Eaton JKS-250 Fuse Series - Class J, RoHS Compliant
Part Number: JKS-250
Quick Summary
The Eaton JKS-250 fuse is a fast-acting Class J current-limiting device for protecting 250 A circuits in industrial control panels. Design engineers often encounter delays when selecting fuses that deliver both reliable protection and clean panel integration. It carries RoHS compliance and is rated for 600 V with a 200 kAIC interrupt rating, supporting safe operation in demanding power circuits. In practice, the JKS-250 simplifies procurement and reduces downtime by matching standard Bussmann Series form factors, enabling quick swaps across multiple panels. This fuse also contributes to regulatory compliance while maintaining compact physical dimensions for space-constrained installations. Advanced compatibility and installation advantages help engineers streamline design reviews and field service tasks.
Product Information
Extended Description
JKS-250 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 250 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-250
UPC
051712632508
Product Length/Depth
7.13 in
Product Height
2 in
Product Width
2 in
Product Weight
1.85 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
250 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
The JKS-250 fuse uses a fast-acting, Class J design to achieve rapid fault clearance, reducing the energy released during a short circuit and protecting sensitive electrical equipment. Business impact is clear: fewer mis-trips, less wear on downstream components, and lower total cost of ownership due to reduced downtime and maintenance. In practical applications, this makes it ideal for motor control centers, power distribution panels, and industrial automation cabinets where space is at a premium and reliable protection is non-negotiable. The device’s 250 A rating paired with a 200 kAIC interrupt rating at 600 V ensures strong fault response in high-energy environments, supporting safer shutdown sequences and smoother commissioning. The bolt-end termination and standard 7.13 in length, plus a 2x2 in footprint, simplify installation, spare management, and cross-panel compatibility within the Eaton Bussmann Series. RoHS compliance adds environmental assurance for modern manufacturing. This fuse also minimizes nuisance tripping in variable loads, which translates to improved line uptime, better process control, and fewer unscheduled outages. In practice, engineers benefit from the consistent performance of Class J fast-acting fuses across a broad range of industrial applications, reducing design risk and accelerating project timelines. Compatibility with standard Bussmann catalogs means faster stocking and predictable lead times, helping procurement teams optimize sourcing strategies. Overall, the JKS-250 delivers a reliable protection solution with a favorable total cost of ownership for today’s automated facilities.
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FAQs
The JKS-250 is designed to protect 250 A circuits in industrial control panels, motor control centers, and power distribution assemblies. Its 600 V rating, 200 kAIC interrupt rating, and Class J fast-acting behavior make it ideal for demanding machinery and automation equipment, delivering reliable protection while supporting easy integration with Eaton Bussmann Series components.
The JKS-250 uses bolted blade-end x bolted blade-end connections, providing secure terminations. It fits a standard 7.13 in length with a 2 in width and height footprint, enabling straightforward retrofits and panel substitutions. Ensure the mounting aligns with panel design and that compatible Bussmann Series holders or bus assemblies are used for reliable electrical contact.
Yes, the JKS-250 is RoHS compliant, signifying it meets environmental restrictions on hazardous substances. For projects, this means easier regulatory approval in many regions, reduced risk of non-compliance penalties, and a safer integration with other RoHS-compliant components in modern electrical panels and machinery.
Class J fuses are fast-acting, current-limiting devices designed to clear faults quickly with high interrupt capabilities. The JKS-250 offers precise protection for high-energy circuits with dependable reproducibility, enabling tighter control of arc energy and safer, more reliable equipment protection in industrial environments.
Using the JKS-250 can lower downtime due to its fast clearing action and high interrupt rating, reducing motor and drive damage from faults. Standardized form factors simplify stocking and maintenance, while RoHS compliance helps future-proof purchases. Over time, these factors contribute to lower maintenance costs and shorter project lead times.