Eaton JKS-300 Fuse - Class J, 200 kAIC RoHS compliant
Part Number: JKS-300
Quick Summary
The Eaton JKS-300 fuse is a fast-acting, current-limiting protection device for industrial power circuits. Engineers often grapple with nuisance trips, downtime, and selecting fuses that can handle high fault currents without compromising safety. RoHS compliance ensures environmental responsibility, while the Class J design with a 200 kAIC interrupt rating supports reliability in critical equipment. Designed for easy integration, it aligns with Bussmann series accessories and offers a robust balance of protection and procurement efficiency, supporting regulated environments and streamlined sourcing for panel builders and machine manufacturers.
Product Information
Extended Description
JKS-300 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 300 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-300
UPC
051712633000
EAN
5027590445115
Product Length/Depth
2 in
Product Height
7.13 in
Product Width
2 in
Product Weight
1.85 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
300 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Number of elements
1
Packaging type
Standard
Class
Class J
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Quantity
1
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series JKS fast-acting Class J fuses, 70-600A technical data sheet no. 1027
Fast-acting Class J fuse with current-limiting action delivers rapid fault interruption, reducing arc energy and protecting downstream equipment. Business impact: minimized equipment damage, shorter downtime, and improved overall line reliability in motor control centers and distribution panels. Application: ideal for industrial drives and power panels where reliable protection is essential. High amperage rating of 300 A with an interrupt rating of 200 kAIC at 600 Vac enables effective protection for high-current feeders and motors. Impact: supports safer startup sequences and fault handling without nuisance openings. Application: machine tools, presses, conveyors, and heavy machinery in manufacturing environments. Rejection-style fuse with bolted blade end x bolted blade end provides secure mounting and consistent contact reliability. Impact: reduces vibration-induced connection issues and simplifies field servicing. Application: control cabinets in dynamic industrial settings where dependable connections matter. RoHS compliant construction aligns with sustainability and regulatory requirements, while standard Bussmann series compatibility ensures easy sourcing of accessories and replacement parts. Impact: lowers lifecycle costs and shortens procurement cycles for OEMs and integrators. Application: panel builders seeking regulated compliance and readily available inventory. Compact form factor with 2 in length and 7.13 in height fits in standard protection enclosures, enabling straightforward installation alongside cataloged Bussmann components. Impact: faster panel assembly, reduced field labor, and predictable maintenance routines. Application: distribution blocks and compact power centers in light-to-medium industrial installations.
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FAQs
The JKS-300 uses bolted blade end connections and fits standard Bussmann accessories. It measures 2 inches in length and 7.13 inches in height, with a width of 2 inches, and weighs about 1.85 pounds. When installing, ensure secure bolted mounting, proper torque on end connections, and alignment with the enclosure’s available space for safe clearance and ventilation. Refer to the datasheet for torque specs and mounting guidelines.
Key specs include a 300 A amperage rating, a 200 kAIC interrupt rating at 600 Vac, and a 600 V voltage rating. It is a single-element, fast-acting Class J fuse with current-limiting characteristics. The product is RoHS compliant and designed for high-current industrial applications, delivering dependable protection in demanding electrical systems.
Ideal for industrial protection and control panels, motor drives, and power distribution centers. It is well-suited for machine tools, conveyors, and other high-current equipment in manufacturing environments where fast fault interruption and high interrupt ratings are critical for uptime and equipment protection.
The JKS-300 is RoHS compliant, aligning with environmental and regulatory standards for electrical components. Comprehensive technical data sheets and catalog PDFs are available from Eaton, including the Bussmann series JKS datasheet and related safety documentation to support compliance reviews and precise part selection.
By combining fast protection with a high interrupt rating and reliable, secure mounting, the JKS-300 reduces the likelihood of catastrophic failures, minimizes downtime, and lowers maintenance frequency. Its RoHS compliance supports sustainable procurement, and compatibility with standard Bussmann accessories streamlines spares, inventory management, and supplier relationships.