
Part Number: LPJ-17-1/2SP
Quick Summary
Eaton LPJ fuse provides time-delay protection for motors and control panels in industrial applications. Choosing a fuse that trips too early during motor inrush can cause unexpected downtime and costly production stops. This LPJ device combines a dual-element current-limiting design with a sturdy Class J form factor, delivering reliable protection across a broad spectrum of equipment. It is CE marked and RoHS compliant, aligning with essential global safety and environmental requirements. Engineers appreciate the predictability of its interrupting performance—up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc—while benefiting from straightforward procurement and installation in standard electrical panels. In practice, this fuse supports efficiency, uptime, and regulatory readiness in motor control and automation applications.
Product Information
Extended Description
LPJ-17-1/2SP Eaton: Eaton Bussmann Series Class J fuse, LPJ, time-delay, dual-element current limiting fuse, 17.5 A, non-idicating fuse, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc
Product Name
Eaton Bussmann series LPJ fuse
Catalog Number
LPJ-17-1/2SP
UPC
051712523271
Product Length/Depth
2.25 in
Product Height
0.8 in
Product Width
0.8 in
Product Weight
0.105 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
17.5 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
Special features
Non-indicating, High in-rush current motor protection
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series LPJ Low-Peak 1-60A data sheet No. 1006
Time-delay, dual-element protection is a core feature of the LPJ-17-1/2SP. This combination provides high inrush tolerance while maintaining current-limiting behavior, reducing nuisance trips during motor start and startup transients. It’s well suited for motor controllers, conveyors, and pumps in demanding industrial environments. Amperage and voltage ratings define its protective envelope. The 17.5 A rating combined with a 600 Vac and 300 Vdc capability ensures compatibility with common industrial power systems while preserving safe interrupt behavior. This enables engineers to select a fuse that matches motor fuse-sizing guidelines and control circuit needs, lowering the risk of under- or over-protection. Interruption capability and fast response. With an interrupt rating up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, the LPJ-17-1/2SP provides robust fault current protection for high-energy panels and equipment. The specified 10-second response time at 500% gives predictable protective action without compromising normal operation in steady loads. Physical design and compatibility advantages. The fuse uses ferrule-end connections and a compact 2.25 in length with 0.8 in width and height, enabling straightforward drop-in replacement in many Bussmann LPJ installations. Non-indicating indicators simplify integration into panels where status signaling is conveyed by separate indicators, while the standard packaging supports stocking and procurement processes. Compliance and lifecycle support. The CE marking and RoHS compliance simplify cross-border sourcing and regulatory acceptance, backed by Eaton’s Bussmann series performance heritage. This fuse’s dual-element design supports motor protection strategies that balance reliability, safety, and total cost of ownership over time.
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FAQs
The LPJ-17-1/2SP uses ferrule-end terminations (ferrule end x ferrule end) with a compact footprint of 2.25 inches in length and 0.8 inches in width/height. It fits standard Bussmann LPJ assemblies and requires secure mounting within motor control panels. Because it is non-indicating, status signaling should be managed via separate panel indicators to avoid signaling conflicts.
This fuse is rated for 17.5 A, with voltage ratings of 600 Vac and 300 Vdc. It delivers interrupt ratings up to 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc, with a 10-second response time at 500% overload. These specs support reliable protection for motor circuits and other high-energy loads in controlled industrial environments.
Yes. The LPJ-17-1/2SP’s time-delay, dual-element current-limiting design handles motor startup surges, minimizing nuisance trips while providing solid fault protection. Its Class J format and ferrule-end connections simplify integration into common conveyor control panels, offering robust protection for motors, drives, and associated equipment.
The LPJ fuse is CE marked and RoHS compliant, ensuring alignment with European safety standards and environmental regulations. These certifications simplify cross-border sourcing and regulatory acceptance for global manufacturing, helping avoid compliance gaps in multinational projects.
With non-indicating status by design, rely on external signaling for indication. Stocking LPJ-17-1/2SP spares, using its standard ferrule-end design for quick swaps, minimizes downtime. The robust 17.5 A, 600 Vac/300 Vdc ratings, and high interrupt capability help reduce risk of cascading faults, improving overall equipment availability and total cost of ownership.