Eaton JKS-90 Fuse - Class J, 600V, 90A, CE Marked
Part Number: JKS-90
Quick Summary
The Eaton JKS-90 fuse provides fast-acting overcurrent protection for industrial control panels. Engineers often confront nuisance tripping and unplanned downtime when protection devices do not match system currents. This Class J, current-limiting fuse is CE marked and rated for 90 A with a 600 V maximum, delivering up to 200 kAIC interrupt capability to safely clear faults. The design supports easy procurement and maintenance within Bussmann’s trusted line, enabling consistent stocking with a 5-count package and bolted blade ends for robust installation. By aligning fuse choice with load profiles, engineering teams can reduce arc energy in faults and improve overall equipment reliability while simplifying replacement and sourcing.
Product Information
Extended Description
JKS-90 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 90 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-90
UPC
051712630900
Product Length/Depth
4.63 in
Product Height
1.13 in
Product Width
1.13 in
Product Weight
0.29 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
90 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
5
Special features
Non-indicating
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Bussmann series Fuseology
Bussmann series JKS fast-acting Class J fuses, 70-600A technical data sheet no. 1027
Feature: Class J fast-acting, current-limiting fuse with 90 A rating and 600 V capability. Business Impact: Superior selective protection reduces fault energy, minimizing collateral damage to transformers, drives, and wiring. Application: Ideal for industrial control panels and motor circuits needing precise protection without prolonged opening times. Feature: 200 kAIC interrupt rating at 600 Vac. Business Impact: High fault current capability ensures safe interruption in demanding power distribution environments, lowering risk of equipment damage. Application: Heavy-duty panelboards and distribution feeders in factories. Feature: Bolted blade end x bolted blade end connection. Business Impact: Robust, vibration-resistant installation with reliable contact integrity, reducing maintenance intervals. Application: Enclosures and switchgear assemblies in 24/7 operation. Feature: Compact form factor (4.63 in L × 1.13 in W × 1.13 in H) and single element, standard packaging. Business Impact: Easier panel integration and faster stocking, improving procurement efficiency and reducing storage footprint. Application: Retrofit projects and new builds using standard Bussmann components. Feature: CE Marked compliance and Bussmann series compatibility. Business Impact: Regulatory alignment across EU markets and streamlined sourcing across Eaton’s protection portfolio. Application: Global manufacturing facilities needing consistent protection schemes and documented compliance.
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FAQs
The JKS-90 is designed with bolted blade ends for straightforward, secure mounting in standard Bussmann Class J holders. Ensure the circuit is de-energized before installation, align the fuse ends with the holder contacts, and tighten the bolts to manufacturer torque guidelines. The 4.63 in length and 1.13 in width fit common protection footprints, reducing installation time and minimizing rework.
The JKS-90 features a 90 A amperage rating, a 600 V voltage rating, and a 200 kAIC interrupt rating at 600 Vac. It is a fast-acting, current-limiting Class J fuse, designed to clear faults quickly and limit energy transfer, protecting downstream equipment such as drives, motors, and control circuits in demanding environments.
Yes, for appropriately sized motor circuits, the JKS-90 provides fast-acting, current-limiting protection that helps prevent arc damage and downline faults. Verify motor full-load current and inrush characteristics to select the correct rating, and ensure the protection scheme aligns with Class J fuse characteristics and your drive or motor controller requirements.
The JKS-90 is CE Marked, indicating compliance with European safety standards. It is a Bussmann-series Class J fuse with robust protection ratings (90 A, 600 V, 200 kAIC). While no UL listing is stated in the data, CE compliance supports international adoption in EU markets, and Eaton provides the broader Bussmann protection ecosystem for compatibility.
Using the JKS-90 can reduce downtime by providing precise, rapid fault clearing in high-current circuits, protecting downstream equipment and limiting damage. Its 5-pack quantity supports scalable procurement, while its compatibility with standard blade-end assemblies simplifies stocking, replacement, and maintenance workflows, contributing to lower total cost of ownership over equipment life cycles.