Eaton JKS-50 Fuse - 200 kAIC @ 600 Vac, Class J
Part Number: JKS-50
Quick Summary
The JKS fuse from Eaton is a fast-acting protection device designed for industrial control circuits and power distribution panels. Engineers often battle nuisance outages and poor selectivity in demanding equipment; the JKS-50 delivers reliable current limiting and fast fault clearance. It is CE marked and RoHS compliant, rated for 600 V systems with a 200 kAIC interrupt rating. With ferrule-end connections and a compact Bussmann-series form factor, it installs quickly, reducing downtime and maintenance costs in panel boards and motor drives. This combination supports robust electrical protection strategies across industrial environments, delivering dependable performance while simplifying procurement for global deployments.
Product Information
Extended Description
JKS-50 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 50 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-50
UPC
051712630504
Product Length/Depth
2.38 in
Product Height
1 in
Product Width
1 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
50 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Number of elements
1
Packaging type
Standard
Class
Class J
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series JKS Class J data sheet no. 1026
Feature: Class J, fast-acting design and current-limiting protection. Business Impact: Quickly clears fault currents to minimize arc energy and equipment damage, extending the life of drives, transformers, and switchgear. Application: Ideal for panel boards and motor control centers in manufacturing lines where space is at a premium. Feature: 50 A amperage with 200 kAIC interrupt rating at 600 V. Business Impact: Supports protection of medium-load circuits against high-energy faults without nuisance tripping, reducing unplanned downtime. Application: Motor starters, control circuits, and power distribution panels in industrial facilities. Feature: Ferrule-end x ferrule-end connection and standard packaging. Business Impact: Simplifies field wiring and replacement, enabling faster maintenance and lower inventory complexity. Application: Retrofit into existing Bussmann series assemblies and new panel builds. Feature: RoHS and CE compliance. Business Impact: Ensures regulatory alignment for global deployments, minimizing compliance risk and supplier audits. Application: Worldwide manufacturing and export-oriented facilities. Feature: Special features include indicating status. Business Impact: Improves diagnostics during maintenance, enabling quick fault localization and reduced mean time to repair. Application: OEM equipment and serviceable field installations where status visibility aids uptime.
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FAQs
Install the JKS-50 in compatible Bussmann series fuse holders with ferrule-end wiring. Verify the panel is rated for 600 V and that the circuit current requirement does not exceed 50 A. Ensure correct orientation and seating of the fuse to maintain the manufacturer’s interrupting rating, and replace only with identical Class J fuses to preserve coordination.
Key specs are a 50 A current rating, 200 kAIC interrupt rating at 600 Vac, and a 600 V voltage rating. These figures determine protection coordination with feeders and downstream devices, ensuring fast fault clearing while preventing unnecessary tripping in normal operation.
Best suited for industrial controls, motor drives, and distribution panels where space is limited and high fault currents can occur. The Class J fuse provides reliable protection for medium-load circuits in panel boards and control cabinets, enabling safe operation of manufacturing lines.
Yes. The JKS-50 is CE marked and RoHS compliant, aligning with common European regulatory requirements and reducing compliance risk for global deployments in manufacturing and processing environments.
By delivering fast fault clearance with a high interrupt rating and a compact form factor, the JKS-50 minimizes unplanned downtime and enables quicker maintenance. Its standardization with Bussmann-series components also reduces spare-part complexity and inventory costs while extending equipment life.